/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-lit/gj2007.c.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 11:35:54,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 11:35:54,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 11:35:54,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 11:35:54,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 11:35:54,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 11:35:54,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 11:35:54,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 11:35:54,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 11:35:54,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 11:35:54,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 11:35:54,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 11:35:54,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 11:35:54,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 11:35:54,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 11:35:54,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 11:35:54,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 11:35:54,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 11:35:54,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 11:35:54,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 11:35:54,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-06 11:35:54,444 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 11:35:54,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 11:35:54,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 11:35:54,447 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 11:35:54,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 11:35:54,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 11:35:54,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 11:35:54,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 11:35:54,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 11:35:54,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 11:35:54,449 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 11:35:54,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 11:35:54,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 11:35:54,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 11:35:54,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 11:35:54,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 11:35:54,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 11:35:54,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 11:35:54,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:35:54,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 11:35:54,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-06 11:35:54,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 11:35:54,452 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-06 11:35:54,452 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 11:35:54,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 11:35:54,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 11:35:54,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 11:35:54,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 11:35:54,866 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 11:35:54,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007.c.i.p+lhb-reducer.c [2021-05-06 11:35:54,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/860ed1e9f/6ee8caf575744132987e19b7d8ebb12f/FLAG3fc2e0a98 [2021-05-06 11:35:55,436 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 11:35:55,436 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007.c.i.p+lhb-reducer.c [2021-05-06 11:35:55,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/860ed1e9f/6ee8caf575744132987e19b7d8ebb12f/FLAG3fc2e0a98 [2021-05-06 11:35:55,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/860ed1e9f/6ee8caf575744132987e19b7d8ebb12f [2021-05-06 11:35:55,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 11:35:55,815 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 11:35:55,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 11:35:55,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 11:35:55,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 11:35:55,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:35:55" (1/1) ... [2021-05-06 11:35:55,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70358648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:55, skipping insertion in model container [2021-05-06 11:35:55,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:35:55" (1/1) ... [2021-05-06 11:35:55,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 11:35:55,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 11:35:55,976 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2021-05-06 11:35:55,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:35:56,006 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 11:35:56,040 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2021-05-06 11:35:56,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:35:56,085 INFO L208 MainTranslator]: Completed translation [2021-05-06 11:35:56,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56 WrapperNode [2021-05-06 11:35:56,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 11:35:56,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 11:35:56,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 11:35:56,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 11:35:56,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (1/1) ... [2021-05-06 11:35:56,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (1/1) ... [2021-05-06 11:35:56,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (1/1) ... [2021-05-06 11:35:56,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (1/1) ... [2021-05-06 11:35:56,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (1/1) ... [2021-05-06 11:35:56,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (1/1) ... [2021-05-06 11:35:56,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (1/1) ... [2021-05-06 11:35:56,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 11:35:56,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 11:35:56,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 11:35:56,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 11:35:56,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:35:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 11:35:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 11:35:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 11:35:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 11:35:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 11:35:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 11:35:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 11:35:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 11:35:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 11:35:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 11:35:56,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 11:35:56,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 11:35:56,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 11:35:56,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 11:35:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 11:35:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 11:35:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 11:35:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 11:35:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 11:35:56,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 11:35:56,567 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-06 11:35:56,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:35:56 BoogieIcfgContainer [2021-05-06 11:35:56,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 11:35:56,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 11:35:56,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 11:35:56,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 11:35:56,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 11:35:55" (1/3) ... [2021-05-06 11:35:56,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c08014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:35:56, skipping insertion in model container [2021-05-06 11:35:56,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:35:56" (2/3) ... [2021-05-06 11:35:56,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c08014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:35:56, skipping insertion in model container [2021-05-06 11:35:56,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:35:56" (3/3) ... [2021-05-06 11:35:56,575 INFO L111 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+lhb-reducer.c [2021-05-06 11:35:56,597 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-06 11:35:56,601 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 11:35:56,626 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 11:35:56,645 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 11:35:56,645 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 11:35:56,645 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-06 11:35:56,645 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 11:35:56,645 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 11:35:56,646 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 11:35:56,646 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 11:35:56,646 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 11:35:56,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 28 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:35:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-06 11:35:56,667 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:35:56,667 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:35:56,668 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:35:56,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:35:56,673 INFO L82 PathProgramCache]: Analyzing trace with hash 66787427, now seen corresponding path program 1 times [2021-05-06 11:35:56,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:35:56,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388616899] [2021-05-06 11:35:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:35:56,739 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:35:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:56,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:35:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:35:56,910 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:35:56,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388616899] [2021-05-06 11:35:56,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1388616899] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:35:56,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:35:56,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 11:35:56,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769549035] [2021-05-06 11:35:56,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 11:35:56,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:35:56,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 11:35:56,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:35:56,931 INFO L87 Difference]: Start difference. First operand has 33 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 28 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:35:57,302 INFO L93 Difference]: Finished difference Result 60 states and 98 transitions. [2021-05-06 11:35:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 11:35:57,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-06 11:35:57,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:35:57,313 INFO L225 Difference]: With dead ends: 60 [2021-05-06 11:35:57,313 INFO L226 Difference]: Without dead ends: 29 [2021-05-06 11:35:57,317 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 157.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-06 11:35:57,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-06 11:35:57,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-05-06 11:35:57,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2021-05-06 11:35:57,365 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 27 [2021-05-06 11:35:57,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:35:57,365 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2021-05-06 11:35:57,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,366 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2021-05-06 11:35:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-06 11:35:57,367 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:35:57,367 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:35:57,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 11:35:57,367 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:35:57,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:35:57,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1388086372, now seen corresponding path program 1 times [2021-05-06 11:35:57,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:35:57,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896415715] [2021-05-06 11:35:57,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:35:57,376 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:35:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:57,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:35:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:35:57,526 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:35:57,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896415715] [2021-05-06 11:35:57,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1896415715] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:35:57,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:35:57,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 11:35:57,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506102409] [2021-05-06 11:35:57,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 11:35:57,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:35:57,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 11:35:57,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 11:35:57,528 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:35:57,657 INFO L93 Difference]: Finished difference Result 58 states and 80 transitions. [2021-05-06 11:35:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-06 11:35:57,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-06 11:35:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:35:57,659 INFO L225 Difference]: With dead ends: 58 [2021-05-06 11:35:57,659 INFO L226 Difference]: Without dead ends: 43 [2021-05-06 11:35:57,660 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:35:57,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-06 11:35:57,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-05-06 11:35:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2021-05-06 11:35:57,671 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 27 [2021-05-06 11:35:57,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:35:57,671 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-05-06 11:35:57,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,671 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2021-05-06 11:35:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-06 11:35:57,672 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:35:57,672 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:35:57,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 11:35:57,673 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:35:57,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:35:57,673 INFO L82 PathProgramCache]: Analyzing trace with hash -2120308874, now seen corresponding path program 1 times [2021-05-06 11:35:57,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:35:57,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753154227] [2021-05-06 11:35:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:35:57,675 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:35:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:57,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:35:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:35:57,751 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:35:57,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753154227] [2021-05-06 11:35:57,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [753154227] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:35:57,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:35:57,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-06 11:35:57,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844188943] [2021-05-06 11:35:57,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-06 11:35:57,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:35:57,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-06 11:35:57,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-06 11:35:57,753 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:35:57,929 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2021-05-06 11:35:57,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 11:35:57,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-06 11:35:57,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:35:57,930 INFO L225 Difference]: With dead ends: 58 [2021-05-06 11:35:57,931 INFO L226 Difference]: Without dead ends: 41 [2021-05-06 11:35:57,931 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 121.3ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-06 11:35:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-05-06 11:35:57,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-05-06 11:35:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2021-05-06 11:35:57,939 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 27 [2021-05-06 11:35:57,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:35:57,940 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2021-05-06 11:35:57,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:57,940 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2021-05-06 11:35:57,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-06 11:35:57,941 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:35:57,941 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:35:57,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-06 11:35:57,941 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:35:57,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:35:57,941 INFO L82 PathProgramCache]: Analyzing trace with hash 80992202, now seen corresponding path program 1 times [2021-05-06 11:35:57,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:35:57,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968439875] [2021-05-06 11:35:57,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:35:57,943 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:35:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:58,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:35:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:35:58,032 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:35:58,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968439875] [2021-05-06 11:35:58,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [968439875] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:35:58,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:35:58,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-06 11:35:58,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016492054] [2021-05-06 11:35:58,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 11:35:58,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:35:58,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 11:35:58,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-06 11:35:58,034 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:58,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:35:58,349 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2021-05-06 11:35:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-06 11:35:58,350 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-06 11:35:58,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:35:58,353 INFO L225 Difference]: With dead ends: 52 [2021-05-06 11:35:58,353 INFO L226 Difference]: Without dead ends: 37 [2021-05-06 11:35:58,354 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 226.8ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-05-06 11:35:58,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-06 11:35:58,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-05-06 11:35:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:58,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-05-06 11:35:58,366 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 27 [2021-05-06 11:35:58,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:35:58,366 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-05-06 11:35:58,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-05-06 11:35:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-06 11:35:58,369 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:35:58,369 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:35:58,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-06 11:35:58,369 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:35:58,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:35:58,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2094273526, now seen corresponding path program 1 times [2021-05-06 11:35:58,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:35:58,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229770179] [2021-05-06 11:35:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:35:58,376 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:35:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:58,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:35:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:35:58,532 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:35:58,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229770179] [2021-05-06 11:35:58,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [229770179] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:35:58,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:35:58,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-06 11:35:58,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726003506] [2021-05-06 11:35:58,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-06 11:35:58,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:35:58,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-06 11:35:58,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-05-06 11:35:58,534 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:58,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:35:58,862 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2021-05-06 11:35:58,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-06 11:35:58,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-06 11:35:58,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:35:58,865 INFO L225 Difference]: With dead ends: 44 [2021-05-06 11:35:58,865 INFO L226 Difference]: Without dead ends: 33 [2021-05-06 11:35:58,866 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 277.1ms TimeCoverageRelationStatistics Valid=108, Invalid=164, Unknown=0, NotChecked=0, Total=272 [2021-05-06 11:35:58,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-06 11:35:58,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-05-06 11:35:58,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2021-05-06 11:35:58,879 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 27 [2021-05-06 11:35:58,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:35:58,880 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-05-06 11:35:58,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2021-05-06 11:35:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-06 11:35:58,882 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:35:58,882 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:35:58,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-06 11:35:58,883 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:35:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:35:58,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2013335789, now seen corresponding path program 1 times [2021-05-06 11:35:58,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:35:58,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597477413] [2021-05-06 11:35:58,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:35:58,885 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:35:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:35:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:35:58,963 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:35:58,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597477413] [2021-05-06 11:35:58,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1597477413] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:35:58,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:35:58,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 11:35:58,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771499512] [2021-05-06 11:35:58,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 11:35:58,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:35:58,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 11:35:58,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 11:35:58,964 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:35:59,075 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-05-06 11:35:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-06 11:35:59,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-06 11:35:59,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:35:59,076 INFO L225 Difference]: With dead ends: 36 [2021-05-06 11:35:59,076 INFO L226 Difference]: Without dead ends: 33 [2021-05-06 11:35:59,077 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:35:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-06 11:35:59,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-05-06 11:35:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2021-05-06 11:35:59,083 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 27 [2021-05-06 11:35:59,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:35:59,083 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2021-05-06 11:35:59,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:59,084 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2021-05-06 11:35:59,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-06 11:35:59,084 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:35:59,084 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:35:59,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-06 11:35:59,084 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:35:59,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:35:59,085 INFO L82 PathProgramCache]: Analyzing trace with hash 2013901818, now seen corresponding path program 1 times [2021-05-06 11:35:59,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:35:59,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282847434] [2021-05-06 11:35:59,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:35:59,086 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:35:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:59,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:35:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:35:59,237 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:35:59,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282847434] [2021-05-06 11:35:59,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1282847434] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:35:59,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:35:59,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-06 11:35:59,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961243233] [2021-05-06 11:35:59,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-06 11:35:59,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:35:59,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-06 11:35:59,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-05-06 11:35:59,239 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:35:59,656 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2021-05-06 11:35:59,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-06 11:35:59,656 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-06 11:35:59,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:35:59,657 INFO L225 Difference]: With dead ends: 38 [2021-05-06 11:35:59,657 INFO L226 Difference]: Without dead ends: 31 [2021-05-06 11:35:59,657 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 354.3ms TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2021-05-06 11:35:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-05-06 11:35:59,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-05-06 11:35:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2021-05-06 11:35:59,664 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2021-05-06 11:35:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:35:59,664 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2021-05-06 11:35:59,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:35:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-05-06 11:35:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-06 11:35:59,665 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:35:59,665 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:35:59,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-06 11:35:59,665 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:35:59,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:35:59,666 INFO L82 PathProgramCache]: Analyzing trace with hash 2072871847, now seen corresponding path program 1 times [2021-05-06 11:35:59,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:35:59,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201013702] [2021-05-06 11:35:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:35:59,714 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:35:59,745 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:35:59,760 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:35:59,773 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:35:59,777 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:35:59,792 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:35:59,808 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:35:59,812 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-06 11:35:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:59,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:35:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:35:59,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:00,006 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:00,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201013702] [2021-05-06 11:36:00,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [201013702] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:00,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:00,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-06 11:36:00,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674091433] [2021-05-06 11:36:00,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-06 11:36:00,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:00,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-06 11:36:00,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-05-06 11:36:00,009 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:00,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:00,418 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2021-05-06 11:36:00,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-06 11:36:00,419 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-05-06 11:36:00,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:00,419 INFO L225 Difference]: With dead ends: 38 [2021-05-06 11:36:00,419 INFO L226 Difference]: Without dead ends: 33 [2021-05-06 11:36:00,421 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 405.9ms TimeCoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2021-05-06 11:36:00,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-06 11:36:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-05-06 11:36:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:00,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-05-06 11:36:00,427 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 29 [2021-05-06 11:36:00,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:00,427 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-05-06 11:36:00,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-05-06 11:36:00,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-06 11:36:00,428 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:00,428 INFO L523 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:00,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-06 11:36:00,428 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:00,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:00,429 INFO L82 PathProgramCache]: Analyzing trace with hash -928406012, now seen corresponding path program 1 times [2021-05-06 11:36:00,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:00,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645341383] [2021-05-06 11:36:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:00,445 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:00,453 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:00,459 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:00,466 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:00,473 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:00,498 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:00,524 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:00,531 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:00,546 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:00,550 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:00,566 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:00,581 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:00,585 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:00,592 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:00,598 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:00,611 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:00,630 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:00,638 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:00,641 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:00,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:00,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:00,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:01,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:01,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:01,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:01,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:01,119 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:01,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645341383] [2021-05-06 11:36:01,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1645341383] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:01,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:01,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-06 11:36:01,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843376950] [2021-05-06 11:36:01,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-06 11:36:01,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:01,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-06 11:36:01,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2021-05-06 11:36:01,120 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:01,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:01,736 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2021-05-06 11:36:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-06 11:36:01,739 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-05-06 11:36:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:01,740 INFO L225 Difference]: With dead ends: 38 [2021-05-06 11:36:01,740 INFO L226 Difference]: Without dead ends: 35 [2021-05-06 11:36:01,741 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 738.7ms TimeCoverageRelationStatistics Valid=276, Invalid=536, Unknown=0, NotChecked=0, Total=812 [2021-05-06 11:36:01,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-06 11:36:01,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2021-05-06 11:36:01,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2021-05-06 11:36:01,749 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 31 [2021-05-06 11:36:01,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:01,750 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2021-05-06 11:36:01,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:01,750 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2021-05-06 11:36:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-06 11:36:01,750 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:01,751 INFO L523 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:01,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-06 11:36:01,751 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:01,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1147481854, now seen corresponding path program 2 times [2021-05-06 11:36:01,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:01,752 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117294478] [2021-05-06 11:36:01,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:01,761 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:01,770 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:01,777 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:01,784 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:01,793 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:01,804 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:01,821 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:01,824 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:01,838 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:01,841 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:01,853 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:01,869 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:01,871 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:01,879 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:01,881 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:01,884 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:01,896 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:01,898 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:01,925 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:01,939 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:01,950 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:01,951 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:01,959 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:01,971 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:01,979 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:01,980 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:02,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:02,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:02,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:02,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:02,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:02,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:02,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:02,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:02,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:02,444 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:02,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117294478] [2021-05-06 11:36:02,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2117294478] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:02,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:02,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-06 11:36:02,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238608185] [2021-05-06 11:36:02,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-06 11:36:02,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:02,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-06 11:36:02,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2021-05-06 11:36:02,446 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 16 states, 16 states have (on average 1.8125) internal successors, (29), 15 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:03,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:03,049 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-05-06 11:36:03,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-06 11:36:03,050 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.8125) internal successors, (29), 15 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-05-06 11:36:03,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:03,050 INFO L225 Difference]: With dead ends: 40 [2021-05-06 11:36:03,050 INFO L226 Difference]: Without dead ends: 37 [2021-05-06 11:36:03,051 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 758.7ms TimeCoverageRelationStatistics Valid=284, Invalid=646, Unknown=0, NotChecked=0, Total=930 [2021-05-06 11:36:03,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-06 11:36:03,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-05-06 11:36:03,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.0625) internal successors, (34), 32 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:03,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2021-05-06 11:36:03,060 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 33 [2021-05-06 11:36:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:03,060 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2021-05-06 11:36:03,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.8125) internal successors, (29), 15 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2021-05-06 11:36:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-06 11:36:03,061 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:03,061 INFO L523 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:03,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-06 11:36:03,061 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:03,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:03,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1084071560, now seen corresponding path program 3 times [2021-05-06 11:36:03,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:03,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055920890] [2021-05-06 11:36:03,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:03,073 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:03,085 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:03,092 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:03,097 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:03,105 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:03,115 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:03,116 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:03,120 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:03,132 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:03,134 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:03,155 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:03,169 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:03,171 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:03,177 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:03,191 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:03,193 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:03,204 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:03,206 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:03,218 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:03,233 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:03,239 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:03,245 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:03,250 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:03,255 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:03,263 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:03,264 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:03,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:03,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:03,753 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:03,753 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055920890] [2021-05-06 11:36:03,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2055920890] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:03,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:03,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-06 11:36:03,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45258101] [2021-05-06 11:36:03,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-06 11:36:03,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:03,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-06 11:36:03,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-05-06 11:36:03,755 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 16 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:04,540 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2021-05-06 11:36:04,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-06 11:36:04,540 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 16 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-05-06 11:36:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:04,541 INFO L225 Difference]: With dead ends: 42 [2021-05-06 11:36:04,541 INFO L226 Difference]: Without dead ends: 39 [2021-05-06 11:36:04,542 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 899.3ms TimeCoverageRelationStatistics Valid=292, Invalid=764, Unknown=0, NotChecked=0, Total=1056 [2021-05-06 11:36:04,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-06 11:36:04,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-05-06 11:36:04,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 34 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:04,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2021-05-06 11:36:04,550 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 35 [2021-05-06 11:36:04,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:04,550 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2021-05-06 11:36:04,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 16 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:04,551 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2021-05-06 11:36:04,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-06 11:36:04,551 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:04,551 INFO L523 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:04,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-06 11:36:04,552 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:04,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1876745586, now seen corresponding path program 4 times [2021-05-06 11:36:04,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:04,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781652154] [2021-05-06 11:36:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:04,562 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:04,563 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:04,569 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:04,582 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:04,590 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:04,597 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:04,611 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:04,614 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:04,625 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:04,627 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:04,638 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:04,651 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:04,652 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:04,656 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:04,657 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:04,660 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:04,677 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:04,680 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:04,707 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:04,725 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:04,729 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:04,736 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:04,741 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:04,747 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:04,755 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:04,757 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:04,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:04,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:04,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:05,334 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:05,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781652154] [2021-05-06 11:36:05,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1781652154] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:05,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:05,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-06 11:36:05,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107679466] [2021-05-06 11:36:05,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-06 11:36:05,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:05,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-06 11:36:05,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-05-06 11:36:05,336 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:06,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:06,202 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2021-05-06 11:36:06,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-06 11:36:06,203 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-05-06 11:36:06,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:06,203 INFO L225 Difference]: With dead ends: 44 [2021-05-06 11:36:06,203 INFO L226 Difference]: Without dead ends: 41 [2021-05-06 11:36:06,204 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1037.8ms TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2021-05-06 11:36:06,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-05-06 11:36:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-05-06 11:36:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-05-06 11:36:06,212 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 37 [2021-05-06 11:36:06,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:06,212 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-05-06 11:36:06,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-05-06 11:36:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-06 11:36:06,213 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:06,213 INFO L523 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:06,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-06 11:36:06,213 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:06,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:06,214 INFO L82 PathProgramCache]: Analyzing trace with hash -341294356, now seen corresponding path program 5 times [2021-05-06 11:36:06,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:06,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869838441] [2021-05-06 11:36:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:06,224 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:06,230 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:06,235 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:06,241 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:06,248 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:06,265 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:06,266 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:06,267 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:06,280 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:06,283 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:06,299 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:06,313 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:06,314 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:06,318 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:06,331 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:06,333 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:06,344 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:06,349 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:06,360 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:06,373 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:06,377 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:06,378 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:06,382 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:06,391 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:06,397 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:06,398 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:06,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:06,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:06,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:06,949 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:06,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869838441] [2021-05-06 11:36:06,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1869838441] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:06,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:06,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-06 11:36:06,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924235071] [2021-05-06 11:36:06,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-06 11:36:06,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:06,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-06 11:36:06,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2021-05-06 11:36:06,951 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:07,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:07,918 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2021-05-06 11:36:07,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-06 11:36:07,919 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-05-06 11:36:07,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:07,920 INFO L225 Difference]: With dead ends: 46 [2021-05-06 11:36:07,920 INFO L226 Difference]: Without dead ends: 43 [2021-05-06 11:36:07,921 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1066.9ms TimeCoverageRelationStatistics Valid=308, Invalid=1024, Unknown=0, NotChecked=0, Total=1332 [2021-05-06 11:36:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-06 11:36:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-05-06 11:36:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 38 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-05-06 11:36:07,930 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 39 [2021-05-06 11:36:07,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:07,930 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-05-06 11:36:07,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-05-06 11:36:07,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-06 11:36:07,931 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:07,931 INFO L523 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:07,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-06 11:36:07,931 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:07,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:07,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1573899802, now seen corresponding path program 6 times [2021-05-06 11:36:07,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:07,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176039846] [2021-05-06 11:36:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:07,939 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:07,945 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:07,952 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:07,958 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:07,966 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:07,971 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:07,983 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:07,986 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:07,997 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:07,999 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:08,009 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:08,024 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:08,025 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:08,039 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:08,040 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:08,042 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:08,053 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:08,055 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:08,075 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:08,089 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:08,095 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:08,096 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:08,100 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:08,116 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:08,125 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:08,126 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:08,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:08,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:08,728 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:08,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176039846] [2021-05-06 11:36:08,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [176039846] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:08,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:08,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-06 11:36:08,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523161307] [2021-05-06 11:36:08,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-06 11:36:08,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:08,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-06 11:36:08,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2021-05-06 11:36:08,729 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 20 states, 20 states have (on average 1.85) internal successors, (37), 19 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:09,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:09,673 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2021-05-06 11:36:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-06 11:36:09,673 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 19 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-05-06 11:36:09,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:09,674 INFO L225 Difference]: With dead ends: 48 [2021-05-06 11:36:09,674 INFO L226 Difference]: Without dead ends: 45 [2021-05-06 11:36:09,674 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1104.4ms TimeCoverageRelationStatistics Valid=316, Invalid=1166, Unknown=0, NotChecked=0, Total=1482 [2021-05-06 11:36:09,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-05-06 11:36:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2021-05-06 11:36:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.05) internal successors, (42), 40 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:09,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-05-06 11:36:09,684 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 41 [2021-05-06 11:36:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:09,685 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-05-06 11:36:09,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 19 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:09,685 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-05-06 11:36:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-06 11:36:09,685 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:09,685 INFO L523 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:09,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-06 11:36:09,686 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:09,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:09,686 INFO L82 PathProgramCache]: Analyzing trace with hash -696759712, now seen corresponding path program 7 times [2021-05-06 11:36:09,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:09,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047089511] [2021-05-06 11:36:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:09,698 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:09,699 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:09,704 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:09,713 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:09,721 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:09,728 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:09,729 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:09,731 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:09,745 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:09,757 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:09,774 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:09,787 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:09,788 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:09,792 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:09,793 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:09,795 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:09,807 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:09,810 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:09,831 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:09,846 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:09,850 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:09,855 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:09,860 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:09,865 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:09,873 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:09,874 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:10,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:10,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:10,499 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:10,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047089511] [2021-05-06 11:36:10,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2047089511] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:10,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:10,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-05-06 11:36:10,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003450350] [2021-05-06 11:36:10,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-06 11:36:10,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:10,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-06 11:36:10,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2021-05-06 11:36:10,500 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:11,642 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-05-06 11:36:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-06 11:36:11,643 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-05-06 11:36:11,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:11,643 INFO L225 Difference]: With dead ends: 50 [2021-05-06 11:36:11,643 INFO L226 Difference]: Without dead ends: 47 [2021-05-06 11:36:11,644 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 9 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 1246.6ms TimeCoverageRelationStatistics Valid=324, Invalid=1316, Unknown=0, NotChecked=0, Total=1640 [2021-05-06 11:36:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-06 11:36:11,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2021-05-06 11:36:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 42 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-05-06 11:36:11,655 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 43 [2021-05-06 11:36:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:11,655 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-05-06 11:36:11,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-05-06 11:36:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-06 11:36:11,656 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:11,656 INFO L523 BasicCegarLoop]: trace histogram [9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:11,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-06 11:36:11,656 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:11,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:11,656 INFO L82 PathProgramCache]: Analyzing trace with hash 421276762, now seen corresponding path program 8 times [2021-05-06 11:36:11,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:11,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198322064] [2021-05-06 11:36:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:11,664 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:11,664 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:11,668 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:11,676 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:11,682 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:11,686 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:11,697 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:11,699 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:11,708 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:11,710 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:11,717 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:11,730 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:11,731 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:11,734 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:11,735 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:11,737 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:11,746 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:11,749 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:11,766 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:11,779 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:11,782 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:11,788 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:11,794 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:11,799 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:11,808 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:11,808 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:12,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:12,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:12,462 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:12,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198322064] [2021-05-06 11:36:12,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1198322064] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:12,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:12,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-06 11:36:12,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153469709] [2021-05-06 11:36:12,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-06 11:36:12,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:12,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-06 11:36:12,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2021-05-06 11:36:12,463 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 21 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:13,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:13,633 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2021-05-06 11:36:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-06 11:36:13,633 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 21 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-05-06 11:36:13,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:13,634 INFO L225 Difference]: With dead ends: 52 [2021-05-06 11:36:13,634 INFO L226 Difference]: Without dead ends: 49 [2021-05-06 11:36:13,635 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1283.8ms TimeCoverageRelationStatistics Valid=332, Invalid=1474, Unknown=0, NotChecked=0, Total=1806 [2021-05-06 11:36:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-06 11:36:13,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2021-05-06 11:36:13,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.0454545454545454) internal successors, (46), 44 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:13,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2021-05-06 11:36:13,643 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 45 [2021-05-06 11:36:13,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:13,644 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2021-05-06 11:36:13,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 21 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:13,644 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2021-05-06 11:36:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-06 11:36:13,645 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:13,645 INFO L523 BasicCegarLoop]: trace histogram [10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:13,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-06 11:36:13,646 INFO L428 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:13,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1112504276, now seen corresponding path program 9 times [2021-05-06 11:36:13,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:13,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699837277] [2021-05-06 11:36:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:13,654 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:13,659 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:13,663 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:13,667 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:13,674 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:13,677 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:13,686 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:13,688 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:13,695 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:13,697 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:13,720 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:13,735 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:13,736 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:13,739 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:13,748 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:13,749 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:13,757 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:13,759 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:13,771 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:13,783 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:13,786 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:13,790 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:13,794 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:13,798 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:13,804 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:13,805 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:14,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:14,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:14,600 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:14,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699837277] [2021-05-06 11:36:14,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1699837277] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:14,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:14,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-05-06 11:36:14,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409291413] [2021-05-06 11:36:14,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-06 11:36:14,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:14,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-06 11:36:14,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=514, Unknown=0, NotChecked=0, Total=650 [2021-05-06 11:36:14,602 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand has 23 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:16,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:16,004 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-05-06 11:36:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-06 11:36:16,005 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2021-05-06 11:36:16,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:16,005 INFO L225 Difference]: With dead ends: 54 [2021-05-06 11:36:16,005 INFO L226 Difference]: Without dead ends: 51 [2021-05-06 11:36:16,006 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 11 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1503.2ms TimeCoverageRelationStatistics Valid=340, Invalid=1640, Unknown=0, NotChecked=0, Total=1980 [2021-05-06 11:36:16,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-06 11:36:16,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2021-05-06 11:36:16,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 46 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:16,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-05-06 11:36:16,017 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 47 [2021-05-06 11:36:16,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:16,017 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-05-06 11:36:16,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:16,017 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-05-06 11:36:16,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-06 11:36:16,017 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:16,017 INFO L523 BasicCegarLoop]: trace histogram [11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:16,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-06 11:36:16,018 INFO L428 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:16,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:16,018 INFO L82 PathProgramCache]: Analyzing trace with hash -337785650, now seen corresponding path program 10 times [2021-05-06 11:36:16,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:16,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721112840] [2021-05-06 11:36:16,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:16,027 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:16,032 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:16,036 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:16,040 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:16,046 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:16,051 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:16,052 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:16,054 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:16,064 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:16,066 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:16,083 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:16,095 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:16,096 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:16,100 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:16,101 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:16,102 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:16,112 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:16,114 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:16,132 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:16,145 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:16,147 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:16,152 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:16,156 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:16,160 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:16,167 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:16,167 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:16,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:16,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:16,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:16,949 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:16,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721112840] [2021-05-06 11:36:16,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1721112840] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:16,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:16,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-06 11:36:16,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101403747] [2021-05-06 11:36:16,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-06 11:36:16,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:16,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-06 11:36:16,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2021-05-06 11:36:16,951 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 24 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:18,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:18,261 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2021-05-06 11:36:18,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-06 11:36:18,261 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-05-06 11:36:18,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:18,262 INFO L225 Difference]: With dead ends: 56 [2021-05-06 11:36:18,262 INFO L226 Difference]: Without dead ends: 53 [2021-05-06 11:36:18,262 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 12 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1522.6ms TimeCoverageRelationStatistics Valid=348, Invalid=1814, Unknown=0, NotChecked=0, Total=2162 [2021-05-06 11:36:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-05-06 11:36:18,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2021-05-06 11:36:18,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 48 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:18,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2021-05-06 11:36:18,276 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 49 [2021-05-06 11:36:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:18,276 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2021-05-06 11:36:18,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:18,276 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2021-05-06 11:36:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-06 11:36:18,276 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:18,276 INFO L523 BasicCegarLoop]: trace histogram [12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:18,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-06 11:36:18,277 INFO L428 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:18,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:18,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1797966664, now seen corresponding path program 11 times [2021-05-06 11:36:18,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:18,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492478530] [2021-05-06 11:36:18,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:18,284 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:18,288 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:18,304 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:18,309 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:18,317 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:18,321 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:18,322 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:18,324 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:18,334 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:18,336 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:18,356 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:18,369 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:18,369 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:18,372 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:18,381 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:18,383 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:18,392 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:18,393 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:18,401 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:18,413 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:18,415 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:18,420 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:18,423 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:18,428 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:18,435 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:18,435 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:18,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:18,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:18,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:19,267 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:19,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492478530] [2021-05-06 11:36:19,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1492478530] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:19,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:19,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-05-06 11:36:19,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671986774] [2021-05-06 11:36:19,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-06 11:36:19,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:19,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-06 11:36:19,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2021-05-06 11:36:19,268 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand has 25 states, 25 states have (on average 1.88) internal successors, (47), 24 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:20,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:20,650 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2021-05-06 11:36:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-06 11:36:20,651 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.88) internal successors, (47), 24 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-05-06 11:36:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:20,651 INFO L225 Difference]: With dead ends: 58 [2021-05-06 11:36:20,651 INFO L226 Difference]: Without dead ends: 55 [2021-05-06 11:36:20,652 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 13 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1596.2ms TimeCoverageRelationStatistics Valid=356, Invalid=1996, Unknown=0, NotChecked=0, Total=2352 [2021-05-06 11:36:20,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-05-06 11:36:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-05-06 11:36:20,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.04) internal successors, (52), 50 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:20,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2021-05-06 11:36:20,665 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 51 [2021-05-06 11:36:20,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:20,665 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2021-05-06 11:36:20,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.88) internal successors, (47), 24 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:20,665 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2021-05-06 11:36:20,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-06 11:36:20,665 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:20,665 INFO L523 BasicCegarLoop]: trace histogram [13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:20,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-06 11:36:20,666 INFO L428 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:20,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:20,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1261572930, now seen corresponding path program 12 times [2021-05-06 11:36:20,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:20,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165462847] [2021-05-06 11:36:20,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:20,673 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:20,678 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:20,683 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:20,687 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:20,694 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:20,699 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:20,708 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:20,721 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:20,730 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:20,732 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:20,741 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:20,756 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:20,757 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:20,761 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:20,762 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:20,763 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:20,772 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:20,775 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:20,793 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:20,809 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:20,816 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:20,821 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:20,825 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:20,829 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:20,836 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:20,836 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:21,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:21,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:21,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:21,697 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:21,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165462847] [2021-05-06 11:36:21,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1165462847] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:21,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:21,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-05-06 11:36:21,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135601085] [2021-05-06 11:36:21,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-06 11:36:21,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:21,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-06 11:36:21,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-05-06 11:36:21,700 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 25 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:23,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:23,330 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2021-05-06 11:36:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-06 11:36:23,331 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 25 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-05-06 11:36:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:23,331 INFO L225 Difference]: With dead ends: 60 [2021-05-06 11:36:23,331 INFO L226 Difference]: Without dead ends: 57 [2021-05-06 11:36:23,332 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 14 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 1732.6ms TimeCoverageRelationStatistics Valid=364, Invalid=2186, Unknown=0, NotChecked=0, Total=2550 [2021-05-06 11:36:23,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-05-06 11:36:23,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-05-06 11:36:23,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2021-05-06 11:36:23,344 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 53 [2021-05-06 11:36:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:23,344 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2021-05-06 11:36:23,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 25 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2021-05-06 11:36:23,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-06 11:36:23,344 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:23,344 INFO L523 BasicCegarLoop]: trace histogram [14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:23,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-05-06 11:36:23,345 INFO L428 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:23,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:23,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1183270076, now seen corresponding path program 13 times [2021-05-06 11:36:23,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:23,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172852038] [2021-05-06 11:36:23,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:23,351 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:23,351 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:23,355 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:23,363 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:23,369 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:23,373 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:23,373 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:23,374 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:23,390 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:23,392 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:23,407 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:23,420 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:23,421 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:23,424 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:23,438 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:23,440 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:23,449 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:23,451 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:23,462 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:23,478 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:23,482 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:23,482 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:23,487 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:23,496 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:23,505 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:23,505 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:23,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:23,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:23,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:24,479 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:24,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172852038] [2021-05-06 11:36:24,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [172852038] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:24,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:24,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-05-06 11:36:24,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629754464] [2021-05-06 11:36:24,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-06 11:36:24,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:24,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-06 11:36:24,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2021-05-06 11:36:24,480 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 27 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 26 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:26,161 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2021-05-06 11:36:26,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-06 11:36:26,161 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 26 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2021-05-06 11:36:26,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:26,162 INFO L225 Difference]: With dead ends: 62 [2021-05-06 11:36:26,162 INFO L226 Difference]: Without dead ends: 59 [2021-05-06 11:36:26,163 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 15 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 1824.9ms TimeCoverageRelationStatistics Valid=372, Invalid=2384, Unknown=0, NotChecked=0, Total=2756 [2021-05-06 11:36:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-06 11:36:26,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2021-05-06 11:36:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 54 states have (on average 1.037037037037037) internal successors, (56), 54 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2021-05-06 11:36:26,178 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 55 [2021-05-06 11:36:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:26,178 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2021-05-06 11:36:26,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 26 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:26,178 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2021-05-06 11:36:26,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-06 11:36:26,179 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:26,179 INFO L523 BasicCegarLoop]: trace histogram [15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:26,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-05-06 11:36:26,179 INFO L428 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:26,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1051328586, now seen corresponding path program 14 times [2021-05-06 11:36:26,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:26,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136982795] [2021-05-06 11:36:26,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:26,186 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:26,186 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:26,190 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:26,200 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:26,207 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:26,213 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:26,214 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:26,215 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:26,222 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:26,224 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:26,241 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:26,254 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:26,255 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:26,259 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:26,260 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:26,269 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:26,278 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:26,280 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:26,295 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:26,307 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:26,310 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:26,311 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:26,314 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:26,322 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:26,329 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:26,330 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:26,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:26,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:26,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:27,401 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:27,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136982795] [2021-05-06 11:36:27,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1136982795] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:27,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:27,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-06 11:36:27,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761405885] [2021-05-06 11:36:27,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-06 11:36:27,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:27,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-06 11:36:27,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=779, Unknown=0, NotChecked=0, Total=930 [2021-05-06 11:36:27,403 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand has 28 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 27 states have internal predecessors, (53), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:29,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:29,204 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2021-05-06 11:36:29,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-06 11:36:29,205 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 27 states have internal predecessors, (53), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-05-06 11:36:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:29,205 INFO L225 Difference]: With dead ends: 64 [2021-05-06 11:36:29,206 INFO L226 Difference]: Without dead ends: 61 [2021-05-06 11:36:29,206 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 16 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 1998.9ms TimeCoverageRelationStatistics Valid=380, Invalid=2590, Unknown=0, NotChecked=0, Total=2970 [2021-05-06 11:36:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-05-06 11:36:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2021-05-06 11:36:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 56 states have (on average 1.0357142857142858) internal successors, (58), 56 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2021-05-06 11:36:29,220 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 57 [2021-05-06 11:36:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:29,220 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2021-05-06 11:36:29,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 27 states have internal predecessors, (53), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2021-05-06 11:36:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-06 11:36:29,221 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:29,221 INFO L523 BasicCegarLoop]: trace histogram [16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:29,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-05-06 11:36:29,221 INFO L428 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:29,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:29,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1016994768, now seen corresponding path program 15 times [2021-05-06 11:36:29,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:29,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169908239] [2021-05-06 11:36:29,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:29,237 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:29,243 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:29,249 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:29,254 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:29,263 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:29,269 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:29,282 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:29,284 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:29,295 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:29,298 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:29,308 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:29,324 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:29,325 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:29,329 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:29,330 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:29,332 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:29,341 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:29,343 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:29,358 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:29,371 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:29,381 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:29,382 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:29,386 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:29,394 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:29,401 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:29,401 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:29,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:29,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:29,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:30,592 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:30,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169908239] [2021-05-06 11:36:30,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1169908239] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:30,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:30,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-05-06 11:36:30,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166296419] [2021-05-06 11:36:30,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-06 11:36:30,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:30,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-06 11:36:30,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2021-05-06 11:36:30,594 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 29 states, 29 states have (on average 1.896551724137931) internal successors, (55), 28 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:32,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:32,527 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2021-05-06 11:36:32,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-06 11:36:32,527 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.896551724137931) internal successors, (55), 28 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-05-06 11:36:32,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:32,528 INFO L225 Difference]: With dead ends: 66 [2021-05-06 11:36:32,528 INFO L226 Difference]: Without dead ends: 63 [2021-05-06 11:36:32,529 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 4 SyntacticMatches, 17 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 2214.9ms TimeCoverageRelationStatistics Valid=388, Invalid=2804, Unknown=0, NotChecked=0, Total=3192 [2021-05-06 11:36:32,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-05-06 11:36:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2021-05-06 11:36:32,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 58 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2021-05-06 11:36:32,548 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 59 [2021-05-06 11:36:32,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:32,548 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2021-05-06 11:36:32,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 1.896551724137931) internal successors, (55), 28 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:32,548 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2021-05-06 11:36:32,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-06 11:36:32,548 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:32,549 INFO L523 BasicCegarLoop]: trace histogram [17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:32,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-05-06 11:36:32,549 INFO L428 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:32,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:32,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1913033258, now seen corresponding path program 16 times [2021-05-06 11:36:32,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:32,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441899940] [2021-05-06 11:36:32,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:32,556 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:32,556 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:32,561 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:32,570 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:32,578 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:32,582 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:32,583 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:32,585 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:32,594 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:32,596 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:32,615 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:32,630 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:32,631 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:32,634 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:32,635 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:32,637 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:32,646 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:32,649 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:32,666 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:32,679 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:32,685 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:32,686 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:32,692 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:32,702 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:32,711 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:32,712 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:32,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:32,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:32,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:32,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:32,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:32,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:32,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:33,873 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:33,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441899940] [2021-05-06 11:36:33,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [441899940] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:33,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:33,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-05-06 11:36:33,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892619585] [2021-05-06 11:36:33,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-06 11:36:33,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:33,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-06 11:36:33,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2021-05-06 11:36:33,875 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand has 30 states, 30 states have (on average 1.9) internal successors, (57), 29 states have internal predecessors, (57), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:35,834 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2021-05-06 11:36:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-06 11:36:35,835 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.9) internal successors, (57), 29 states have internal predecessors, (57), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2021-05-06 11:36:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:35,835 INFO L225 Difference]: With dead ends: 68 [2021-05-06 11:36:35,835 INFO L226 Difference]: Without dead ends: 65 [2021-05-06 11:36:35,836 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 4 SyntacticMatches, 18 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 2266.3ms TimeCoverageRelationStatistics Valid=396, Invalid=3026, Unknown=0, NotChecked=0, Total=3422 [2021-05-06 11:36:35,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-05-06 11:36:35,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2021-05-06 11:36:35,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 60 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:35,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2021-05-06 11:36:35,858 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 61 [2021-05-06 11:36:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:35,858 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2021-05-06 11:36:35,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.9) internal successors, (57), 29 states have internal predecessors, (57), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2021-05-06 11:36:35,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-06 11:36:35,858 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:35,858 INFO L523 BasicCegarLoop]: trace histogram [18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:35,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-05-06 11:36:35,859 INFO L428 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:35,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:35,859 INFO L82 PathProgramCache]: Analyzing trace with hash 171420068, now seen corresponding path program 17 times [2021-05-06 11:36:35,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:35,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495476091] [2021-05-06 11:36:35,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:35,865 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:35,870 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:35,875 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:35,879 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:35,885 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:35,889 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:35,890 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:35,892 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:35,900 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:35,902 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:35,917 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:35,930 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:35,931 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:35,933 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:35,942 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:35,943 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:35,951 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:35,952 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:35,960 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:35,972 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:35,974 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:35,979 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:35,982 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:35,986 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:35,993 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:35,994 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:36,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:36,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:36,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:37,342 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:37,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495476091] [2021-05-06 11:36:37,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [495476091] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:37,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:37,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-05-06 11:36:37,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495085546] [2021-05-06 11:36:37,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-06 11:36:37,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:37,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-06 11:36:37,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=962, Unknown=0, NotChecked=0, Total=1122 [2021-05-06 11:36:37,344 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:39,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:39,600 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2021-05-06 11:36:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-06 11:36:39,601 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-05-06 11:36:39,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:39,601 INFO L225 Difference]: With dead ends: 70 [2021-05-06 11:36:39,601 INFO L226 Difference]: Without dead ends: 67 [2021-05-06 11:36:39,602 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 19 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 2514.4ms TimeCoverageRelationStatistics Valid=404, Invalid=3256, Unknown=0, NotChecked=0, Total=3660 [2021-05-06 11:36:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-05-06 11:36:39,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2021-05-06 11:36:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.032258064516129) internal successors, (64), 62 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2021-05-06 11:36:39,621 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 63 [2021-05-06 11:36:39,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:39,621 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2021-05-06 11:36:39,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:39,621 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2021-05-06 11:36:39,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-06 11:36:39,622 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:39,622 INFO L523 BasicCegarLoop]: trace histogram [19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:39,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-05-06 11:36:39,622 INFO L428 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:39,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:39,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1518389918, now seen corresponding path program 18 times [2021-05-06 11:36:39,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:39,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118325905] [2021-05-06 11:36:39,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:39,641 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:39,642 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:39,647 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:39,656 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:39,663 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:39,666 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:39,676 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:39,678 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:39,686 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:39,688 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:39,696 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:39,709 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:39,710 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:39,713 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:39,723 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:39,724 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:39,733 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:39,735 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:39,743 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:39,756 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:39,763 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:39,764 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:39,768 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:39,776 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:39,783 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:39,784 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:39,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:39,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:39,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:40,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:41,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:41,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:41,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:41,136 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:41,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118325905] [2021-05-06 11:36:41,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [118325905] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:41,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:41,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-05-06 11:36:41,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115343743] [2021-05-06 11:36:41,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-06 11:36:41,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:41,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-06 11:36:41,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1027, Unknown=0, NotChecked=0, Total=1190 [2021-05-06 11:36:41,139 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 32 states, 32 states have (on average 1.90625) internal successors, (61), 31 states have internal predecessors, (61), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:43,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:43,443 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2021-05-06 11:36:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-06 11:36:43,443 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.90625) internal successors, (61), 31 states have internal predecessors, (61), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2021-05-06 11:36:43,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:43,444 INFO L225 Difference]: With dead ends: 72 [2021-05-06 11:36:43,444 INFO L226 Difference]: Without dead ends: 69 [2021-05-06 11:36:43,445 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 20 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 2551.9ms TimeCoverageRelationStatistics Valid=412, Invalid=3494, Unknown=0, NotChecked=0, Total=3906 [2021-05-06 11:36:43,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-05-06 11:36:43,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2021-05-06 11:36:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.03125) internal successors, (66), 64 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2021-05-06 11:36:43,466 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 65 [2021-05-06 11:36:43,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:43,466 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2021-05-06 11:36:43,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 1.90625) internal successors, (61), 31 states have internal predecessors, (61), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:43,466 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2021-05-06 11:36:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-05-06 11:36:43,466 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:43,466 INFO L523 BasicCegarLoop]: trace histogram [20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:43,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-05-06 11:36:43,466 INFO L428 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:43,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:43,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1123707624, now seen corresponding path program 19 times [2021-05-06 11:36:43,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:43,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004616089] [2021-05-06 11:36:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:43,473 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:43,474 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:43,477 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:43,489 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:43,496 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:43,500 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:43,512 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:43,514 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:43,524 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:43,527 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:43,536 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:43,552 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:43,553 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:43,556 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:43,557 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:43,558 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:43,567 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:43,569 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:43,588 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:43,603 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:43,606 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:43,611 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:43,615 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:43,620 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:43,628 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:43,629 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:43,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:43,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:43,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:43,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:43,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:43,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:43,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:43,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:43,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:43,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:43,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:44,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:45,009 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:45,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004616089] [2021-05-06 11:36:45,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2004616089] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:45,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:45,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-05-06 11:36:45,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297480681] [2021-05-06 11:36:45,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-06 11:36:45,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:45,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-06 11:36:45,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2021-05-06 11:36:45,011 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 33 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 32 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:47,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:47,321 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2021-05-06 11:36:47,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-06 11:36:47,322 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 32 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2021-05-06 11:36:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:47,322 INFO L225 Difference]: With dead ends: 74 [2021-05-06 11:36:47,322 INFO L226 Difference]: Without dead ends: 71 [2021-05-06 11:36:47,323 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 4 SyntacticMatches, 21 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 2663.2ms TimeCoverageRelationStatistics Valid=420, Invalid=3740, Unknown=0, NotChecked=0, Total=4160 [2021-05-06 11:36:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-05-06 11:36:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2021-05-06 11:36:47,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 66 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2021-05-06 11:36:47,345 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 67 [2021-05-06 11:36:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:47,346 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2021-05-06 11:36:47,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 32 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2021-05-06 11:36:47,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-06 11:36:47,346 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:47,346 INFO L523 BasicCegarLoop]: trace histogram [21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:47,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-05-06 11:36:47,346 INFO L428 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:47,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:47,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1853773550, now seen corresponding path program 20 times [2021-05-06 11:36:47,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:47,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538024629] [2021-05-06 11:36:47,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:47,352 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:47,368 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:47,373 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:47,378 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:47,386 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:47,390 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:47,391 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:47,392 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:47,401 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:47,403 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:47,420 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:47,435 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:47,437 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:47,441 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:47,442 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:47,443 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:47,452 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:47,454 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:47,471 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:47,486 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:47,489 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:47,494 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:47,498 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:47,501 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:47,513 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:47,514 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:47,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:47,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:47,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:47,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:48,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:49,041 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:49,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538024629] [2021-05-06 11:36:49,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [538024629] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:49,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:49,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-05-06 11:36:49,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400624308] [2021-05-06 11:36:49,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-06 11:36:49,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:49,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-06 11:36:49,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1163, Unknown=0, NotChecked=0, Total=1332 [2021-05-06 11:36:49,042 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand has 34 states, 34 states have (on average 1.911764705882353) internal successors, (65), 33 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:51,521 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2021-05-06 11:36:51,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-06 11:36:51,522 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.911764705882353) internal successors, (65), 33 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2021-05-06 11:36:51,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:51,522 INFO L225 Difference]: With dead ends: 76 [2021-05-06 11:36:51,522 INFO L226 Difference]: Without dead ends: 73 [2021-05-06 11:36:51,523 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 4 SyntacticMatches, 22 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 2894.1ms TimeCoverageRelationStatistics Valid=428, Invalid=3994, Unknown=0, NotChecked=0, Total=4422 [2021-05-06 11:36:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-05-06 11:36:51,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2021-05-06 11:36:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 68 states have (on average 1.0294117647058822) internal successors, (70), 68 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:51,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2021-05-06 11:36:51,551 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 69 [2021-05-06 11:36:51,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:51,551 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2021-05-06 11:36:51,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.911764705882353) internal successors, (65), 33 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2021-05-06 11:36:51,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-06 11:36:51,552 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:51,552 INFO L523 BasicCegarLoop]: trace histogram [22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:51,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-05-06 11:36:51,552 INFO L428 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:51,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:51,552 INFO L82 PathProgramCache]: Analyzing trace with hash 927508108, now seen corresponding path program 21 times [2021-05-06 11:36:51,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:51,553 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135701269] [2021-05-06 11:36:51,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:51,560 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:51,564 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:51,568 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:51,572 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:51,579 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:51,585 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:51,594 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:51,595 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:51,603 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:51,605 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:51,614 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:51,627 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:51,630 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:51,633 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:51,642 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:51,657 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:51,668 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:51,671 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:51,679 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:51,692 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:51,697 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:51,698 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:51,701 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:51,709 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:51,716 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:51,717 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:51,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:51,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:51,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:51,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:51,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:51,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:52,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:53,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:53,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:53,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:53,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:53,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:53,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:53,380 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:53,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135701269] [2021-05-06 11:36:53,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1135701269] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:53,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:53,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-06 11:36:53,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209834836] [2021-05-06 11:36:53,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-06 11:36:53,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:53,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-06 11:36:53,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1234, Unknown=0, NotChecked=0, Total=1406 [2021-05-06 11:36:53,382 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 34 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:56,257 INFO L93 Difference]: Finished difference Result 78 states and 79 transitions. [2021-05-06 11:36:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-06 11:36:56,257 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 34 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2021-05-06 11:36:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:56,258 INFO L225 Difference]: With dead ends: 78 [2021-05-06 11:36:56,258 INFO L226 Difference]: Without dead ends: 75 [2021-05-06 11:36:56,258 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 4 SyntacticMatches, 23 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 3152.9ms TimeCoverageRelationStatistics Valid=436, Invalid=4256, Unknown=0, NotChecked=0, Total=4692 [2021-05-06 11:36:56,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-05-06 11:36:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2021-05-06 11:36:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.0285714285714285) internal successors, (72), 70 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2021-05-06 11:36:56,285 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 71 [2021-05-06 11:36:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:56,285 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2021-05-06 11:36:56,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 34 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2021-05-06 11:36:56,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-05-06 11:36:56,286 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:56,286 INFO L523 BasicCegarLoop]: trace histogram [23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:56,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-05-06 11:36:56,286 INFO L428 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:56,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:56,287 INFO L82 PathProgramCache]: Analyzing trace with hash -2025443962, now seen corresponding path program 22 times [2021-05-06 11:36:56,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:56,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990090963] [2021-05-06 11:36:56,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:56,293 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:36:56,297 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:56,301 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:56,305 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:36:56,312 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:56,318 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:56,327 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:56,330 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:56,337 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:56,339 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:56,346 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:56,359 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:56,360 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:56,362 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:36:56,363 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:56,365 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:56,372 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:36:56,374 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:36:56,390 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:36:56,402 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:56,404 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:36:56,405 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:56,409 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:56,417 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:36:56,423 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:56,424 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:36:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:56,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:56,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:56,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:56,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:57,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:58,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:58,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:58,117 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:58,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990090963] [2021-05-06 11:36:58,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [990090963] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:58,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:58,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-05-06 11:36:58,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595496965] [2021-05-06 11:36:58,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-06 11:36:58,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:58,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-06 11:36:58,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1307, Unknown=0, NotChecked=0, Total=1482 [2021-05-06 11:36:58,119 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand has 36 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 35 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:01,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:01,082 INFO L93 Difference]: Finished difference Result 80 states and 81 transitions. [2021-05-06 11:37:01,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-06 11:37:01,083 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 35 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2021-05-06 11:37:01,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:01,083 INFO L225 Difference]: With dead ends: 80 [2021-05-06 11:37:01,083 INFO L226 Difference]: Without dead ends: 77 [2021-05-06 11:37:01,084 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 4 SyntacticMatches, 24 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 3215.5ms TimeCoverageRelationStatistics Valid=444, Invalid=4526, Unknown=0, NotChecked=0, Total=4970 [2021-05-06 11:37:01,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-05-06 11:37:01,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2021-05-06 11:37:01,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:01,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2021-05-06 11:37:01,112 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 73 [2021-05-06 11:37:01,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:01,112 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2021-05-06 11:37:01,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 35 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:01,112 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2021-05-06 11:37:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-05-06 11:37:01,113 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:01,113 INFO L523 BasicCegarLoop]: trace histogram [24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:01,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-05-06 11:37:01,113 INFO L428 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:01,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:01,113 INFO L82 PathProgramCache]: Analyzing trace with hash -839000576, now seen corresponding path program 23 times [2021-05-06 11:37:01,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:01,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641349251] [2021-05-06 11:37:01,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:01,120 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:01,121 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:01,124 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:01,132 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:01,138 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:01,142 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:01,142 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:01,143 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:01,152 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:01,154 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:01,169 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:01,182 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:01,183 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:01,185 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:01,194 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:01,195 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:01,219 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:01,222 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:01,232 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:01,245 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:01,247 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:01,252 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:01,255 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:01,259 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:01,266 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:01,267 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:01,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:01,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:01,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:02,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:03,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:03,064 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:03,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641349251] [2021-05-06 11:37:03,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1641349251] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:03,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:03,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-05-06 11:37:03,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722500920] [2021-05-06 11:37:03,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-06 11:37:03,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:03,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-06 11:37:03,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1382, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 11:37:03,066 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 36 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:06,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:06,084 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2021-05-06 11:37:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-06 11:37:06,084 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 36 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2021-05-06 11:37:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:06,085 INFO L225 Difference]: With dead ends: 82 [2021-05-06 11:37:06,085 INFO L226 Difference]: Without dead ends: 79 [2021-05-06 11:37:06,085 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 4 SyntacticMatches, 25 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 3386.5ms TimeCoverageRelationStatistics Valid=452, Invalid=4804, Unknown=0, NotChecked=0, Total=5256 [2021-05-06 11:37:06,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-05-06 11:37:06,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2021-05-06 11:37:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.027027027027027) internal successors, (76), 74 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2021-05-06 11:37:06,114 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 75 [2021-05-06 11:37:06,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:06,115 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2021-05-06 11:37:06,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 36 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:06,115 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2021-05-06 11:37:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-05-06 11:37:06,115 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:06,115 INFO L523 BasicCegarLoop]: trace histogram [25, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:06,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-05-06 11:37:06,115 INFO L428 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:06,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:06,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1166759930, now seen corresponding path program 24 times [2021-05-06 11:37:06,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:06,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088510034] [2021-05-06 11:37:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:06,121 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:06,126 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:06,129 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:06,133 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:06,140 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:06,143 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:06,144 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:06,145 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:06,158 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:06,160 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:06,176 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:06,189 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:06,190 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:06,193 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:06,202 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:06,208 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:06,215 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:06,217 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:06,225 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:06,238 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:06,240 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:06,245 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:06,251 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:06,255 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:06,262 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:06,262 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:06,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:06,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:06,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:07,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:08,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:08,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:08,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:08,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:08,237 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:08,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088510034] [2021-05-06 11:37:08,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2088510034] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:08,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:08,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-05-06 11:37:08,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697429088] [2021-05-06 11:37:08,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-06 11:37:08,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:08,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-06 11:37:08,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1459, Unknown=0, NotChecked=0, Total=1640 [2021-05-06 11:37:08,238 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand has 38 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 37 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:11,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:11,551 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2021-05-06 11:37:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-06 11:37:11,552 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 37 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2021-05-06 11:37:11,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:11,552 INFO L225 Difference]: With dead ends: 84 [2021-05-06 11:37:11,552 INFO L226 Difference]: Without dead ends: 81 [2021-05-06 11:37:11,553 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 4 SyntacticMatches, 26 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 3660.1ms TimeCoverageRelationStatistics Valid=460, Invalid=5090, Unknown=0, NotChecked=0, Total=5550 [2021-05-06 11:37:11,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-05-06 11:37:11,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2021-05-06 11:37:11,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 76 states have (on average 1.0263157894736843) internal successors, (78), 76 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2021-05-06 11:37:11,587 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 77 [2021-05-06 11:37:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:11,587 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2021-05-06 11:37:11,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 37 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2021-05-06 11:37:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-06 11:37:11,587 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:11,588 INFO L523 BasicCegarLoop]: trace histogram [26, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:11,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-05-06 11:37:11,588 INFO L428 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:11,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:11,588 INFO L82 PathProgramCache]: Analyzing trace with hash 262290292, now seen corresponding path program 25 times [2021-05-06 11:37:11,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:11,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991955977] [2021-05-06 11:37:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:11,593 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:11,600 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:11,603 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:11,607 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:11,614 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:11,619 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:11,628 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:11,629 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:11,638 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:11,639 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:11,647 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:11,659 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:11,660 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:11,662 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:11,663 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:11,665 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:11,674 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:11,675 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:11,693 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:11,706 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:11,708 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:11,713 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:11,716 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:11,720 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:11,727 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:11,727 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:11,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:11,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:11,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:11,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:11,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:11,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:12,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:13,662 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:13,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991955977] [2021-05-06 11:37:13,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1991955977] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:13,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:13,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-05-06 11:37:13,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616737298] [2021-05-06 11:37:13,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-06 11:37:13,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:13,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-06 11:37:13,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1538, Unknown=0, NotChecked=0, Total=1722 [2021-05-06 11:37:13,663 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand has 39 states, 39 states have (on average 1.9230769230769231) internal successors, (75), 38 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:17,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:17,150 INFO L93 Difference]: Finished difference Result 86 states and 87 transitions. [2021-05-06 11:37:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-06 11:37:17,151 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.9230769230769231) internal successors, (75), 38 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 79 [2021-05-06 11:37:17,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:17,151 INFO L225 Difference]: With dead ends: 86 [2021-05-06 11:37:17,151 INFO L226 Difference]: Without dead ends: 83 [2021-05-06 11:37:17,152 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 4 SyntacticMatches, 27 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 3704.6ms TimeCoverageRelationStatistics Valid=468, Invalid=5384, Unknown=0, NotChecked=0, Total=5852 [2021-05-06 11:37:17,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-05-06 11:37:17,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2021-05-06 11:37:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 78 states have (on average 1.0256410256410255) internal successors, (80), 78 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 83 transitions. [2021-05-06 11:37:17,189 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 83 transitions. Word has length 79 [2021-05-06 11:37:17,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:17,189 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 83 transitions. [2021-05-06 11:37:17,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 1.9230769230769231) internal successors, (75), 38 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 83 transitions. [2021-05-06 11:37:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-06 11:37:17,190 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:17,190 INFO L523 BasicCegarLoop]: trace histogram [27, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:17,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-05-06 11:37:17,190 INFO L428 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:17,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:17,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1349638034, now seen corresponding path program 26 times [2021-05-06 11:37:17,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:17,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344971978] [2021-05-06 11:37:17,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:17,196 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:17,201 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:17,207 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:17,211 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:17,218 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:17,221 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:17,222 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:17,224 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:17,232 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:17,234 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:17,251 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:17,267 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:17,268 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:17,273 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:17,283 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:17,285 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:17,292 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:17,294 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:17,302 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:17,314 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:17,317 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:17,317 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:17,321 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:17,329 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:17,336 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:17,336 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:17,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:17,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:17,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:18,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:19,408 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:19,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344971978] [2021-05-06 11:37:19,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [344971978] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:19,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:19,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-05-06 11:37:19,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333746004] [2021-05-06 11:37:19,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-06 11:37:19,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:19,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-06 11:37:19,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1619, Unknown=0, NotChecked=0, Total=1806 [2021-05-06 11:37:19,409 INFO L87 Difference]: Start difference. First operand 82 states and 83 transitions. Second operand has 40 states, 40 states have (on average 1.925) internal successors, (77), 39 states have internal predecessors, (77), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:23,041 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2021-05-06 11:37:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-06 11:37:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.925) internal successors, (77), 39 states have internal predecessors, (77), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2021-05-06 11:37:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:23,041 INFO L225 Difference]: With dead ends: 88 [2021-05-06 11:37:23,041 INFO L226 Difference]: Without dead ends: 85 [2021-05-06 11:37:23,042 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 4 SyntacticMatches, 28 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1349 ImplicationChecksByTransitivity, 3879.2ms TimeCoverageRelationStatistics Valid=476, Invalid=5686, Unknown=0, NotChecked=0, Total=6162 [2021-05-06 11:37:23,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-05-06 11:37:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2021-05-06 11:37:23,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.025) internal successors, (82), 80 states have internal predecessors, (82), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2021-05-06 11:37:23,080 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 81 [2021-05-06 11:37:23,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:23,080 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2021-05-06 11:37:23,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.925) internal successors, (77), 39 states have internal predecessors, (77), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:23,080 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2021-05-06 11:37:23,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-05-06 11:37:23,081 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:23,081 INFO L523 BasicCegarLoop]: trace histogram [28, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:23,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-05-06 11:37:23,081 INFO L428 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:23,082 INFO L82 PathProgramCache]: Analyzing trace with hash 70434536, now seen corresponding path program 27 times [2021-05-06 11:37:23,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:23,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211074094] [2021-05-06 11:37:23,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:23,088 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:23,093 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:23,097 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:23,102 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:23,108 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:23,111 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:23,120 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:23,122 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:23,131 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:23,133 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:23,143 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:23,163 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:23,164 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:23,167 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:23,168 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:23,169 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:23,178 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:23,181 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:23,200 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:23,215 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:23,218 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:23,219 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:23,223 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:23,230 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:23,237 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:23,238 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:23,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:23,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:23,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:24,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:25,506 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:25,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211074094] [2021-05-06 11:37:25,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1211074094] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:25,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:25,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-05-06 11:37:25,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282290491] [2021-05-06 11:37:25,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-06 11:37:25,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:25,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-06 11:37:25,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1702, Unknown=0, NotChecked=0, Total=1892 [2021-05-06 11:37:25,507 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand has 41 states, 41 states have (on average 1.9268292682926829) internal successors, (79), 40 states have internal predecessors, (79), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:29,182 INFO L93 Difference]: Finished difference Result 90 states and 91 transitions. [2021-05-06 11:37:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-06 11:37:29,182 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.9268292682926829) internal successors, (79), 40 states have internal predecessors, (79), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2021-05-06 11:37:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:29,183 INFO L225 Difference]: With dead ends: 90 [2021-05-06 11:37:29,183 INFO L226 Difference]: Without dead ends: 87 [2021-05-06 11:37:29,183 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 4 SyntacticMatches, 29 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 4234.0ms TimeCoverageRelationStatistics Valid=484, Invalid=5996, Unknown=0, NotChecked=0, Total=6480 [2021-05-06 11:37:29,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-05-06 11:37:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-05-06 11:37:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.024390243902439) internal successors, (84), 82 states have internal predecessors, (84), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2021-05-06 11:37:29,228 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 83 [2021-05-06 11:37:29,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:29,228 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2021-05-06 11:37:29,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 1.9268292682926829) internal successors, (79), 40 states have internal predecessors, (79), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2021-05-06 11:37:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-05-06 11:37:29,229 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:29,229 INFO L523 BasicCegarLoop]: trace histogram [29, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:29,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-05-06 11:37:29,229 INFO L428 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:29,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1039425822, now seen corresponding path program 28 times [2021-05-06 11:37:29,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:29,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626184073] [2021-05-06 11:37:29,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:29,237 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:29,237 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:29,241 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:29,249 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:29,255 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:29,258 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:29,267 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:29,269 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:29,277 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:29,278 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:29,286 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:29,299 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:29,300 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:29,302 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:29,311 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:29,312 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:29,320 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:29,322 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:29,329 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:29,342 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:29,344 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:29,345 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:29,348 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:29,356 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:29,363 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:29,364 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:29,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:29,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:29,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:30,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:31,638 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:31,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626184073] [2021-05-06 11:37:31,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [626184073] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:31,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:31,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2021-05-06 11:37:31,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079578577] [2021-05-06 11:37:31,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-06 11:37:31,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:31,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-06 11:37:31,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2021-05-06 11:37:31,640 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand has 42 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 41 states have internal predecessors, (81), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:35,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:35,676 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2021-05-06 11:37:35,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-06 11:37:35,676 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 41 states have internal predecessors, (81), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2021-05-06 11:37:35,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:35,677 INFO L225 Difference]: With dead ends: 92 [2021-05-06 11:37:35,677 INFO L226 Difference]: Without dead ends: 89 [2021-05-06 11:37:35,677 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 4 SyntacticMatches, 30 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1476 ImplicationChecksByTransitivity, 4302.3ms TimeCoverageRelationStatistics Valid=492, Invalid=6314, Unknown=0, NotChecked=0, Total=6806 [2021-05-06 11:37:35,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-05-06 11:37:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2021-05-06 11:37:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.0238095238095237) internal successors, (86), 84 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2021-05-06 11:37:35,719 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 85 [2021-05-06 11:37:35,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:35,720 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2021-05-06 11:37:35,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 41 states have internal predecessors, (81), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2021-05-06 11:37:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-05-06 11:37:35,720 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:35,721 INFO L523 BasicCegarLoop]: trace histogram [30, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:35,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-05-06 11:37:35,721 INFO L428 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:35,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:35,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1831626844, now seen corresponding path program 29 times [2021-05-06 11:37:35,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:35,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568009108] [2021-05-06 11:37:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:35,727 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:35,727 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:35,731 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:35,739 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:35,746 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:35,750 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:35,759 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:35,760 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:35,767 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:35,769 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:35,790 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:35,807 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:35,808 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:35,811 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:35,812 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:35,813 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:35,822 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:35,824 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:35,840 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:35,853 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:35,855 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:35,859 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:35,863 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:35,867 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:35,873 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:35,874 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:36,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:36,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:36,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:37,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:38,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:38,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:38,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:38,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:38,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:38,295 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:38,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568009108] [2021-05-06 11:37:38,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [568009108] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:38,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:38,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-05-06 11:37:38,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930449867] [2021-05-06 11:37:38,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-06 11:37:38,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:38,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-06 11:37:38,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1874, Unknown=0, NotChecked=0, Total=2070 [2021-05-06 11:37:38,296 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand has 43 states, 43 states have (on average 1.930232558139535) internal successors, (83), 42 states have internal predecessors, (83), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:42,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:42,495 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2021-05-06 11:37:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-06 11:37:42,496 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 1.930232558139535) internal successors, (83), 42 states have internal predecessors, (83), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2021-05-06 11:37:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:42,496 INFO L225 Difference]: With dead ends: 94 [2021-05-06 11:37:42,496 INFO L226 Difference]: Without dead ends: 91 [2021-05-06 11:37:42,497 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 4 SyntacticMatches, 31 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 4525.8ms TimeCoverageRelationStatistics Valid=500, Invalid=6640, Unknown=0, NotChecked=0, Total=7140 [2021-05-06 11:37:42,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-05-06 11:37:42,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2021-05-06 11:37:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.0232558139534884) internal successors, (88), 86 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:42,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2021-05-06 11:37:42,539 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 87 [2021-05-06 11:37:42,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:42,539 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2021-05-06 11:37:42,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 1.930232558139535) internal successors, (83), 42 states have internal predecessors, (83), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2021-05-06 11:37:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-06 11:37:42,540 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:42,540 INFO L523 BasicCegarLoop]: trace histogram [31, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:42,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-05-06 11:37:42,540 INFO L428 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:42,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:42,540 INFO L82 PathProgramCache]: Analyzing trace with hash -750732458, now seen corresponding path program 30 times [2021-05-06 11:37:42,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:42,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325885887] [2021-05-06 11:37:42,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:42,553 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:42,557 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:42,561 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:42,565 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:42,572 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:42,574 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:42,584 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:42,585 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:42,592 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:42,594 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:42,602 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:42,618 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:42,619 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:42,621 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:42,631 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:42,632 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:42,649 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:42,652 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:42,662 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:42,676 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:42,678 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:42,679 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:42,683 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:42,690 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:42,697 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:42,697 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:42,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:42,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:42,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:42,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:42,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:42,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:42,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:42,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:43,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:44,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:45,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:45,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:45,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:45,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:45,277 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:45,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325885887] [2021-05-06 11:37:45,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1325885887] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:45,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:45,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-05-06 11:37:45,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786566181] [2021-05-06 11:37:45,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-06 11:37:45,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:45,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-06 11:37:45,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1963, Unknown=0, NotChecked=0, Total=2162 [2021-05-06 11:37:45,279 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand has 44 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 43 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:49,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:49,753 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2021-05-06 11:37:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-06 11:37:49,753 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 43 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2021-05-06 11:37:49,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:49,754 INFO L225 Difference]: With dead ends: 96 [2021-05-06 11:37:49,754 INFO L226 Difference]: Without dead ends: 93 [2021-05-06 11:37:49,754 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 4 SyntacticMatches, 32 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 4833.8ms TimeCoverageRelationStatistics Valid=508, Invalid=6974, Unknown=0, NotChecked=0, Total=7482 [2021-05-06 11:37:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-05-06 11:37:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2021-05-06 11:37:49,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 88 states have (on average 1.0227272727272727) internal successors, (90), 88 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:49,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 93 transitions. [2021-05-06 11:37:49,799 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 93 transitions. Word has length 89 [2021-05-06 11:37:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:49,799 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 93 transitions. [2021-05-06 11:37:49,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 43 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 93 transitions. [2021-05-06 11:37:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-05-06 11:37:49,800 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:49,800 INFO L523 BasicCegarLoop]: trace histogram [32, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:49,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-05-06 11:37:49,800 INFO L428 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:49,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:49,800 INFO L82 PathProgramCache]: Analyzing trace with hash 93075408, now seen corresponding path program 31 times [2021-05-06 11:37:49,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:49,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231588154] [2021-05-06 11:37:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:49,806 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:49,806 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:49,810 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:49,818 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:49,825 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:49,829 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:49,839 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:49,840 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:49,848 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:49,850 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:49,858 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:49,870 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:49,872 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:49,874 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:49,883 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:49,884 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:49,891 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:49,892 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:49,900 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:49,913 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:49,915 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:49,916 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:49,919 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:49,927 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:49,934 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:49,935 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:50,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:50,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:50,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:50,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:51,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:52,653 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:37:52,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231588154] [2021-05-06 11:37:52,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [231588154] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:37:52,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:37:52,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2021-05-06 11:37:52,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003601460] [2021-05-06 11:37:52,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-06 11:37:52,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:37:52,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-06 11:37:52,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=2054, Unknown=0, NotChecked=0, Total=2256 [2021-05-06 11:37:52,654 INFO L87 Difference]: Start difference. First operand 92 states and 93 transitions. Second operand has 45 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 44 states have internal predecessors, (87), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:37:57,266 INFO L93 Difference]: Finished difference Result 98 states and 99 transitions. [2021-05-06 11:37:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-06 11:37:57,266 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 44 states have internal predecessors, (87), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2021-05-06 11:37:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:37:57,267 INFO L225 Difference]: With dead ends: 98 [2021-05-06 11:37:57,267 INFO L226 Difference]: Without dead ends: 95 [2021-05-06 11:37:57,268 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 4 SyntacticMatches, 33 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1674 ImplicationChecksByTransitivity, 5023.9ms TimeCoverageRelationStatistics Valid=516, Invalid=7316, Unknown=0, NotChecked=0, Total=7832 [2021-05-06 11:37:57,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-05-06 11:37:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2021-05-06 11:37:57,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 90 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:57,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2021-05-06 11:37:57,320 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 91 [2021-05-06 11:37:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:37:57,320 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2021-05-06 11:37:57,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 44 states have internal predecessors, (87), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:37:57,320 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2021-05-06 11:37:57,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-05-06 11:37:57,321 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:37:57,321 INFO L523 BasicCegarLoop]: trace histogram [33, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:37:57,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-05-06 11:37:57,321 INFO L428 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:37:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:37:57,321 INFO L82 PathProgramCache]: Analyzing trace with hash -756384310, now seen corresponding path program 32 times [2021-05-06 11:37:57,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:37:57,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734417805] [2021-05-06 11:37:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:37:57,334 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:37:57,339 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:57,343 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:57,348 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:37:57,355 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:57,357 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:57,367 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:57,368 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:57,374 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:57,376 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:57,384 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:57,396 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:57,397 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:57,399 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:37:57,400 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:57,401 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:57,408 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:37:57,410 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:37:57,425 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:37:57,438 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:57,441 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:37:57,445 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:37:57,450 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:37:57,454 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:37:57,461 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:37:57,462 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:37:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:57,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:37:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:37:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:37:57,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:57,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:58,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:37:59,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:00,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:00,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:00,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:00,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:00,262 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:00,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734417805] [2021-05-06 11:38:00,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [734417805] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:00,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:00,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2021-05-06 11:38:00,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257330405] [2021-05-06 11:38:00,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-06 11:38:00,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:00,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-06 11:38:00,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2021-05-06 11:38:00,263 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand has 46 states, 46 states have (on average 1.934782608695652) internal successors, (89), 45 states have internal predecessors, (89), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:05,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:05,085 INFO L93 Difference]: Finished difference Result 100 states and 101 transitions. [2021-05-06 11:38:05,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-06 11:38:05,085 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.934782608695652) internal successors, (89), 45 states have internal predecessors, (89), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2021-05-06 11:38:05,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:05,085 INFO L225 Difference]: With dead ends: 100 [2021-05-06 11:38:05,086 INFO L226 Difference]: Without dead ends: 97 [2021-05-06 11:38:05,086 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 4 SyntacticMatches, 34 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1742 ImplicationChecksByTransitivity, 5207.5ms TimeCoverageRelationStatistics Valid=524, Invalid=7666, Unknown=0, NotChecked=0, Total=8190 [2021-05-06 11:38:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-05-06 11:38:05,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2021-05-06 11:38:05,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.0217391304347827) internal successors, (94), 92 states have internal predecessors, (94), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 97 transitions. [2021-05-06 11:38:05,142 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 97 transitions. Word has length 93 [2021-05-06 11:38:05,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:05,143 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 97 transitions. [2021-05-06 11:38:05,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.934782608695652) internal successors, (89), 45 states have internal predecessors, (89), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 97 transitions. [2021-05-06 11:38:05,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-05-06 11:38:05,143 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:05,143 INFO L523 BasicCegarLoop]: trace histogram [34, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:05,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-05-06 11:38:05,143 INFO L428 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:05,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:05,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1043387068, now seen corresponding path program 33 times [2021-05-06 11:38:05,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:05,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965679881] [2021-05-06 11:38:05,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:05,151 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:38:05,156 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:05,160 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:05,164 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:38:05,171 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:05,173 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:05,174 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:05,175 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:05,182 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:05,184 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:05,199 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:05,211 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:05,212 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:05,214 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:05,215 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:05,216 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:05,223 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:05,224 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:05,239 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:05,252 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:05,254 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:38:05,258 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:05,262 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:05,266 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:38:05,273 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:05,273 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:05,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:38:05,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:05,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:06,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:07,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:08,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:08,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:08,190 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:08,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965679881] [2021-05-06 11:38:08,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1965679881] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:08,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:08,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2021-05-06 11:38:08,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95192654] [2021-05-06 11:38:08,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-05-06 11:38:08,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:08,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-05-06 11:38:08,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=2242, Unknown=0, NotChecked=0, Total=2450 [2021-05-06 11:38:08,192 INFO L87 Difference]: Start difference. First operand 96 states and 97 transitions. Second operand has 47 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 46 states have internal predecessors, (91), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:13,239 INFO L93 Difference]: Finished difference Result 102 states and 103 transitions. [2021-05-06 11:38:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-06 11:38:13,240 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 46 states have internal predecessors, (91), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2021-05-06 11:38:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:13,240 INFO L225 Difference]: With dead ends: 102 [2021-05-06 11:38:13,240 INFO L226 Difference]: Without dead ends: 99 [2021-05-06 11:38:13,241 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 4 SyntacticMatches, 35 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1811 ImplicationChecksByTransitivity, 5409.0ms TimeCoverageRelationStatistics Valid=532, Invalid=8024, Unknown=0, NotChecked=0, Total=8556 [2021-05-06 11:38:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-05-06 11:38:13,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2021-05-06 11:38:13,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.0212765957446808) internal successors, (96), 94 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:13,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2021-05-06 11:38:13,301 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 95 [2021-05-06 11:38:13,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:13,301 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2021-05-06 11:38:13,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 46 states have internal predecessors, (91), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:13,301 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2021-05-06 11:38:13,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-05-06 11:38:13,302 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:13,302 INFO L523 BasicCegarLoop]: trace histogram [35, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:13,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-05-06 11:38:13,302 INFO L428 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:13,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:13,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1975130562, now seen corresponding path program 34 times [2021-05-06 11:38:13,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:13,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264118062] [2021-05-06 11:38:13,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:13,308 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:38:13,312 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:13,316 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:13,319 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:38:13,326 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:13,329 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:13,338 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:13,339 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:13,347 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:13,349 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:13,356 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:13,369 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:13,370 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:13,372 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:13,373 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:13,374 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:13,382 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:13,383 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:13,399 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:13,411 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:13,414 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:38:13,418 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:13,422 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:13,426 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:38:13,432 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:13,433 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:13,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:38:13,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:13,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:14,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:15,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:16,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:16,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:16,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:16,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:16,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:16,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:16,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:16,484 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:16,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264118062] [2021-05-06 11:38:16,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [264118062] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:16,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:16,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2021-05-06 11:38:16,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138944155] [2021-05-06 11:38:16,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-06 11:38:16,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:16,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-06 11:38:16,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2339, Unknown=0, NotChecked=0, Total=2550 [2021-05-06 11:38:16,485 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand has 48 states, 48 states have (on average 1.9375) internal successors, (93), 47 states have internal predecessors, (93), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:21,794 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2021-05-06 11:38:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-06 11:38:21,794 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.9375) internal successors, (93), 47 states have internal predecessors, (93), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2021-05-06 11:38:21,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:21,795 INFO L225 Difference]: With dead ends: 104 [2021-05-06 11:38:21,795 INFO L226 Difference]: Without dead ends: 101 [2021-05-06 11:38:21,795 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 4 SyntacticMatches, 36 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 5680.5ms TimeCoverageRelationStatistics Valid=540, Invalid=8390, Unknown=0, NotChecked=0, Total=8930 [2021-05-06 11:38:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-05-06 11:38:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2021-05-06 11:38:21,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.0208333333333333) internal successors, (98), 96 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:21,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 101 transitions. [2021-05-06 11:38:21,854 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 101 transitions. Word has length 97 [2021-05-06 11:38:21,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:21,855 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 101 transitions. [2021-05-06 11:38:21,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 1.9375) internal successors, (93), 47 states have internal predecessors, (93), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:21,855 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 101 transitions. [2021-05-06 11:38:21,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-05-06 11:38:21,855 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:21,855 INFO L523 BasicCegarLoop]: trace histogram [36, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:21,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-05-06 11:38:21,855 INFO L428 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:21,856 INFO L82 PathProgramCache]: Analyzing trace with hash 267536568, now seen corresponding path program 35 times [2021-05-06 11:38:21,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:21,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358961760] [2021-05-06 11:38:21,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:21,862 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:38:21,866 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:21,871 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:21,876 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:38:21,882 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:21,886 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:21,887 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:21,888 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:21,895 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:21,897 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:21,912 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:21,925 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:21,926 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:21,928 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:21,929 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:21,930 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:21,937 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:21,939 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:21,954 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:21,966 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:21,974 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:38:21,979 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:21,983 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:21,987 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:38:21,994 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:21,994 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:22,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:38:22,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:22,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:23,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:24,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:25,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:25,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:25,134 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:25,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358961760] [2021-05-06 11:38:25,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [358961760] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:25,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:25,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2021-05-06 11:38:25,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367581984] [2021-05-06 11:38:25,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-05-06 11:38:25,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:25,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-05-06 11:38:25,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=2438, Unknown=0, NotChecked=0, Total=2652 [2021-05-06 11:38:25,136 INFO L87 Difference]: Start difference. First operand 100 states and 101 transitions. Second operand has 49 states, 49 states have (on average 1.9387755102040816) internal successors, (95), 48 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:30,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:30,657 INFO L93 Difference]: Finished difference Result 106 states and 107 transitions. [2021-05-06 11:38:30,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-05-06 11:38:30,658 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.9387755102040816) internal successors, (95), 48 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2021-05-06 11:38:30,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:30,658 INFO L225 Difference]: With dead ends: 106 [2021-05-06 11:38:30,658 INFO L226 Difference]: Without dead ends: 103 [2021-05-06 11:38:30,659 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 4 SyntacticMatches, 37 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1952 ImplicationChecksByTransitivity, 5880.6ms TimeCoverageRelationStatistics Valid=548, Invalid=8764, Unknown=0, NotChecked=0, Total=9312 [2021-05-06 11:38:30,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-05-06 11:38:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2021-05-06 11:38:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 98 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2021-05-06 11:38:30,718 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 99 [2021-05-06 11:38:30,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:30,718 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2021-05-06 11:38:30,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 1.9387755102040816) internal successors, (95), 48 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:30,718 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2021-05-06 11:38:30,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-05-06 11:38:30,719 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:30,719 INFO L523 BasicCegarLoop]: trace histogram [37, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:30,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-05-06 11:38:30,719 INFO L428 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:30,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:30,719 INFO L82 PathProgramCache]: Analyzing trace with hash -602934094, now seen corresponding path program 36 times [2021-05-06 11:38:30,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:30,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676874505] [2021-05-06 11:38:30,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:30,726 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:38:30,730 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:30,734 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:30,738 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:38:30,745 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:30,748 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:30,749 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:30,750 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:30,757 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:30,759 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:30,775 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:30,788 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:30,789 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:30,791 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:30,801 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:30,802 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:30,809 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:30,811 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:30,819 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:30,832 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:30,834 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:38:30,839 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:30,842 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:30,846 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:38:30,853 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:30,854 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:31,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:38:31,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:31,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:32,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:33,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:34,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:34,130 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:34,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676874505] [2021-05-06 11:38:34,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1676874505] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:34,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:34,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2021-05-06 11:38:34,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868423155] [2021-05-06 11:38:34,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-05-06 11:38:34,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:34,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-05-06 11:38:34,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=2539, Unknown=0, NotChecked=0, Total=2756 [2021-05-06 11:38:34,131 INFO L87 Difference]: Start difference. First operand 102 states and 103 transitions. Second operand has 50 states, 50 states have (on average 1.94) internal successors, (97), 49 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:39,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:39,793 INFO L93 Difference]: Finished difference Result 108 states and 109 transitions. [2021-05-06 11:38:39,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-06 11:38:39,794 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.94) internal successors, (97), 49 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2021-05-06 11:38:39,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:39,794 INFO L225 Difference]: With dead ends: 108 [2021-05-06 11:38:39,794 INFO L226 Difference]: Without dead ends: 105 [2021-05-06 11:38:39,795 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 4 SyntacticMatches, 38 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2024 ImplicationChecksByTransitivity, 6064.9ms TimeCoverageRelationStatistics Valid=556, Invalid=9146, Unknown=0, NotChecked=0, Total=9702 [2021-05-06 11:38:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-05-06 11:38:39,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2021-05-06 11:38:39,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.02) internal successors, (102), 100 states have internal predecessors, (102), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2021-05-06 11:38:39,864 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 101 [2021-05-06 11:38:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:39,865 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2021-05-06 11:38:39,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 1.94) internal successors, (97), 49 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2021-05-06 11:38:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-05-06 11:38:39,865 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:39,865 INFO L523 BasicCegarLoop]: trace histogram [38, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:39,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-05-06 11:38:39,865 INFO L428 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:39,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:39,866 INFO L82 PathProgramCache]: Analyzing trace with hash 393382444, now seen corresponding path program 37 times [2021-05-06 11:38:39,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:39,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824945986] [2021-05-06 11:38:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:39,871 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:38:39,876 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:39,879 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:39,883 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:38:39,890 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:39,893 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:39,902 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:39,903 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:39,910 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:39,912 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:39,919 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:39,932 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:39,932 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:39,935 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:39,944 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:39,945 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:39,951 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:39,953 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:39,961 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:39,973 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:39,975 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:38:39,977 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:39,980 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:39,988 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:38:39,995 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:39,996 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:40,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:38:40,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:40,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:41,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:42,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:43,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:43,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:43,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:43,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:43,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:43,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:43,446 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:43,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824945986] [2021-05-06 11:38:43,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1824945986] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:43,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:43,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2021-05-06 11:38:43,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960546296] [2021-05-06 11:38:43,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-05-06 11:38:43,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:43,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-05-06 11:38:43,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=2642, Unknown=0, NotChecked=0, Total=2862 [2021-05-06 11:38:43,448 INFO L87 Difference]: Start difference. First operand 104 states and 105 transitions. Second operand has 51 states, 51 states have (on average 1.9411764705882353) internal successors, (99), 50 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:49,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:49,375 INFO L93 Difference]: Finished difference Result 110 states and 111 transitions. [2021-05-06 11:38:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-05-06 11:38:49,375 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 1.9411764705882353) internal successors, (99), 50 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2021-05-06 11:38:49,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:49,376 INFO L225 Difference]: With dead ends: 110 [2021-05-06 11:38:49,376 INFO L226 Difference]: Without dead ends: 107 [2021-05-06 11:38:49,376 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 4 SyntacticMatches, 39 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2097 ImplicationChecksByTransitivity, 6354.4ms TimeCoverageRelationStatistics Valid=564, Invalid=9536, Unknown=0, NotChecked=0, Total=10100 [2021-05-06 11:38:49,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-05-06 11:38:49,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2021-05-06 11:38:49,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 102 states have (on average 1.0196078431372548) internal successors, (104), 102 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 107 transitions. [2021-05-06 11:38:49,447 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 107 transitions. Word has length 103 [2021-05-06 11:38:49,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:49,447 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 107 transitions. [2021-05-06 11:38:49,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 1.9411764705882353) internal successors, (99), 50 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:49,448 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 107 transitions. [2021-05-06 11:38:49,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-05-06 11:38:49,448 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:49,448 INFO L523 BasicCegarLoop]: trace histogram [39, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:49,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-05-06 11:38:49,448 INFO L428 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:49,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:49,448 INFO L82 PathProgramCache]: Analyzing trace with hash 75868454, now seen corresponding path program 38 times [2021-05-06 11:38:49,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:49,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495284242] [2021-05-06 11:38:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:49,454 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:38:49,458 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:49,462 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:49,466 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:38:49,473 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:49,482 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:49,491 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:49,493 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:49,500 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:49,501 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:49,510 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:49,522 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:49,523 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:49,526 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:49,526 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:49,527 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:49,535 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:49,537 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:49,552 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:49,565 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:49,567 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:38:49,571 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:49,575 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:49,579 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:38:49,586 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:49,586 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:49,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:38:49,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:49,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:50,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:51,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:52,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:53,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:53,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:53,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:53,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:53,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:53,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:38:53,455 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:53,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495284242] [2021-05-06 11:38:53,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1495284242] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:53,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:53,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2021-05-06 11:38:53,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514871880] [2021-05-06 11:38:53,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-05-06 11:38:53,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:53,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-05-06 11:38:53,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=2747, Unknown=0, NotChecked=0, Total=2970 [2021-05-06 11:38:53,457 INFO L87 Difference]: Start difference. First operand 106 states and 107 transitions. Second operand has 52 states, 52 states have (on average 1.9423076923076923) internal successors, (101), 51 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:59,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:59,697 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2021-05-06 11:38:59,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-06 11:38:59,698 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.9423076923076923) internal successors, (101), 51 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2021-05-06 11:38:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:59,698 INFO L225 Difference]: With dead ends: 112 [2021-05-06 11:38:59,698 INFO L226 Difference]: Without dead ends: 109 [2021-05-06 11:38:59,699 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 40 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2171 ImplicationChecksByTransitivity, 6932.3ms TimeCoverageRelationStatistics Valid=572, Invalid=9934, Unknown=0, NotChecked=0, Total=10506 [2021-05-06 11:38:59,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-05-06 11:38:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2021-05-06 11:38:59,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 104 states have (on average 1.0192307692307692) internal successors, (106), 104 states have internal predecessors, (106), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2021-05-06 11:38:59,773 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 105 [2021-05-06 11:38:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:59,774 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2021-05-06 11:38:59,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 1.9423076923076923) internal successors, (101), 51 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:38:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2021-05-06 11:38:59,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-05-06 11:38:59,774 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:59,774 INFO L523 BasicCegarLoop]: trace histogram [40, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:59,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-05-06 11:38:59,775 INFO L428 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:59,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:59,775 INFO L82 PathProgramCache]: Analyzing trace with hash -112397920, now seen corresponding path program 39 times [2021-05-06 11:38:59,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:59,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516854431] [2021-05-06 11:38:59,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:59,786 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:38:59,786 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:59,791 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:59,799 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:38:59,805 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:59,810 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:59,819 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:59,820 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:59,828 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:59,829 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:59,837 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:59,850 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:59,850 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:59,852 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:38:59,853 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:59,854 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:59,862 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:38:59,863 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:38:59,879 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:38:59,891 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:59,893 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:38:59,893 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:38:59,897 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:38:59,905 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:38:59,911 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:38:59,912 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:38:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:00,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:39:00,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:00,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:01,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:02,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:03,605 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:03,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516854431] [2021-05-06 11:39:03,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [516854431] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:03,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:03,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2021-05-06 11:39:03,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422696517] [2021-05-06 11:39:03,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-06 11:39:03,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:03,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-06 11:39:03,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=2854, Unknown=0, NotChecked=0, Total=3080 [2021-05-06 11:39:03,606 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand has 53 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 52 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:09,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:09,769 INFO L93 Difference]: Finished difference Result 114 states and 115 transitions. [2021-05-06 11:39:09,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-06 11:39:09,770 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 52 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2021-05-06 11:39:09,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:09,771 INFO L225 Difference]: With dead ends: 114 [2021-05-06 11:39:09,771 INFO L226 Difference]: Without dead ends: 111 [2021-05-06 11:39:09,771 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 4 SyntacticMatches, 41 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2246 ImplicationChecksByTransitivity, 6850.8ms TimeCoverageRelationStatistics Valid=580, Invalid=10340, Unknown=0, NotChecked=0, Total=10920 [2021-05-06 11:39:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-05-06 11:39:09,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2021-05-06 11:39:09,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.0188679245283019) internal successors, (108), 106 states have internal predecessors, (108), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:09,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 111 transitions. [2021-05-06 11:39:09,878 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 111 transitions. Word has length 107 [2021-05-06 11:39:09,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:09,878 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 111 transitions. [2021-05-06 11:39:09,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 52 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 111 transitions. [2021-05-06 11:39:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-05-06 11:39:09,879 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:09,879 INFO L523 BasicCegarLoop]: trace histogram [41, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:09,879 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-05-06 11:39:09,879 INFO L428 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:09,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:09,880 INFO L82 PathProgramCache]: Analyzing trace with hash -647756902, now seen corresponding path program 40 times [2021-05-06 11:39:09,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:09,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670275562] [2021-05-06 11:39:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:09,887 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:39:09,892 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:09,896 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:09,901 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:39:09,909 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:09,913 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:09,913 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:09,915 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:09,922 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:09,925 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:09,943 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:09,957 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:09,958 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:09,961 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:09,962 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:09,963 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:09,973 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:09,975 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:09,993 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:10,008 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:10,010 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:39:10,011 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:10,015 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:10,025 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:39:10,032 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:10,033 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:10,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:39:10,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:10,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:11,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:12,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:13,927 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:13,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670275562] [2021-05-06 11:39:13,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [670275562] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:13,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:13,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2021-05-06 11:39:13,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438590462] [2021-05-06 11:39:13,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-05-06 11:39:13,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:13,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-05-06 11:39:13,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2963, Unknown=0, NotChecked=0, Total=3192 [2021-05-06 11:39:13,928 INFO L87 Difference]: Start difference. First operand 110 states and 111 transitions. Second operand has 54 states, 54 states have (on average 1.9444444444444444) internal successors, (105), 53 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:20,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:20,653 INFO L93 Difference]: Finished difference Result 116 states and 117 transitions. [2021-05-06 11:39:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-06 11:39:20,653 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 1.9444444444444444) internal successors, (105), 53 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2021-05-06 11:39:20,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:20,654 INFO L225 Difference]: With dead ends: 116 [2021-05-06 11:39:20,654 INFO L226 Difference]: Without dead ends: 113 [2021-05-06 11:39:20,655 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 4 SyntacticMatches, 42 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2322 ImplicationChecksByTransitivity, 7144.8ms TimeCoverageRelationStatistics Valid=588, Invalid=10754, Unknown=0, NotChecked=0, Total=11342 [2021-05-06 11:39:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-05-06 11:39:20,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2021-05-06 11:39:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 108 states have internal predecessors, (110), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:20,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 113 transitions. [2021-05-06 11:39:20,751 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 113 transitions. Word has length 109 [2021-05-06 11:39:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:20,751 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 113 transitions. [2021-05-06 11:39:20,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 1.9444444444444444) internal successors, (105), 53 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:20,751 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 113 transitions. [2021-05-06 11:39:20,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-05-06 11:39:20,751 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:20,752 INFO L523 BasicCegarLoop]: trace histogram [42, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:20,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-05-06 11:39:20,752 INFO L428 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:20,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:20,753 INFO L82 PathProgramCache]: Analyzing trace with hash 268336916, now seen corresponding path program 41 times [2021-05-06 11:39:20,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:20,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408380035] [2021-05-06 11:39:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:20,758 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:39:20,763 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:20,766 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:20,770 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:39:20,777 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:20,790 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:20,791 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:20,792 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:20,800 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:20,801 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:20,817 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:20,829 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:20,830 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:20,833 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:20,842 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:20,843 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:20,851 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:20,853 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:20,860 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:20,873 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:20,875 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:39:20,880 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:20,883 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:20,887 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:39:20,894 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:20,895 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:21,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:39:21,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:21,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:22,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:23,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:24,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:25,044 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:25,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408380035] [2021-05-06 11:39:25,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1408380035] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:25,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:25,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2021-05-06 11:39:25,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729020681] [2021-05-06 11:39:25,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-05-06 11:39:25,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:25,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-05-06 11:39:25,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=3074, Unknown=0, NotChecked=0, Total=3306 [2021-05-06 11:39:25,046 INFO L87 Difference]: Start difference. First operand 112 states and 113 transitions. Second operand has 55 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 54 states have internal predecessors, (107), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:32,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:32,022 INFO L93 Difference]: Finished difference Result 118 states and 119 transitions. [2021-05-06 11:39:32,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-06 11:39:32,023 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 54 states have internal predecessors, (107), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2021-05-06 11:39:32,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:32,023 INFO L225 Difference]: With dead ends: 118 [2021-05-06 11:39:32,023 INFO L226 Difference]: Without dead ends: 115 [2021-05-06 11:39:32,024 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 4 SyntacticMatches, 43 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2399 ImplicationChecksByTransitivity, 7498.5ms TimeCoverageRelationStatistics Valid=596, Invalid=11176, Unknown=0, NotChecked=0, Total=11772 [2021-05-06 11:39:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-05-06 11:39:32,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2021-05-06 11:39:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 110 states have (on average 1.018181818181818) internal successors, (112), 110 states have internal predecessors, (112), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2021-05-06 11:39:32,102 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 111 [2021-05-06 11:39:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:32,102 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2021-05-06 11:39:32,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 54 states have internal predecessors, (107), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2021-05-06 11:39:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-06 11:39:32,102 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:32,103 INFO L523 BasicCegarLoop]: trace histogram [43, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:32,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-05-06 11:39:32,103 INFO L428 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:32,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:32,103 INFO L82 PathProgramCache]: Analyzing trace with hash 166200334, now seen corresponding path program 42 times [2021-05-06 11:39:32,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:32,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483410994] [2021-05-06 11:39:32,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:32,112 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:39:32,113 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:32,116 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:32,124 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:39:32,131 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:32,135 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:32,144 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:32,145 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:32,152 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:32,154 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:32,162 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:32,174 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:32,175 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:32,178 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:32,187 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:32,188 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:32,196 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:32,197 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:32,205 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:32,218 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:32,221 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:39:32,222 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:32,225 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:32,233 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:39:32,240 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:32,241 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:32,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:39:32,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:32,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:33,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:34,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:35,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:36,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:36,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:36,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:36,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:36,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:36,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:36,494 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:36,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483410994] [2021-05-06 11:39:36,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1483410994] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:36,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:36,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2021-05-06 11:39:36,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028666967] [2021-05-06 11:39:36,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-05-06 11:39:36,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:36,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-05-06 11:39:36,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=3187, Unknown=0, NotChecked=0, Total=3422 [2021-05-06 11:39:36,496 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand has 56 states, 56 states have (on average 1.9464285714285714) internal successors, (109), 55 states have internal predecessors, (109), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:43,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:43,702 INFO L93 Difference]: Finished difference Result 120 states and 121 transitions. [2021-05-06 11:39:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-06 11:39:43,703 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 1.9464285714285714) internal successors, (109), 55 states have internal predecessors, (109), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2021-05-06 11:39:43,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:43,703 INFO L225 Difference]: With dead ends: 120 [2021-05-06 11:39:43,703 INFO L226 Difference]: Without dead ends: 117 [2021-05-06 11:39:43,704 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 4 SyntacticMatches, 44 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2477 ImplicationChecksByTransitivity, 7740.6ms TimeCoverageRelationStatistics Valid=604, Invalid=11606, Unknown=0, NotChecked=0, Total=12210 [2021-05-06 11:39:43,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-05-06 11:39:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2021-05-06 11:39:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 112 states have (on average 1.0178571428571428) internal successors, (114), 112 states have internal predecessors, (114), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 117 transitions. [2021-05-06 11:39:43,796 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 117 transitions. Word has length 113 [2021-05-06 11:39:43,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:43,796 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 117 transitions. [2021-05-06 11:39:43,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 1.9464285714285714) internal successors, (109), 55 states have internal predecessors, (109), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 117 transitions. [2021-05-06 11:39:43,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-05-06 11:39:43,797 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:43,797 INFO L523 BasicCegarLoop]: trace histogram [44, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:43,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-05-06 11:39:43,797 INFO L428 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:43,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:43,797 INFO L82 PathProgramCache]: Analyzing trace with hash 797192840, now seen corresponding path program 43 times [2021-05-06 11:39:43,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:43,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730730193] [2021-05-06 11:39:43,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:43,807 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:39:43,812 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:43,815 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:43,820 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:39:43,826 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:43,829 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:43,830 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:43,831 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:43,839 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:43,841 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:43,856 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:43,869 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:43,870 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:43,874 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:43,884 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:43,888 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:43,899 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:43,901 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:43,909 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:43,922 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:43,930 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:39:43,935 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:43,939 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:43,943 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:39:43,950 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:43,951 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:44,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:39:44,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:44,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:45,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:46,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:47,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:48,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:48,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:48,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:48,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:48,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:48,449 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:48,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730730193] [2021-05-06 11:39:48,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [730730193] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:48,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:48,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2021-05-06 11:39:48,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289213530] [2021-05-06 11:39:48,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-05-06 11:39:48,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:48,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-05-06 11:39:48,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=3302, Unknown=0, NotChecked=0, Total=3540 [2021-05-06 11:39:48,450 INFO L87 Difference]: Start difference. First operand 116 states and 117 transitions. Second operand has 57 states, 57 states have (on average 1.9473684210526316) internal successors, (111), 56 states have internal predecessors, (111), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:56,104 INFO L93 Difference]: Finished difference Result 122 states and 123 transitions. [2021-05-06 11:39:56,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-05-06 11:39:56,104 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.9473684210526316) internal successors, (111), 56 states have internal predecessors, (111), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2021-05-06 11:39:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:56,105 INFO L225 Difference]: With dead ends: 122 [2021-05-06 11:39:56,105 INFO L226 Difference]: Without dead ends: 119 [2021-05-06 11:39:56,106 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 4 SyntacticMatches, 45 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2556 ImplicationChecksByTransitivity, 8162.5ms TimeCoverageRelationStatistics Valid=612, Invalid=12044, Unknown=0, NotChecked=0, Total=12656 [2021-05-06 11:39:56,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-06 11:39:56,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2021-05-06 11:39:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 114 states have (on average 1.0175438596491229) internal successors, (116), 114 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:56,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 119 transitions. [2021-05-06 11:39:56,205 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 119 transitions. Word has length 115 [2021-05-06 11:39:56,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:56,205 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 119 transitions. [2021-05-06 11:39:56,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 57 states, 57 states have (on average 1.9473684210526316) internal successors, (111), 56 states have internal predecessors, (111), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:39:56,205 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 119 transitions. [2021-05-06 11:39:56,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-05-06 11:39:56,206 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:56,206 INFO L523 BasicCegarLoop]: trace histogram [45, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:56,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-05-06 11:39:56,206 INFO L428 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:56,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:56,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1590602370, now seen corresponding path program 44 times [2021-05-06 11:39:56,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:56,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888600633] [2021-05-06 11:39:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:56,212 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:39:56,213 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:56,217 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:56,226 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:39:56,234 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:56,238 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:56,248 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:56,252 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:56,260 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:56,262 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:56,270 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:56,283 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:56,284 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:56,286 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:39:56,296 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:56,297 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:56,304 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:39:56,306 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:39:56,315 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:39:56,332 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:56,335 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:39:56,335 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:39:56,341 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:39:56,351 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:39:56,360 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:39:56,361 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:39:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:56,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:39:56,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:56,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:57,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:58,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:39:59,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:00,986 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:00,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888600633] [2021-05-06 11:40:00,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [888600633] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:00,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:00,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2021-05-06 11:40:00,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350189124] [2021-05-06 11:40:00,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-05-06 11:40:00,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:00,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-05-06 11:40:00,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=3419, Unknown=0, NotChecked=0, Total=3660 [2021-05-06 11:40:00,987 INFO L87 Difference]: Start difference. First operand 118 states and 119 transitions. Second operand has 58 states, 58 states have (on average 1.9482758620689655) internal successors, (113), 57 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:08,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:08,830 INFO L93 Difference]: Finished difference Result 124 states and 125 transitions. [2021-05-06 11:40:08,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-06 11:40:08,831 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.9482758620689655) internal successors, (113), 57 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2021-05-06 11:40:08,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:08,831 INFO L225 Difference]: With dead ends: 124 [2021-05-06 11:40:08,832 INFO L226 Difference]: Without dead ends: 121 [2021-05-06 11:40:08,832 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 4 SyntacticMatches, 46 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2636 ImplicationChecksByTransitivity, 8380.8ms TimeCoverageRelationStatistics Valid=620, Invalid=12490, Unknown=0, NotChecked=0, Total=13110 [2021-05-06 11:40:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-05-06 11:40:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2021-05-06 11:40:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 116 states have (on average 1.0172413793103448) internal successors, (118), 116 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:08,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2021-05-06 11:40:08,928 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 117 [2021-05-06 11:40:08,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:08,928 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2021-05-06 11:40:08,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 1.9482758620689655) internal successors, (113), 57 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2021-05-06 11:40:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-06 11:40:08,929 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:08,929 INFO L523 BasicCegarLoop]: trace histogram [46, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:08,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-05-06 11:40:08,929 INFO L428 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:08,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:08,929 INFO L82 PathProgramCache]: Analyzing trace with hash -447017988, now seen corresponding path program 45 times [2021-05-06 11:40:08,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:08,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663869823] [2021-05-06 11:40:08,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:08,940 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:40:08,941 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:08,945 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:40:08,953 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:40:08,960 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:08,963 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:40:08,963 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:08,964 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:08,971 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:40:08,973 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:40:08,988 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:40:09,001 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:09,001 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:40:09,005 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:40:09,015 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:09,017 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:09,024 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:40:09,025 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:40:09,033 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:40:09,046 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:09,048 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:40:09,053 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:09,057 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:40:09,061 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:40:09,068 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:09,068 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:40:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:09,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:40:09,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:09,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:10,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:11,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:12,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:13,758 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:13,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663869823] [2021-05-06 11:40:13,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1663869823] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:13,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:13,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2021-05-06 11:40:13,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299848470] [2021-05-06 11:40:13,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-05-06 11:40:13,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:13,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-05-06 11:40:13,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=3538, Unknown=0, NotChecked=0, Total=3782 [2021-05-06 11:40:13,759 INFO L87 Difference]: Start difference. First operand 120 states and 121 transitions. Second operand has 59 states, 59 states have (on average 1.9491525423728813) internal successors, (115), 58 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:21,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:21,860 INFO L93 Difference]: Finished difference Result 126 states and 127 transitions. [2021-05-06 11:40:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-05-06 11:40:21,861 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 1.9491525423728813) internal successors, (115), 58 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2021-05-06 11:40:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:21,861 INFO L225 Difference]: With dead ends: 126 [2021-05-06 11:40:21,861 INFO L226 Difference]: Without dead ends: 123 [2021-05-06 11:40:21,862 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 4 SyntacticMatches, 47 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2717 ImplicationChecksByTransitivity, 8592.6ms TimeCoverageRelationStatistics Valid=628, Invalid=12944, Unknown=0, NotChecked=0, Total=13572 [2021-05-06 11:40:21,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-05-06 11:40:21,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2021-05-06 11:40:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 118 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:21,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2021-05-06 11:40:21,960 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 119 [2021-05-06 11:40:21,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:21,960 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2021-05-06 11:40:21,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 59 states, 59 states have (on average 1.9491525423728813) internal successors, (115), 58 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:21,960 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2021-05-06 11:40:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-05-06 11:40:21,961 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:21,961 INFO L523 BasicCegarLoop]: trace histogram [47, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:21,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-05-06 11:40:21,961 INFO L428 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:21,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:21,962 INFO L82 PathProgramCache]: Analyzing trace with hash -95095050, now seen corresponding path program 46 times [2021-05-06 11:40:21,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:21,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974198354] [2021-05-06 11:40:21,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:21,969 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:40:21,970 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:21,973 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:40:21,982 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:40:21,989 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:21,992 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:40:22,001 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:22,002 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:22,010 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:40:22,012 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:40:22,020 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:40:22,033 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:22,034 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:40:22,036 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:40:22,046 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:22,047 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:22,055 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:40:22,057 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:40:22,064 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:40:22,077 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:22,080 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:40:22,086 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:22,092 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:40:22,097 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:40:22,107 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:22,108 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:40:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:22,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:22,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:40:22,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:22,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:23,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:24,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:25,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:26,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:27,009 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:27,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974198354] [2021-05-06 11:40:27,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [974198354] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:27,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:27,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2021-05-06 11:40:27,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660470242] [2021-05-06 11:40:27,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-05-06 11:40:27,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:27,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-05-06 11:40:27,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=3659, Unknown=0, NotChecked=0, Total=3906 [2021-05-06 11:40:27,010 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand has 60 states, 60 states have (on average 1.95) internal successors, (117), 59 states have internal predecessors, (117), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:35,324 INFO L93 Difference]: Finished difference Result 128 states and 129 transitions. [2021-05-06 11:40:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-06 11:40:35,324 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 1.95) internal successors, (117), 59 states have internal predecessors, (117), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2021-05-06 11:40:35,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:35,325 INFO L225 Difference]: With dead ends: 128 [2021-05-06 11:40:35,325 INFO L226 Difference]: Without dead ends: 125 [2021-05-06 11:40:35,325 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 4 SyntacticMatches, 48 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2799 ImplicationChecksByTransitivity, 8895.0ms TimeCoverageRelationStatistics Valid=636, Invalid=13406, Unknown=0, NotChecked=0, Total=14042 [2021-05-06 11:40:35,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-05-06 11:40:35,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2021-05-06 11:40:35,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 120 states have (on average 1.0166666666666666) internal successors, (122), 120 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:35,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 125 transitions. [2021-05-06 11:40:35,439 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 125 transitions. Word has length 121 [2021-05-06 11:40:35,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:35,439 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 125 transitions. [2021-05-06 11:40:35,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 1.95) internal successors, (117), 59 states have internal predecessors, (117), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 125 transitions. [2021-05-06 11:40:35,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-05-06 11:40:35,440 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:35,440 INFO L523 BasicCegarLoop]: trace histogram [48, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:35,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-05-06 11:40:35,440 INFO L428 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:35,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:35,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1199568016, now seen corresponding path program 47 times [2021-05-06 11:40:35,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:35,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746246260] [2021-05-06 11:40:35,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:35,446 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:40:35,450 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:35,454 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:40:35,458 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:40:35,465 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:35,468 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:40:35,477 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:35,479 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:35,486 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:40:35,488 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:40:35,495 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:40:35,508 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:35,509 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:40:35,511 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:40:35,521 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:35,525 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:35,534 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:40:35,535 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:40:35,543 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:40:35,556 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:35,574 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:40:35,575 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:35,580 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:40:35,590 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:40:35,598 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:35,599 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:40:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:35,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:40:35,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:35,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:35,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:35,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:35,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:35,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:35,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:35,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:36,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:37,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:38,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:39,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:40,693 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:40,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746246260] [2021-05-06 11:40:40,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1746246260] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:40,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:40,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2021-05-06 11:40:40,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329056487] [2021-05-06 11:40:40,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-05-06 11:40:40,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:40,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-05-06 11:40:40,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=3782, Unknown=0, NotChecked=0, Total=4032 [2021-05-06 11:40:40,694 INFO L87 Difference]: Start difference. First operand 124 states and 125 transitions. Second operand has 61 states, 61 states have (on average 1.9508196721311475) internal successors, (119), 60 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:49,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:49,273 INFO L93 Difference]: Finished difference Result 130 states and 131 transitions. [2021-05-06 11:40:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-06 11:40:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 1.9508196721311475) internal successors, (119), 60 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2021-05-06 11:40:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:49,274 INFO L225 Difference]: With dead ends: 130 [2021-05-06 11:40:49,274 INFO L226 Difference]: Without dead ends: 127 [2021-05-06 11:40:49,274 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 4 SyntacticMatches, 49 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2882 ImplicationChecksByTransitivity, 9213.5ms TimeCoverageRelationStatistics Valid=644, Invalid=13876, Unknown=0, NotChecked=0, Total=14520 [2021-05-06 11:40:49,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-05-06 11:40:49,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2021-05-06 11:40:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 122 states have (on average 1.0163934426229508) internal successors, (124), 122 states have internal predecessors, (124), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:49,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 127 transitions. [2021-05-06 11:40:49,393 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 127 transitions. Word has length 123 [2021-05-06 11:40:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:49,393 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 127 transitions. [2021-05-06 11:40:49,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 61 states, 61 states have (on average 1.9508196721311475) internal successors, (119), 60 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:40:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 127 transitions. [2021-05-06 11:40:49,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-05-06 11:40:49,394 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:49,394 INFO L523 BasicCegarLoop]: trace histogram [49, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:49,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-05-06 11:40:49,394 INFO L428 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:49,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:49,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1741166230, now seen corresponding path program 48 times [2021-05-06 11:40:49,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:49,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502259504] [2021-05-06 11:40:49,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:49,400 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:40:49,405 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:49,409 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:40:49,413 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:40:49,419 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:49,422 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:40:49,431 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:49,433 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:49,440 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:40:49,442 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:40:49,450 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:40:49,463 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:49,463 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:40:49,466 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:40:49,467 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:49,468 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:49,475 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:40:49,477 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:40:49,492 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:40:49,505 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:49,507 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:40:49,508 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:40:49,513 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:40:49,520 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:40:49,527 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:40:49,528 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:40:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:49,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:49,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:40:49,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:49,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:50,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:51,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:52,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:53,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:40:54,710 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:54,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502259504] [2021-05-06 11:40:54,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1502259504] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:54,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:54,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-05-06 11:40:54,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460927873] [2021-05-06 11:40:54,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-05-06 11:40:54,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:54,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-05-06 11:40:54,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=3907, Unknown=0, NotChecked=0, Total=4160 [2021-05-06 11:40:54,711 INFO L87 Difference]: Start difference. First operand 126 states and 127 transitions. Second operand has 62 states, 62 states have (on average 1.9516129032258065) internal successors, (121), 61 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:41:03,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:41:03,871 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2021-05-06 11:41:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-05-06 11:41:03,871 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 1.9516129032258065) internal successors, (121), 61 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2021-05-06 11:41:03,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:41:03,872 INFO L225 Difference]: With dead ends: 132 [2021-05-06 11:41:03,872 INFO L226 Difference]: Without dead ends: 129 [2021-05-06 11:41:03,872 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 4 SyntacticMatches, 50 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2966 ImplicationChecksByTransitivity, 9737.6ms TimeCoverageRelationStatistics Valid=652, Invalid=14354, Unknown=0, NotChecked=0, Total=15006 [2021-05-06 11:41:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-05-06 11:41:03,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2021-05-06 11:41:03,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 124 states have (on average 1.0161290322580645) internal successors, (126), 124 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:41:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2021-05-06 11:41:03,989 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 125 [2021-05-06 11:41:03,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:41:03,989 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2021-05-06 11:41:03,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 1.9516129032258065) internal successors, (121), 61 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:41:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2021-05-06 11:41:03,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-05-06 11:41:03,990 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:41:03,990 INFO L523 BasicCegarLoop]: trace histogram [50, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:41:03,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-05-06 11:41:03,990 INFO L428 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:41:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:41:03,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1768960228, now seen corresponding path program 49 times [2021-05-06 11:41:03,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:41:03,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139710865] [2021-05-06 11:41:03,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:41:03,996 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:41:03,997 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:04,000 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:41:04,008 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:41:04,015 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:41:04,023 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:41:04,033 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:04,034 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:04,043 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:41:04,045 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:41:04,053 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:41:04,065 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:41:04,066 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:41:04,069 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:41:04,078 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:04,079 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:04,087 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:41:04,088 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:41:04,096 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:41:04,109 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:41:04,111 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:41:04,111 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:04,115 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:41:04,122 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:41:04,129 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:41:04,130 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:41:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:41:04,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:41:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:41:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:41:04,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:04,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:05,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:06,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:07,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:08,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:09,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:09,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:09,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:09,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:09,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:09,506 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:41:09,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139710865] [2021-05-06 11:41:09,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [139710865] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:41:09,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:41:09,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2021-05-06 11:41:09,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577962567] [2021-05-06 11:41:09,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-05-06 11:41:09,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:41:09,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-05-06 11:41:09,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=4034, Unknown=0, NotChecked=0, Total=4290 [2021-05-06 11:41:09,508 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand has 63 states, 63 states have (on average 1.9523809523809523) internal successors, (123), 62 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:41:18,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:41:18,727 INFO L93 Difference]: Finished difference Result 134 states and 135 transitions. [2021-05-06 11:41:18,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-05-06 11:41:18,728 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 1.9523809523809523) internal successors, (123), 62 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2021-05-06 11:41:18,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:41:18,728 INFO L225 Difference]: With dead ends: 134 [2021-05-06 11:41:18,728 INFO L226 Difference]: Without dead ends: 131 [2021-05-06 11:41:18,729 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 4 SyntacticMatches, 51 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3051 ImplicationChecksByTransitivity, 9784.0ms TimeCoverageRelationStatistics Valid=660, Invalid=14840, Unknown=0, NotChecked=0, Total=15500 [2021-05-06 11:41:18,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-05-06 11:41:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2021-05-06 11:41:18,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 126 states have (on average 1.0158730158730158) internal successors, (128), 126 states have internal predecessors, (128), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:41:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 131 transitions. [2021-05-06 11:41:18,852 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 131 transitions. Word has length 127 [2021-05-06 11:41:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:41:18,852 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 131 transitions. [2021-05-06 11:41:18,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 1.9523809523809523) internal successors, (123), 62 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:41:18,852 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 131 transitions. [2021-05-06 11:41:18,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-05-06 11:41:18,853 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:41:18,853 INFO L523 BasicCegarLoop]: trace histogram [51, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:41:18,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-05-06 11:41:18,853 INFO L428 AbstractCegarLoop]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:41:18,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:41:18,853 INFO L82 PathProgramCache]: Analyzing trace with hash -843808290, now seen corresponding path program 50 times [2021-05-06 11:41:18,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:41:18,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397130965] [2021-05-06 11:41:18,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:41:18,858 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size [2021-05-06 11:41:18,859 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:18,862 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:41:18,870 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-05-06 11:41:18,877 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:41:18,880 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:41:18,889 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:18,890 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:18,897 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:41:18,899 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:41:18,914 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:41:18,927 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:41:18,928 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:41:18,930 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-06 11:41:18,939 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:18,941 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:18,947 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-06 11:41:18,949 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-06 11:41:18,957 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 60 [2021-05-06 11:41:18,970 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:41:18,974 WARN L240 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size [2021-05-06 11:41:18,978 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:41:18,982 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:41:18,986 WARN L245 tifierPushTermWalker]: treesize reduction 17, result has 69.6 percent of original size 39 [2021-05-06 11:41:18,993 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:41:18,993 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-05-06 11:41:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:41:19,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:41:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:41:19,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:41:19,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:19,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:20,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:21,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:22,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:23,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:24,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:24,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:24,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:24,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:24,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:24,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:41:24,534 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:41:24,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397130965] [2021-05-06 11:41:24,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1397130965] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:41:24,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:41:24,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2021-05-06 11:41:24,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553140151] [2021-05-06 11:41:24,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-05-06 11:41:24,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:41:24,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-05-06 11:41:24,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=4163, Unknown=0, NotChecked=0, Total=4422 [2021-05-06 11:41:24,535 INFO L87 Difference]: Start difference. First operand 130 states and 131 transitions. Second operand has 64 states, 64 states have (on average 1.953125) internal successors, (125), 63 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:41:33,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:41:33,862 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2021-05-06 11:41:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-05-06 11:41:33,863 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 1.953125) internal successors, (125), 63 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2021-05-06 11:41:33,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:41:33,863 INFO L225 Difference]: With dead ends: 133 [2021-05-06 11:41:33,863 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 11:41:33,864 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 4 SyntacticMatches, 52 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3197 ImplicationChecksByTransitivity, 10092.7ms TimeCoverageRelationStatistics Valid=675, Invalid=15581, Unknown=0, NotChecked=0, Total=16256 [2021-05-06 11:41:33,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 11:41:33,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 11:41:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-06 11:41:33,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 11:41:33,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 129 [2021-05-06 11:41:33,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:41:33,865 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 11:41:33,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 1.953125) internal successors, (125), 63 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:41:33,865 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 11:41:33,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 11:41:33,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-05-06 11:41:33,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 11:41:34,378 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 9722 DAG size of output: 9720 [2021-05-06 11:41:36,456 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 9856 DAG size of output: 9367 [2021-05-06 11:41:44,526 WARN L205 SmtUtils]: Spent 7.86 s on a formula simplification. DAG size of input: 9709 DAG size of output: 763 [2021-05-06 11:41:52,578 WARN L205 SmtUtils]: Spent 7.64 s on a formula simplification. DAG size of input: 9353 DAG size of output: 752 [2021-05-06 11:41:52,584 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-05-06 11:41:52,584 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-05-06 11:41:52,584 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-05-06 11:41:52,584 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:41:52,584 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~__return_720~0 |old(~__return_720~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-05-06 11:41:52,584 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:41:52,585 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:41:52,585 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-06 11:41:52,585 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 11:41:52,585 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:41:52,585 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-05-06 11:41:52,585 INFO L198 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-05-06 11:41:52,585 INFO L198 CegarLoopUtils]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2021-05-06 11:41:52,585 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-05-06 11:41:52,585 INFO L194 CegarLoopUtils]: At program point L31(lines 31 184) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= main_~main__x~0 2) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,585 INFO L194 CegarLoopUtils]: At program point L159(lines 43 160) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= main_~main__x~0 5) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,585 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 13 214) the Hoare annotation is: true [2021-05-06 11:41:52,585 INFO L194 CegarLoopUtils]: At program point L19(lines 19 208) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (= main_~main__x~0 0) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,586 INFO L194 CegarLoopUtils]: At program point L147(lines 49 148) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= 50 main_~main__y~0) (<= main_~main__x~0 6)) [2021-05-06 11:41:52,586 INFO L194 CegarLoopUtils]: At program point L135(lines 55 136) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= main_~main__x~0 7) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,586 INFO L194 CegarLoopUtils]: At program point L94(lines 94 103) the Hoare annotation is: (and (= |old(~__return_720~0)| ~__return_720~0) (<= 100 main_~main__x~0) (<= 100 main_~main__y~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse0 (+ v_main_~main__x~0_1836 50))) (or (= .cse0 main_~main__x~0) (and (< .cse0 main_~main__x~0) (< main_~main__x~0 101)))))) (<= main_~main__y~0 100)) [2021-05-06 11:41:52,586 INFO L194 CegarLoopUtils]: At program point L61(lines 61 124) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= main_~main__x~0 7) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,586 INFO L194 CegarLoopUtils]: At program point L123(lines 61 124) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= main_~main__x~0 8) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,586 INFO L194 CegarLoopUtils]: At program point L49(lines 49 148) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= main_~main__x~0 5) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,588 INFO L194 CegarLoopUtils]: At program point L111(lines 67 112) the Hoare annotation is: (let ((.cse0 (= |old(~__return_720~0)| ~__return_720~0))) (or (and (<= 77 main_~main__y~0) .cse0 (<= main_~main__y~0 77) (exists ((v_main_~main__x~0_1087 Int)) (and (<= v_main_~main__x~0_1087 9) (let ((.cse1 (+ v_main_~main__x~0_1087 27))) (or (= .cse1 main_~main__x~0) (and (< main_~main__x~0 78) (< .cse1 main_~main__x~0)))))) (<= 77 main_~main__x~0)) (and .cse0 (<= 53 main_~main__x~0) (<= 53 main_~main__y~0) (<= main_~main__y~0 53) (exists ((v_main_~main__x~0_1087 Int)) (and (<= v_main_~main__x~0_1087 9) (let ((.cse2 (+ v_main_~main__x~0_1087 3))) (or (= .cse2 main_~main__x~0) (and (< main_~main__x~0 54) (< .cse2 main_~main__x~0))))))) (and (<= 52 main_~main__x~0) .cse0 (<= main_~main__y~0 52) (<= 52 main_~main__y~0) (exists ((v_main_~main__x~0_672 Int)) (and (let ((.cse3 (+ v_main_~main__x~0_672 2))) (or (= .cse3 main_~main__x~0) (and (< main_~main__x~0 53) (< .cse3 main_~main__x~0)))) (<= v_main_~main__x~0_672 9)))) (and (<= 96 main_~main__x~0) .cse0 (<= 96 main_~main__y~0) (<= main_~main__y~0 96) (exists ((v_main_~main__x~0_1836 Int)) (and (let ((.cse4 (+ v_main_~main__x~0_1836 46))) (or (and (< .cse4 main_~main__x~0) (< main_~main__x~0 97)) (= .cse4 main_~main__x~0))) (<= v_main_~main__x~0_1836 9)))) (and .cse0 (<= main_~main__y~0 61) (<= 61 main_~main__x~0) (<= 61 main_~main__y~0) (exists ((v_main_~main__x~0_1602 Int)) (and (<= v_main_~main__x~0_1602 9) (let ((.cse5 (+ v_main_~main__x~0_1602 11))) (or (and (< .cse5 main_~main__x~0) (< main_~main__x~0 62)) (= .cse5 main_~main__x~0)))))) (and (<= 90 main_~main__y~0) .cse0 (<= main_~main__y~0 90) (<= 90 main_~main__x~0) (exists ((v_main_~main__x~0_1437 Int)) (and (<= v_main_~main__x~0_1437 9) (let ((.cse6 (+ v_main_~main__x~0_1437 40))) (or (= .cse6 main_~main__x~0) (and (< main_~main__x~0 91) (< .cse6 main_~main__x~0))))))) (and (<= main_~main__y~0 94) (<= 94 main_~main__y~0) .cse0 (exists ((v_main_~main__x~0_1659 Int)) (and (<= v_main_~main__x~0_1659 9) (let ((.cse7 (+ v_main_~main__x~0_1659 44))) (or (and (< main_~main__x~0 95) (< .cse7 main_~main__x~0)) (= .cse7 main_~main__x~0))))) (<= 94 main_~main__x~0)) (and (<= main_~main__y~0 66) .cse0 (<= 66 main_~main__x~0) (<= 66 main_~main__y~0) (exists ((v_main_~main__x~0_1602 Int)) (and (<= v_main_~main__x~0_1602 9) (let ((.cse8 (+ v_main_~main__x~0_1602 16))) (or (and (< main_~main__x~0 67) (< .cse8 main_~main__x~0)) (= .cse8 main_~main__x~0)))))) (and .cse0 (<= main_~main__y~0 95) (<= 95 main_~main__y~0) (exists ((v_main_~main__x~0_1776 Int)) (and (<= v_main_~main__x~0_1776 9) (let ((.cse9 (+ v_main_~main__x~0_1776 45))) (or (= main_~main__x~0 .cse9) (and (< main_~main__x~0 96) (< .cse9 main_~main__x~0)))))) (<= 95 main_~main__x~0)) (and (<= 86 main_~main__x~0) .cse0 (<= main_~main__y~0 86) (exists ((v_main_~main__x~0_1384 Int)) (and (let ((.cse10 (+ v_main_~main__x~0_1384 36))) (or (= .cse10 main_~main__x~0) (and (< main_~main__x~0 87) (< .cse10 main_~main__x~0)))) (<= v_main_~main__x~0_1384 9))) (<= 86 main_~main__y~0)) (and (<= 54 main_~main__x~0) .cse0 (<= 54 main_~main__y~0) (<= main_~main__y~0 54) (exists ((v_main_~main__x~0_601 Int)) (and (<= v_main_~main__x~0_601 9) (let ((.cse11 (+ v_main_~main__x~0_601 4))) (or (= .cse11 main_~main__x~0) (and (< .cse11 main_~main__x~0) (< main_~main__x~0 55))))))) (and .cse0 (<= 88 main_~main__y~0) (<= 88 main_~main__x~0) (<= main_~main__y~0 88) (exists ((v_main_~main__x~0_1332 Int)) (and (<= v_main_~main__x~0_1332 9) (let ((.cse12 (+ v_main_~main__x~0_1332 38))) (or (and (< main_~main__x~0 89) (< .cse12 main_~main__x~0)) (= .cse12 main_~main__x~0)))))) (and .cse0 (<= 97 main_~main__x~0) (<= main_~main__y~0 97) (exists ((v_main_~main__x~0_1717 Int)) (and (let ((.cse13 (+ v_main_~main__x~0_1717 47))) (or (= .cse13 main_~main__x~0) (and (< main_~main__x~0 98) (< .cse13 main_~main__x~0)))) (<= v_main_~main__x~0_1717 9))) (<= 97 main_~main__y~0)) (and .cse0 (<= main_~main__y~0 69) (<= 69 main_~main__x~0) (<= 69 main_~main__y~0) (exists ((v_main_~main__x~0_996 Int)) (and (let ((.cse14 (+ v_main_~main__x~0_996 19))) (or (and (< main_~main__x~0 70) (< .cse14 main_~main__x~0)) (= .cse14 main_~main__x~0))) (<= v_main_~main__x~0_996 9)))) (and .cse0 (<= 100 main_~main__x~0) (<= 100 main_~main__y~0) (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse15 (+ v_main_~main__x~0_1836 50))) (or (= .cse15 main_~main__x~0) (and (< .cse15 main_~main__x~0) (< main_~main__x~0 101)))))) (<= main_~main__y~0 100)) (and .cse0 (<= 83 main_~main__x~0) (<= main_~main__y~0 83) (<= 83 main_~main__y~0) (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse16 (+ v_main_~main__x~0_1836 33))) (or (and (< .cse16 main_~main__x~0) (< main_~main__x~0 84)) (= .cse16 main_~main__x~0)))))) (and .cse0 (<= main_~main__y~0 59) (<= 59 main_~main__y~0) (<= 59 main_~main__x~0) (exists ((v_main_~main__x~0_1717 Int)) (and (let ((.cse17 (+ v_main_~main__x~0_1717 9))) (or (= .cse17 main_~main__x~0) (and (< .cse17 main_~main__x~0) (< main_~main__x~0 60)))) (<= v_main_~main__x~0_1717 9)))) (and .cse0 (exists ((v_main_~main__x~0_1041 Int)) (and (let ((.cse18 (+ v_main_~main__x~0_1041 31))) (or (= main_~main__x~0 .cse18) (and (< .cse18 main_~main__x~0) (< main_~main__x~0 82)))) (<= v_main_~main__x~0_1041 9))) (<= 81 main_~main__y~0) (<= 81 main_~main__x~0) (<= main_~main__y~0 81)) (and .cse0 (<= main_~main__y~0 91) (<= 91 main_~main__y~0) (exists ((v_main_~main__x~0_1332 Int)) (and (<= v_main_~main__x~0_1332 9) (let ((.cse19 (+ v_main_~main__x~0_1332 41))) (or (= .cse19 main_~main__x~0) (and (< .cse19 main_~main__x~0) (< main_~main__x~0 92)))))) (<= 91 main_~main__x~0)) (and .cse0 (<= 82 main_~main__y~0) (<= main_~main__y~0 82) (<= 82 main_~main__x~0) (exists ((v_main_~main__x~0_1231 Int)) (and (let ((.cse20 (+ v_main_~main__x~0_1231 32))) (or (= .cse20 main_~main__x~0) (and (< .cse20 main_~main__x~0) (< main_~main__x~0 83)))) (<= v_main_~main__x~0_1231 9)))) (and .cse0 (<= main_~main__y~0 51) (exists ((v_main_~main__x~0_1281 Int)) (and (let ((.cse21 (+ v_main_~main__x~0_1281 1))) (or (and (< main_~main__x~0 52) (< .cse21 main_~main__x~0)) (= main_~main__x~0 .cse21))) (<= v_main_~main__x~0_1281 9))) (<= 51 main_~main__x~0) (<= 51 main_~main__y~0)) (and .cse0 (<= 78 main_~main__y~0) (<= 78 main_~main__x~0) (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse22 (+ v_main_~main__x~0_1836 28))) (or (and (< .cse22 main_~main__x~0) (< main_~main__x~0 79)) (= .cse22 main_~main__x~0))))) (<= main_~main__y~0 78)) (and (<= main_~main__y~0 56) .cse0 (exists ((v_main_~main__x~0_1776 Int)) (and (<= v_main_~main__x~0_1776 9) (let ((.cse23 (+ v_main_~main__x~0_1776 6))) (or (and (< main_~main__x~0 57) (< .cse23 main_~main__x~0)) (= .cse23 main_~main__x~0))))) (<= 56 main_~main__x~0) (<= 56 main_~main__y~0)) (and (<= 63 main_~main__x~0) .cse0 (<= 63 main_~main__y~0) (<= main_~main__y~0 63) (exists ((v_main_~main__x~0_1087 Int)) (and (let ((.cse24 (+ v_main_~main__x~0_1087 13))) (or (= .cse24 main_~main__x~0) (and (< main_~main__x~0 64) (< .cse24 main_~main__x~0)))) (<= v_main_~main__x~0_1087 9)))) (and .cse0 (<= 93 main_~main__x~0) (exists ((v_main_~main__x~0_1836 Int)) (and (let ((.cse25 (+ v_main_~main__x~0_1836 43))) (or (and (< main_~main__x~0 94) (< .cse25 main_~main__x~0)) (= .cse25 main_~main__x~0))) (<= v_main_~main__x~0_1836 9))) (<= 93 main_~main__y~0) (<= main_~main__y~0 93)) (and (<= 70 main_~main__x~0) .cse0 (<= 70 main_~main__y~0) (exists ((v_main_~main__x~0_1087 Int)) (and (let ((.cse26 (+ v_main_~main__x~0_1087 20))) (or (and (< .cse26 main_~main__x~0) (< main_~main__x~0 71)) (= .cse26 main_~main__x~0))) (<= v_main_~main__x~0_1087 9))) (<= main_~main__y~0 70)) (and .cse0 (<= 74 main_~main__x~0) (<= main_~main__y~0 74) (<= 74 main_~main__y~0) (exists ((v_main_~main__x~0_601 Int)) (and (<= v_main_~main__x~0_601 9) (let ((.cse27 (+ v_main_~main__x~0_601 24))) (or (and (< main_~main__x~0 75) (< .cse27 main_~main__x~0)) (= .cse27 main_~main__x~0)))))) (and .cse0 (<= main_~main__y~0 72) (<= 72 main_~main__y~0) (<= 72 main_~main__x~0) (exists ((v_main_~main__x~0_1836 Int)) (and (let ((.cse28 (+ v_main_~main__x~0_1836 22))) (or (and (< .cse28 main_~main__x~0) (< main_~main__x~0 73)) (= main_~main__x~0 .cse28))) (<= v_main_~main__x~0_1836 9)))) (and .cse0 (<= main_~main__y~0 87) (<= 87 main_~main__y~0) (exists ((v_main_~main__x~0_1491 Int)) (and (<= v_main_~main__x~0_1491 9) (let ((.cse29 (+ v_main_~main__x~0_1491 37))) (or (and (< main_~main__x~0 88) (< .cse29 main_~main__x~0)) (= .cse29 main_~main__x~0))))) (<= 87 main_~main__x~0)) (and .cse0 (<= 75 main_~main__x~0) (<= main_~main__y~0 75) (<= 75 main_~main__y~0) (exists ((v_main_~main__x~0_1087 Int)) (and (<= v_main_~main__x~0_1087 9) (let ((.cse30 (+ v_main_~main__x~0_1087 25))) (or (and (< .cse30 main_~main__x~0) (< main_~main__x~0 76)) (= .cse30 main_~main__x~0)))))) (and .cse0 (<= 84 main_~main__x~0) (<= 84 main_~main__y~0) (<= main_~main__y~0 84) (exists ((v_main_~main__x~0_1602 Int)) (and (<= v_main_~main__x~0_1602 9) (let ((.cse31 (+ v_main_~main__x~0_1602 34))) (or (= .cse31 main_~main__x~0) (and (< .cse31 main_~main__x~0) (< main_~main__x~0 85))))))) (and .cse0 (<= 57 main_~main__x~0) (<= 57 main_~main__y~0) (<= main_~main__y~0 57) (exists ((v_main_~main__x~0_786 Int)) (and (let ((.cse32 (+ v_main_~main__x~0_786 7))) (or (and (< main_~main__x~0 58) (< .cse32 main_~main__x~0)) (= .cse32 main_~main__x~0))) (<= v_main_~main__x~0_786 9)))) (and (<= 89 main_~main__y~0) .cse0 (<= 89 main_~main__x~0) (<= main_~main__y~0 89) (exists ((v_main_~main__x~0_1384 Int)) (and (let ((.cse33 (+ v_main_~main__x~0_1384 39))) (or (= .cse33 main_~main__x~0) (and (< .cse33 main_~main__x~0) (< main_~main__x~0 90)))) (<= v_main_~main__x~0_1384 9)))) (and (<= main_~main__y~0 85) .cse0 (exists ((v_main_~main__x~0_1231 Int)) (and (let ((.cse34 (+ v_main_~main__x~0_1231 35))) (or (and (< main_~main__x~0 86) (< .cse34 main_~main__x~0)) (= .cse34 main_~main__x~0))) (<= v_main_~main__x~0_1231 9))) (<= 85 main_~main__y~0) (<= 85 main_~main__x~0)) (and (<= main_~main__y~0 62) .cse0 (<= 62 main_~main__x~0) (<= 62 main_~main__y~0) (exists ((v_main_~main__x~0_471 Int)) (and (<= v_main_~main__x~0_471 9) (let ((.cse35 (+ v_main_~main__x~0_471 12))) (or (and (< main_~main__x~0 63) (< .cse35 main_~main__x~0)) (= .cse35 main_~main__x~0)))))) (and (<= 76 main_~main__x~0) .cse0 (exists ((v_main_~main__x~0_672 Int)) (and (<= v_main_~main__x~0_672 9) (let ((.cse36 (+ v_main_~main__x~0_672 26))) (or (and (< .cse36 main_~main__x~0) (< main_~main__x~0 77)) (= .cse36 main_~main__x~0))))) (<= 76 main_~main__y~0) (<= main_~main__y~0 76)) (and .cse0 (<= 64 main_~main__y~0) (<= 64 main_~main__x~0) (<= main_~main__y~0 64) (exists ((v_main_~main__x~0_1776 Int)) (and (<= v_main_~main__x~0_1776 9) (let ((.cse37 (+ v_main_~main__x~0_1776 14))) (or (and (< .cse37 main_~main__x~0) (< main_~main__x~0 65)) (= .cse37 main_~main__x~0)))))) (and .cse0 (<= 71 main_~main__y~0) (<= 71 main_~main__x~0) (<= main_~main__y~0 71) (exists ((v_main_~main__x~0_952 Int)) (and (let ((.cse38 (+ v_main_~main__x~0_952 21))) (or (= .cse38 main_~main__x~0) (and (< main_~main__x~0 72) (< .cse38 main_~main__x~0)))) (<= v_main_~main__x~0_952 9)))) (and .cse0 (<= main_~main__y~0 80) (<= 80 main_~main__x~0) (<= 80 main_~main__y~0) (exists ((v_main_~main__x~0_867 Int)) (and (let ((.cse39 (+ v_main_~main__x~0_867 30))) (or (= .cse39 main_~main__x~0) (and (< .cse39 main_~main__x~0) (< main_~main__x~0 81)))) (<= v_main_~main__x~0_867 9)))) (and (<= 98 main_~main__y~0) (<= 98 main_~main__x~0) .cse0 (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse40 (+ v_main_~main__x~0_1836 48))) (or (and (< main_~main__x~0 99) (< .cse40 main_~main__x~0)) (= .cse40 main_~main__x~0))))) (<= main_~main__y~0 98)) (and (<= main_~main__y~0 50) .cse0 (<= 50 main_~main__y~0) (exists ((v_main_~main__x~0_237 Int)) (and (<= v_main_~main__x~0_237 9) (or (and (< main_~main__x~0 51) (< v_main_~main__x~0_237 main_~main__x~0)) (= v_main_~main__x~0_237 main_~main__x~0))))) (and .cse0 (<= 65 main_~main__y~0) (exists ((v_main_~main__x~0_357 Int)) (and (let ((.cse41 (+ v_main_~main__x~0_357 15))) (or (and (< main_~main__x~0 66) (< .cse41 main_~main__x~0)) (= .cse41 main_~main__x~0))) (<= v_main_~main__x~0_357 9))) (<= 65 main_~main__x~0) (<= main_~main__y~0 65)) (and (<= main_~main__y~0 67) .cse0 (<= 67 main_~main__y~0) (<= 67 main_~main__x~0) (exists ((v_main_~main__x~0_412 Int)) (and (<= v_main_~main__x~0_412 9) (let ((.cse42 (+ v_main_~main__x~0_412 17))) (or (= .cse42 main_~main__x~0) (and (< main_~main__x~0 68) (< .cse42 main_~main__x~0))))))) (and .cse0 (<= 79 main_~main__y~0) (<= main_~main__y~0 79) (<= 79 main_~main__x~0) (exists ((v_main_~main__x~0_867 Int)) (and (<= v_main_~main__x~0_867 9) (let ((.cse43 (+ v_main_~main__x~0_867 29))) (or (= .cse43 main_~main__x~0) (and (< .cse43 main_~main__x~0) (< main_~main__x~0 80))))))) (and .cse0 (<= main_~main__y~0 60) (<= 60 main_~main__x~0) (<= 60 main_~main__y~0) (exists ((v_main_~main__x~0_1491 Int)) (and (<= v_main_~main__x~0_1491 9) (let ((.cse44 (+ v_main_~main__x~0_1491 10))) (or (= .cse44 main_~main__x~0) (and (< main_~main__x~0 61) (< .cse44 main_~main__x~0))))))) (and .cse0 (<= 68 main_~main__x~0) (<= main_~main__y~0 68) (<= 68 main_~main__y~0) (exists ((v_main_~main__x~0_1281 Int)) (and (<= v_main_~main__x~0_1281 9) (let ((.cse45 (+ v_main_~main__x~0_1281 18))) (or (and (< .cse45 main_~main__x~0) (< main_~main__x~0 69)) (= .cse45 main_~main__x~0)))))) (and .cse0 (<= main_~main__y~0 99) (<= 99 main_~main__x~0) (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse46 (+ v_main_~main__x~0_1836 49))) (or (= .cse46 main_~main__x~0) (and (< main_~main__x~0 100) (< .cse46 main_~main__x~0)))))) (<= 99 main_~main__y~0)) (and .cse0 (<= main_~main__y~0 73) (<= 73 main_~main__y~0) (<= 73 main_~main__x~0) (exists ((v_main_~main__x~0_1384 Int)) (and (let ((.cse47 (+ v_main_~main__x~0_1384 23))) (or (= .cse47 main_~main__x~0) (and (< .cse47 main_~main__x~0) (< main_~main__x~0 74)))) (<= v_main_~main__x~0_1384 9)))) (and (<= 55 main_~main__x~0) .cse0 (<= 55 main_~main__y~0) (<= main_~main__y~0 55) (exists ((v_main_~main__x~0_1281 Int)) (and (<= v_main_~main__x~0_1281 9) (let ((.cse48 (+ v_main_~main__x~0_1281 5))) (or (= .cse48 main_~main__x~0) (and (< .cse48 main_~main__x~0) (< main_~main__x~0 56))))))) (and .cse0 (<= main_~main__y~0 58) (<= 58 main_~main__y~0) (<= 58 main_~main__x~0) (exists ((v_main_~main__x~0_1602 Int)) (and (<= v_main_~main__x~0_1602 9) (let ((.cse49 (+ v_main_~main__x~0_1602 8))) (or (and (< .cse49 main_~main__x~0) (< main_~main__x~0 59)) (= .cse49 main_~main__x~0)))))) (and .cse0 (<= 92 main_~main__x~0) (exists ((v_main_~main__x~0_1491 Int)) (and (let ((.cse50 (+ v_main_~main__x~0_1491 42))) (or (and (< main_~main__x~0 93) (< .cse50 main_~main__x~0)) (= .cse50 main_~main__x~0))) (<= v_main_~main__x~0_1491 9))) (<= main_~main__y~0 92) (<= 92 main_~main__y~0)))) [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point L74(lines 74 85) the Hoare annotation is: (let ((.cse0 (= |old(~__return_720~0)| ~__return_720~0))) (or (and (<= 77 main_~main__y~0) .cse0 (<= main_~main__y~0 77) (exists ((v_main_~main__x~0_1087 Int)) (and (<= v_main_~main__x~0_1087 9) (let ((.cse1 (+ v_main_~main__x~0_1087 27))) (or (= .cse1 main_~main__x~0) (and (< main_~main__x~0 78) (< .cse1 main_~main__x~0)))))) (<= 77 main_~main__x~0)) (and .cse0 (<= 53 main_~main__x~0) (<= 53 main_~main__y~0) (<= main_~main__y~0 53) (exists ((v_main_~main__x~0_1087 Int)) (and (<= v_main_~main__x~0_1087 9) (let ((.cse2 (+ v_main_~main__x~0_1087 3))) (or (= .cse2 main_~main__x~0) (and (< main_~main__x~0 54) (< .cse2 main_~main__x~0))))))) (and (<= 52 main_~main__x~0) .cse0 (<= main_~main__y~0 52) (<= 52 main_~main__y~0) (exists ((v_main_~main__x~0_672 Int)) (and (let ((.cse3 (+ v_main_~main__x~0_672 2))) (or (= .cse3 main_~main__x~0) (and (< main_~main__x~0 53) (< .cse3 main_~main__x~0)))) (<= v_main_~main__x~0_672 9)))) (and (<= 96 main_~main__x~0) .cse0 (<= 96 main_~main__y~0) (<= main_~main__y~0 96) (exists ((v_main_~main__x~0_1836 Int)) (and (let ((.cse4 (+ v_main_~main__x~0_1836 46))) (or (and (< .cse4 main_~main__x~0) (< main_~main__x~0 97)) (= .cse4 main_~main__x~0))) (<= v_main_~main__x~0_1836 9)))) (and (<= 90 main_~main__y~0) .cse0 (<= main_~main__y~0 90) (<= 90 main_~main__x~0) (exists ((v_main_~main__x~0_1437 Int)) (and (<= v_main_~main__x~0_1437 9) (let ((.cse5 (+ v_main_~main__x~0_1437 40))) (or (= .cse5 main_~main__x~0) (and (< main_~main__x~0 91) (< .cse5 main_~main__x~0))))))) (and (<= main_~main__y~0 94) (<= 94 main_~main__y~0) .cse0 (exists ((v_main_~main__x~0_1659 Int)) (and (<= v_main_~main__x~0_1659 9) (let ((.cse6 (+ v_main_~main__x~0_1659 44))) (or (and (< main_~main__x~0 95) (< .cse6 main_~main__x~0)) (= .cse6 main_~main__x~0))))) (<= 94 main_~main__x~0)) (and .cse0 (<= main_~main__y~0 61) (<= 61 main_~main__x~0) (<= 61 main_~main__y~0) (exists ((v_main_~main__x~0_1602 Int)) (and (<= v_main_~main__x~0_1602 9) (let ((.cse7 (+ v_main_~main__x~0_1602 11))) (or (and (< .cse7 main_~main__x~0) (< main_~main__x~0 62)) (= .cse7 main_~main__x~0)))))) (and .cse0 (<= main_~main__y~0 91) (<= 91 main_~main__y~0) (<= 91 main_~main__x~0) (exists ((v_main_~main__x~0_1437 Int)) (and (<= v_main_~main__x~0_1437 9) (let ((.cse8 (+ v_main_~main__x~0_1437 41))) (or (and (< .cse8 main_~main__x~0) (< main_~main__x~0 92)) (= .cse8 main_~main__x~0)))))) (and (<= main_~main__y~0 66) .cse0 (<= 66 main_~main__x~0) (<= 66 main_~main__y~0) (exists ((v_main_~main__x~0_1602 Int)) (and (<= v_main_~main__x~0_1602 9) (let ((.cse9 (+ v_main_~main__x~0_1602 16))) (or (and (< main_~main__x~0 67) (< .cse9 main_~main__x~0)) (= .cse9 main_~main__x~0)))))) (and .cse0 (<= main_~main__y~0 95) (<= 95 main_~main__y~0) (exists ((v_main_~main__x~0_1776 Int)) (and (<= v_main_~main__x~0_1776 9) (let ((.cse10 (+ v_main_~main__x~0_1776 45))) (or (= main_~main__x~0 .cse10) (and (< main_~main__x~0 96) (< .cse10 main_~main__x~0)))))) (<= 95 main_~main__x~0)) (and (<= 76 main_~main__x~0) .cse0 (exists ((v_main_~main__x~0_1717 Int)) (and (let ((.cse11 (+ v_main_~main__x~0_1717 26))) (or (and (< .cse11 main_~main__x~0) (< main_~main__x~0 77)) (= .cse11 main_~main__x~0))) (<= v_main_~main__x~0_1717 9))) (<= 76 main_~main__y~0) (<= main_~main__y~0 76)) (and (<= 86 main_~main__x~0) .cse0 (<= main_~main__y~0 86) (exists ((v_main_~main__x~0_1384 Int)) (and (let ((.cse12 (+ v_main_~main__x~0_1384 36))) (or (= .cse12 main_~main__x~0) (and (< main_~main__x~0 87) (< .cse12 main_~main__x~0)))) (<= v_main_~main__x~0_1384 9))) (<= 86 main_~main__y~0)) (and .cse0 (<= 88 main_~main__y~0) (<= 88 main_~main__x~0) (<= main_~main__y~0 88) (exists ((v_main_~main__x~0_1332 Int)) (and (<= v_main_~main__x~0_1332 9) (let ((.cse13 (+ v_main_~main__x~0_1332 38))) (or (and (< main_~main__x~0 89) (< .cse13 main_~main__x~0)) (= .cse13 main_~main__x~0)))))) (and (<= 54 main_~main__x~0) .cse0 (<= 54 main_~main__y~0) (<= main_~main__y~0 54) (exists ((v_main_~main__x~0_601 Int)) (and (<= v_main_~main__x~0_601 9) (let ((.cse14 (+ v_main_~main__x~0_601 4))) (or (= .cse14 main_~main__x~0) (and (< .cse14 main_~main__x~0) (< main_~main__x~0 55))))))) (and .cse0 (<= 97 main_~main__x~0) (<= main_~main__y~0 97) (exists ((v_main_~main__x~0_1717 Int)) (and (let ((.cse15 (+ v_main_~main__x~0_1717 47))) (or (= .cse15 main_~main__x~0) (and (< main_~main__x~0 98) (< .cse15 main_~main__x~0)))) (<= v_main_~main__x~0_1717 9))) (<= 97 main_~main__y~0)) (and .cse0 (<= main_~main__y~0 69) (<= 69 main_~main__x~0) (<= 69 main_~main__y~0) (exists ((v_main_~main__x~0_996 Int)) (and (let ((.cse16 (+ v_main_~main__x~0_996 19))) (or (and (< main_~main__x~0 70) (< .cse16 main_~main__x~0)) (= .cse16 main_~main__x~0))) (<= v_main_~main__x~0_996 9)))) (and .cse0 (<= 83 main_~main__x~0) (<= main_~main__y~0 83) (<= 83 main_~main__y~0) (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse17 (+ v_main_~main__x~0_1836 33))) (or (and (< .cse17 main_~main__x~0) (< main_~main__x~0 84)) (= .cse17 main_~main__x~0)))))) (and .cse0 (<= main_~main__y~0 59) (<= 59 main_~main__y~0) (<= 59 main_~main__x~0) (exists ((v_main_~main__x~0_1717 Int)) (and (let ((.cse18 (+ v_main_~main__x~0_1717 9))) (or (= .cse18 main_~main__x~0) (and (< .cse18 main_~main__x~0) (< main_~main__x~0 60)))) (<= v_main_~main__x~0_1717 9)))) (and .cse0 (exists ((v_main_~main__x~0_1041 Int)) (and (let ((.cse19 (+ v_main_~main__x~0_1041 31))) (or (= main_~main__x~0 .cse19) (and (< .cse19 main_~main__x~0) (< main_~main__x~0 82)))) (<= v_main_~main__x~0_1041 9))) (<= 81 main_~main__y~0) (<= 81 main_~main__x~0) (<= main_~main__y~0 81)) (and .cse0 (<= 82 main_~main__y~0) (<= main_~main__y~0 82) (<= 82 main_~main__x~0) (exists ((v_main_~main__x~0_1231 Int)) (and (let ((.cse20 (+ v_main_~main__x~0_1231 32))) (or (= .cse20 main_~main__x~0) (and (< .cse20 main_~main__x~0) (< main_~main__x~0 83)))) (<= v_main_~main__x~0_1231 9)))) (and .cse0 (<= main_~main__y~0 51) (exists ((v_main_~main__x~0_1281 Int)) (and (let ((.cse21 (+ v_main_~main__x~0_1281 1))) (or (and (< main_~main__x~0 52) (< .cse21 main_~main__x~0)) (= main_~main__x~0 .cse21))) (<= v_main_~main__x~0_1281 9))) (<= 51 main_~main__x~0) (<= 51 main_~main__y~0)) (and .cse0 (<= 78 main_~main__y~0) (<= 78 main_~main__x~0) (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse22 (+ v_main_~main__x~0_1836 28))) (or (and (< .cse22 main_~main__x~0) (< main_~main__x~0 79)) (= .cse22 main_~main__x~0))))) (<= main_~main__y~0 78)) (and (<= main_~main__y~0 56) .cse0 (exists ((v_main_~main__x~0_1776 Int)) (and (<= v_main_~main__x~0_1776 9) (let ((.cse23 (+ v_main_~main__x~0_1776 6))) (or (and (< main_~main__x~0 57) (< .cse23 main_~main__x~0)) (= .cse23 main_~main__x~0))))) (<= 56 main_~main__x~0) (<= 56 main_~main__y~0)) (and (<= 63 main_~main__x~0) .cse0 (<= 63 main_~main__y~0) (<= main_~main__y~0 63) (exists ((v_main_~main__x~0_1087 Int)) (and (let ((.cse24 (+ v_main_~main__x~0_1087 13))) (or (= .cse24 main_~main__x~0) (and (< main_~main__x~0 64) (< .cse24 main_~main__x~0)))) (<= v_main_~main__x~0_1087 9)))) (and .cse0 (<= 93 main_~main__x~0) (exists ((v_main_~main__x~0_1836 Int)) (and (let ((.cse25 (+ v_main_~main__x~0_1836 43))) (or (and (< main_~main__x~0 94) (< .cse25 main_~main__x~0)) (= .cse25 main_~main__x~0))) (<= v_main_~main__x~0_1836 9))) (<= 93 main_~main__y~0) (<= main_~main__y~0 93)) (and (<= 70 main_~main__x~0) .cse0 (<= 70 main_~main__y~0) (exists ((v_main_~main__x~0_1087 Int)) (and (let ((.cse26 (+ v_main_~main__x~0_1087 20))) (or (and (< .cse26 main_~main__x~0) (< main_~main__x~0 71)) (= .cse26 main_~main__x~0))) (<= v_main_~main__x~0_1087 9))) (<= main_~main__y~0 70)) (and .cse0 (<= main_~main__y~0 87) (<= 87 main_~main__y~0) (exists ((v_main_~main__x~0_1491 Int)) (and (<= v_main_~main__x~0_1491 9) (let ((.cse27 (+ v_main_~main__x~0_1491 37))) (or (and (< main_~main__x~0 88) (< .cse27 main_~main__x~0)) (= .cse27 main_~main__x~0))))) (<= 87 main_~main__x~0)) (and .cse0 (<= main_~main__y~0 72) (<= 72 main_~main__y~0) (<= 72 main_~main__x~0) (exists ((v_main_~main__x~0_1836 Int)) (and (let ((.cse28 (+ v_main_~main__x~0_1836 22))) (or (and (< .cse28 main_~main__x~0) (< main_~main__x~0 73)) (= main_~main__x~0 .cse28))) (<= v_main_~main__x~0_1836 9)))) (and .cse0 (<= 75 main_~main__x~0) (<= main_~main__y~0 75) (<= 75 main_~main__y~0) (exists ((v_main_~main__x~0_1087 Int)) (and (<= v_main_~main__x~0_1087 9) (let ((.cse29 (+ v_main_~main__x~0_1087 25))) (or (and (< .cse29 main_~main__x~0) (< main_~main__x~0 76)) (= .cse29 main_~main__x~0)))))) (and .cse0 (<= 84 main_~main__x~0) (<= 84 main_~main__y~0) (<= main_~main__y~0 84) (exists ((v_main_~main__x~0_1602 Int)) (and (<= v_main_~main__x~0_1602 9) (let ((.cse30 (+ v_main_~main__x~0_1602 34))) (or (= .cse30 main_~main__x~0) (and (< .cse30 main_~main__x~0) (< main_~main__x~0 85))))))) (and .cse0 (<= 57 main_~main__x~0) (<= 57 main_~main__y~0) (<= main_~main__y~0 57) (exists ((v_main_~main__x~0_786 Int)) (and (let ((.cse31 (+ v_main_~main__x~0_786 7))) (or (and (< main_~main__x~0 58) (< .cse31 main_~main__x~0)) (= .cse31 main_~main__x~0))) (<= v_main_~main__x~0_786 9)))) (and (<= 89 main_~main__y~0) .cse0 (<= 89 main_~main__x~0) (<= main_~main__y~0 89) (exists ((v_main_~main__x~0_1384 Int)) (and (let ((.cse32 (+ v_main_~main__x~0_1384 39))) (or (= .cse32 main_~main__x~0) (and (< .cse32 main_~main__x~0) (< main_~main__x~0 90)))) (<= v_main_~main__x~0_1384 9)))) (and (<= main_~main__y~0 85) .cse0 (exists ((v_main_~main__x~0_1231 Int)) (and (let ((.cse33 (+ v_main_~main__x~0_1231 35))) (or (and (< main_~main__x~0 86) (< .cse33 main_~main__x~0)) (= .cse33 main_~main__x~0))) (<= v_main_~main__x~0_1231 9))) (<= 85 main_~main__y~0) (<= 85 main_~main__x~0)) (and (<= main_~main__y~0 62) .cse0 (<= 62 main_~main__x~0) (<= 62 main_~main__y~0) (exists ((v_main_~main__x~0_471 Int)) (and (<= v_main_~main__x~0_471 9) (let ((.cse34 (+ v_main_~main__x~0_471 12))) (or (and (< main_~main__x~0 63) (< .cse34 main_~main__x~0)) (= .cse34 main_~main__x~0)))))) (and .cse0 (<= 74 main_~main__x~0) (<= main_~main__y~0 74) (exists ((v_main_~main__x~0_672 Int)) (and (<= v_main_~main__x~0_672 9) (let ((.cse35 (+ v_main_~main__x~0_672 24))) (or (= .cse35 main_~main__x~0) (and (< main_~main__x~0 75) (< .cse35 main_~main__x~0)))))) (<= 74 main_~main__y~0)) (and .cse0 (<= 64 main_~main__y~0) (<= 64 main_~main__x~0) (<= main_~main__y~0 64) (exists ((v_main_~main__x~0_1776 Int)) (and (<= v_main_~main__x~0_1776 9) (let ((.cse36 (+ v_main_~main__x~0_1776 14))) (or (and (< .cse36 main_~main__x~0) (< main_~main__x~0 65)) (= .cse36 main_~main__x~0)))))) (and .cse0 (<= main_~main__y~0 80) (<= 80 main_~main__x~0) (<= 80 main_~main__y~0) (exists ((v_main_~main__x~0_867 Int)) (and (let ((.cse37 (+ v_main_~main__x~0_867 30))) (or (= .cse37 main_~main__x~0) (and (< .cse37 main_~main__x~0) (< main_~main__x~0 81)))) (<= v_main_~main__x~0_867 9)))) (and .cse0 (<= 71 main_~main__y~0) (<= 71 main_~main__x~0) (<= main_~main__y~0 71) (exists ((v_main_~main__x~0_952 Int)) (and (let ((.cse38 (+ v_main_~main__x~0_952 21))) (or (= .cse38 main_~main__x~0) (and (< main_~main__x~0 72) (< .cse38 main_~main__x~0)))) (<= v_main_~main__x~0_952 9)))) (and (<= 98 main_~main__y~0) (<= 98 main_~main__x~0) .cse0 (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse39 (+ v_main_~main__x~0_1836 48))) (or (and (< main_~main__x~0 99) (< .cse39 main_~main__x~0)) (= .cse39 main_~main__x~0))))) (<= main_~main__y~0 98)) (and (<= main_~main__y~0 50) .cse0 (<= 50 main_~main__y~0) (exists ((v_main_~main__x~0_237 Int)) (and (<= v_main_~main__x~0_237 9) (or (and (< main_~main__x~0 51) (< v_main_~main__x~0_237 main_~main__x~0)) (= v_main_~main__x~0_237 main_~main__x~0))))) (and (<= main_~main__y~0 67) .cse0 (<= 67 main_~main__y~0) (<= 67 main_~main__x~0) (exists ((v_main_~main__x~0_412 Int)) (and (<= v_main_~main__x~0_412 9) (let ((.cse40 (+ v_main_~main__x~0_412 17))) (or (= .cse40 main_~main__x~0) (and (< main_~main__x~0 68) (< .cse40 main_~main__x~0))))))) (and .cse0 (<= 65 main_~main__y~0) (exists ((v_main_~main__x~0_357 Int)) (and (let ((.cse41 (+ v_main_~main__x~0_357 15))) (or (and (< main_~main__x~0 66) (< .cse41 main_~main__x~0)) (= .cse41 main_~main__x~0))) (<= v_main_~main__x~0_357 9))) (<= 65 main_~main__x~0) (<= main_~main__y~0 65)) (and .cse0 (<= 79 main_~main__y~0) (<= main_~main__y~0 79) (<= 79 main_~main__x~0) (exists ((v_main_~main__x~0_867 Int)) (and (<= v_main_~main__x~0_867 9) (let ((.cse42 (+ v_main_~main__x~0_867 29))) (or (= .cse42 main_~main__x~0) (and (< .cse42 main_~main__x~0) (< main_~main__x~0 80))))))) (and .cse0 (<= 68 main_~main__x~0) (<= main_~main__y~0 68) (<= 68 main_~main__y~0) (exists ((v_main_~main__x~0_502 Int)) (and (<= v_main_~main__x~0_502 9) (let ((.cse43 (+ v_main_~main__x~0_502 18))) (or (= .cse43 main_~main__x~0) (and (< .cse43 main_~main__x~0) (< main_~main__x~0 69))))))) (and .cse0 (<= main_~main__y~0 60) (<= 60 main_~main__x~0) (<= 60 main_~main__y~0) (exists ((v_main_~main__x~0_1491 Int)) (and (<= v_main_~main__x~0_1491 9) (let ((.cse44 (+ v_main_~main__x~0_1491 10))) (or (= .cse44 main_~main__x~0) (and (< main_~main__x~0 61) (< .cse44 main_~main__x~0))))))) (and .cse0 (<= main_~main__y~0 99) (<= 99 main_~main__x~0) (exists ((v_main_~main__x~0_1836 Int)) (and (<= v_main_~main__x~0_1836 9) (let ((.cse45 (+ v_main_~main__x~0_1836 49))) (or (= .cse45 main_~main__x~0) (and (< main_~main__x~0 100) (< .cse45 main_~main__x~0)))))) (<= 99 main_~main__y~0)) (and .cse0 (<= main_~main__y~0 73) (<= 73 main_~main__y~0) (<= 73 main_~main__x~0) (exists ((v_main_~main__x~0_1384 Int)) (and (let ((.cse46 (+ v_main_~main__x~0_1384 23))) (or (= .cse46 main_~main__x~0) (and (< .cse46 main_~main__x~0) (< main_~main__x~0 74)))) (<= v_main_~main__x~0_1384 9)))) (and (<= 55 main_~main__x~0) .cse0 (<= 55 main_~main__y~0) (<= main_~main__y~0 55) (exists ((v_main_~main__x~0_1281 Int)) (and (<= v_main_~main__x~0_1281 9) (let ((.cse47 (+ v_main_~main__x~0_1281 5))) (or (= .cse47 main_~main__x~0) (and (< .cse47 main_~main__x~0) (< main_~main__x~0 56))))))) (and .cse0 (<= main_~main__y~0 58) (<= 58 main_~main__y~0) (<= 58 main_~main__x~0) (exists ((v_main_~main__x~0_1602 Int)) (and (<= v_main_~main__x~0_1602 9) (let ((.cse48 (+ v_main_~main__x~0_1602 8))) (or (and (< .cse48 main_~main__x~0) (< main_~main__x~0 59)) (= .cse48 main_~main__x~0)))))) (and .cse0 (<= 92 main_~main__x~0) (exists ((v_main_~main__x~0_1491 Int)) (and (let ((.cse49 (+ v_main_~main__x~0_1491 42))) (or (and (< main_~main__x~0 93) (< .cse49 main_~main__x~0)) (= .cse49 main_~main__x~0))) (<= v_main_~main__x~0_1491 9))) (<= main_~main__y~0 92) (<= 92 main_~main__y~0)))) [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point L37(lines 37 172) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= 50 main_~main__y~0) (<= main_~main__x~0 3)) [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point L25(lines 25 196) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= 50 main_~main__y~0) (<= main_~main__x~0 1)) [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point L17(lines 17 213) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (= main_~main__x~0 0) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point L207(lines 19 208) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= 50 main_~main__y~0) (<= main_~main__x~0 1)) [2021-05-06 11:41:52,590 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 13 214) the Hoare annotation is: true [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point L67(lines 67 112) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= main_~main__x~0 8) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point L195(lines 25 196) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= main_~main__x~0 2) (<= 50 main_~main__y~0)) [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point L96(line 96) the Hoare annotation is: false [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) the Hoare annotation is: false [2021-05-06 11:41:52,590 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 13 214) the Hoare annotation is: (= |old(~__return_720~0)| ~__return_720~0) [2021-05-06 11:41:52,591 INFO L194 CegarLoopUtils]: At program point L55(lines 55 136) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= 50 main_~main__y~0) (<= main_~main__x~0 6)) [2021-05-06 11:41:52,591 INFO L194 CegarLoopUtils]: At program point L183(lines 31 184) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= 50 main_~main__y~0) (<= main_~main__x~0 3)) [2021-05-06 11:41:52,591 INFO L194 CegarLoopUtils]: At program point L43(lines 43 160) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= 50 main_~main__y~0) (<= main_~main__x~0 4)) [2021-05-06 11:41:52,591 INFO L194 CegarLoopUtils]: At program point L171(lines 37 172) the Hoare annotation is: (and (<= main_~main__y~0 50) (= |old(~__return_720~0)| ~__return_720~0) (<= 50 main_~main__y~0) (<= main_~main__x~0 4)) [2021-05-06 11:41:52,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,623 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,623 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,623 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,623 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,632 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,640 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,640 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,640 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,640 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,640 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,650 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,650 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,650 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,650 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,650 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,650 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,650 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,650 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,661 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,661 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,661 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,661 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,665 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,665 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,665 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,665 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,665 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,674 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,674 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,674 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,674 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,674 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,674 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 11:41:52 BoogieIcfgContainer [2021-05-06 11:41:52,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 11:41:52,688 INFO L168 Benchmark]: Toolchain (without parser) took 356872.88 ms. Allocated memory was 189.8 MB in the beginning and 429.9 MB in the end (delta: 240.1 MB). Free memory was 155.1 MB in the beginning and 354.1 MB in the end (delta: -199.0 MB). Peak memory consumption was 282.6 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:52,688 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 189.8 MB. Free memory is still 171.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 11:41:52,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.17 ms. Allocated memory is still 189.8 MB. Free memory was 154.9 MB in the beginning and 173.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:52,688 INFO L168 Benchmark]: Boogie Preprocessor took 60.48 ms. Allocated memory is still 189.8 MB. Free memory was 173.1 MB in the beginning and 171.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:52,689 INFO L168 Benchmark]: RCFGBuilder took 420.69 ms. Allocated memory is still 189.8 MB. Free memory was 171.5 MB in the beginning and 152.1 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:52,689 INFO L168 Benchmark]: TraceAbstraction took 356117.20 ms. Allocated memory was 189.8 MB in the beginning and 429.9 MB in the end (delta: 240.1 MB). Free memory was 152.1 MB in the beginning and 354.1 MB in the end (delta: -202.0 MB). Peak memory consumption was 280.2 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:52,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 189.8 MB. Free memory is still 171.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 267.17 ms. Allocated memory is still 189.8 MB. Free memory was 154.9 MB in the beginning and 173.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.48 ms. Allocated memory is still 189.8 MB. Free memory was 173.1 MB in the beginning and 171.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 420.69 ms. Allocated memory is still 189.8 MB. Free memory was 171.5 MB in the beginning and 152.1 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 356117.20 ms. Allocated memory was 189.8 MB in the beginning and 429.9 MB in the end (delta: 240.1 MB). Free memory was 152.1 MB in the beginning and 354.1 MB in the end (delta: -202.0 MB). Peak memory consumption was 280.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 337222.8ms, OverallIterations: 58, TraceHistogramMax: 51, EmptinessCheckTime: 38.8ms, AutomataDifference: 206026.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 18717.9ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 551 SDtfs, 2893 SDslu, 7229 SDs, 0 SdLazy, 154158 SolverSat, 2578 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78351.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5491 GetRequests, 231 SyntacticMatches, 1375 SemanticMatches, 3885 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71306 ImplicationChecksByTransitivity, 222632.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=57, InterpolantAutomatonStates: 1988, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2374.2ms AutomataMinimizationTime, 58 MinimizatonAttempts, 49 StatesRemovedByMinimization, 49 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 33 LocationsWithAnnotation, 33 PreInvPairs, 159 NumberOfFragments, 3642 HoareAnnotationTreeSize, 33 FomulaSimplifications, 118782440171893079 FormulaSimplificationTreeSizeReduction, 2606.3ms HoareSimplificationTime, 33 FomulaSimplificationsInter, 53936 FormulaSimplificationTreeSizeReductionInter, 16047.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((main__y <= 50 && \old(__return_720) == __return_720) && 50 <= main__y) && main__x <= 4 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: ((main__y <= 50 && \old(__return_720) == __return_720) && main__x <= 8) && 50 <= main__y - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((main__y <= 50 && \old(__return_720) == __return_720) && 50 <= main__y) && main__x <= 3 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((main__y <= 50 && \old(__return_720) == __return_720) && main__x <= 7) && 50 <= main__y - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((main__y <= 50 && \old(__return_720) == __return_720) && main__x <= 2) && 50 <= main__y - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((main__y <= 50 && \old(__return_720) == __return_720) && 50 <= main__y) && main__x <= 6 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((main__y <= 50 && \old(__return_720) == __return_720) && 50 <= main__y) && main__x <= 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: ((main__y <= 50 && \old(__return_720) == __return_720) && main__x <= 5) && 50 <= main__y - InvariantResult [Line: 67]: Loop Invariant [2021-05-06 11:41:52,697 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,697 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1437,QUANTIFIED] [2021-05-06 11:41:52,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1659,QUANTIFIED] [2021-05-06 11:41:52,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_996,QUANTIFIED] [2021-05-06 11:41:52,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1717,QUANTIFIED] [2021-05-06 11:41:52,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1041,QUANTIFIED] [2021-05-06 11:41:52,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1332,QUANTIFIED] [2021-05-06 11:41:52,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_601,QUANTIFIED] [2021-05-06 11:41:52,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1087,QUANTIFIED] [2021-05-06 11:41:52,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_786,QUANTIFIED] [2021-05-06 11:41:52,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1231,QUANTIFIED] [2021-05-06 11:41:52,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_471,QUANTIFIED] [2021-05-06 11:41:52,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_672,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1776,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_952,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_237,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_357,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_412,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_867,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1836,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1384,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1281,QUANTIFIED] [2021-05-06 11:41:52,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1602,QUANTIFIED] [2021-05-06 11:41:52,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] [2021-05-06 11:41:52,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_1491,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((77 <= main__y && \old(__return_720) == __return_720) && main__y <= 77) && (\exists v_main_~main__x~0_1087 : int :: v_main_~main__x~0_1087 <= 9 && (v_main_~main__x~0_1087 + 27 == main__x || (main__x < 78 && v_main_~main__x~0_1087 + 27 < main__x)))) && 77 <= main__x) || ((((\old(__return_720) == __return_720 && 53 <= main__x) && 53 <= main__y) && main__y <= 53) && (\exists v_main_~main__x~0_1087 : int :: v_main_~main__x~0_1087 <= 9 && (v_main_~main__x~0_1087 + 3 == main__x || (main__x < 54 && v_main_~main__x~0_1087 + 3 < main__x))))) || ((((52 <= main__x && \old(__return_720) == __return_720) && main__y <= 52) && 52 <= main__y) && (\exists v_main_~main__x~0_672 : int :: (v_main_~main__x~0_672 + 2 == main__x || (main__x < 53 && v_main_~main__x~0_672 + 2 < main__x)) && v_main_~main__x~0_672 <= 9))) || ((((96 <= main__x && \old(__return_720) == __return_720) && 96 <= main__y) && main__y <= 96) && (\exists v_main_~main__x~0_1836 : int :: ((v_main_~main__x~0_1836 + 46 < main__x && main__x < 97) || v_main_~main__x~0_1836 + 46 == main__x) && v_main_~main__x~0_1836 <= 9))) || ((((\old(__return_720) == __return_720 && main__y <= 61) && 61 <= main__x) && 61 <= main__y) && (\exists v_main_~main__x~0_1602 : int :: v_main_~main__x~0_1602 <= 9 && ((v_main_~main__x~0_1602 + 11 < main__x && main__x < 62) || v_main_~main__x~0_1602 + 11 == main__x)))) || ((((90 <= main__y && \old(__return_720) == __return_720) && main__y <= 90) && 90 <= main__x) && (\exists v_main_~main__x~0_1437 : int :: v_main_~main__x~0_1437 <= 9 && (v_main_~main__x~0_1437 + 40 == main__x || (main__x < 91 && v_main_~main__x~0_1437 + 40 < main__x))))) || ((((main__y <= 94 && 94 <= main__y) && \old(__return_720) == __return_720) && (\exists v_main_~main__x~0_1659 : int :: v_main_~main__x~0_1659 <= 9 && ((main__x < 95 && v_main_~main__x~0_1659 + 44 < main__x) || v_main_~main__x~0_1659 + 44 == main__x))) && 94 <= main__x)) || ((((main__y <= 66 && \old(__return_720) == __return_720) && 66 <= main__x) && 66 <= main__y) && (\exists v_main_~main__x~0_1602 : int :: v_main_~main__x~0_1602 <= 9 && ((main__x < 67 && v_main_~main__x~0_1602 + 16 < main__x) || v_main_~main__x~0_1602 + 16 == main__x)))) || ((((\old(__return_720) == __return_720 && main__y <= 95) && 95 <= main__y) && (\exists v_main_~main__x~0_1776 : int :: v_main_~main__x~0_1776 <= 9 && (main__x == v_main_~main__x~0_1776 + 45 || (main__x < 96 && v_main_~main__x~0_1776 + 45 < main__x)))) && 95 <= main__x)) || ((((86 <= main__x && \old(__return_720) == __return_720) && main__y <= 86) && (\exists v_main_~main__x~0_1384 : int :: (v_main_~main__x~0_1384 + 36 == main__x || (main__x < 87 && v_main_~main__x~0_1384 + 36 < main__x)) && v_main_~main__x~0_1384 <= 9)) && 86 <= main__y)) || ((((54 <= main__x && \old(__return_720) == __return_720) && 54 <= main__y) && main__y <= 54) && (\exists v_main_~main__x~0_601 : int :: v_main_~main__x~0_601 <= 9 && (v_main_~main__x~0_601 + 4 == main__x || (v_main_~main__x~0_601 + 4 < main__x && main__x < 55))))) || ((((\old(__return_720) == __return_720 && 88 <= main__y) && 88 <= main__x) && main__y <= 88) && (\exists v_main_~main__x~0_1332 : int :: v_main_~main__x~0_1332 <= 9 && ((main__x < 89 && v_main_~main__x~0_1332 + 38 < main__x) || v_main_~main__x~0_1332 + 38 == main__x)))) || ((((\old(__return_720) == __return_720 && 97 <= main__x) && main__y <= 97) && (\exists v_main_~main__x~0_1717 : int :: (v_main_~main__x~0_1717 + 47 == main__x || (main__x < 98 && v_main_~main__x~0_1717 + 47 < main__x)) && v_main_~main__x~0_1717 <= 9)) && 97 <= main__y)) || ((((\old(__return_720) == __return_720 && main__y <= 69) && 69 <= main__x) && 69 <= main__y) && (\exists v_main_~main__x~0_996 : int :: ((main__x < 70 && v_main_~main__x~0_996 + 19 < main__x) || v_main_~main__x~0_996 + 19 == main__x) && v_main_~main__x~0_996 <= 9))) || ((((\old(__return_720) == __return_720 && 100 <= main__x) && 100 <= main__y) && (\exists v_main_~main__x~0_1836 : int :: v_main_~main__x~0_1836 <= 9 && (v_main_~main__x~0_1836 + 50 == main__x || (v_main_~main__x~0_1836 + 50 < main__x && main__x < 101)))) && main__y <= 100)) || ((((\old(__return_720) == __return_720 && 83 <= main__x) && main__y <= 83) && 83 <= main__y) && (\exists v_main_~main__x~0_1836 : int :: v_main_~main__x~0_1836 <= 9 && ((v_main_~main__x~0_1836 + 33 < main__x && main__x < 84) || v_main_~main__x~0_1836 + 33 == main__x)))) || ((((\old(__return_720) == __return_720 && main__y <= 59) && 59 <= main__y) && 59 <= main__x) && (\exists v_main_~main__x~0_1717 : int :: (v_main_~main__x~0_1717 + 9 == main__x || (v_main_~main__x~0_1717 + 9 < main__x && main__x < 60)) && v_main_~main__x~0_1717 <= 9))) || ((((\old(__return_720) == __return_720 && (\exists v_main_~main__x~0_1041 : int :: (main__x == v_main_~main__x~0_1041 + 31 || (v_main_~main__x~0_1041 + 31 < main__x && main__x < 82)) && v_main_~main__x~0_1041 <= 9)) && 81 <= main__y) && 81 <= main__x) && main__y <= 81)) || ((((\old(__return_720) == __return_720 && main__y <= 91) && 91 <= main__y) && (\exists v_main_~main__x~0_1332 : int :: v_main_~main__x~0_1332 <= 9 && (v_main_~main__x~0_1332 + 41 == main__x || (v_main_~main__x~0_1332 + 41 < main__x && main__x < 92)))) && 91 <= main__x)) || ((((\old(__return_720) == __return_720 && 82 <= main__y) && main__y <= 82) && 82 <= main__x) && (\exists v_main_~main__x~0_1231 : int :: (v_main_~main__x~0_1231 + 32 == main__x || (v_main_~main__x~0_1231 + 32 < main__x && main__x < 83)) && v_main_~main__x~0_1231 <= 9))) || ((((\old(__return_720) == __return_720 && main__y <= 51) && (\exists v_main_~main__x~0_1281 : int :: ((main__x < 52 && v_main_~main__x~0_1281 + 1 < main__x) || main__x == v_main_~main__x~0_1281 + 1) && v_main_~main__x~0_1281 <= 9)) && 51 <= main__x) && 51 <= main__y)) || ((((\old(__return_720) == __return_720 && 78 <= main__y) && 78 <= main__x) && (\exists v_main_~main__x~0_1836 : int :: v_main_~main__x~0_1836 <= 9 && ((v_main_~main__x~0_1836 + 28 < main__x && main__x < 79) || v_main_~main__x~0_1836 + 28 == main__x))) && main__y <= 78)) || ((((main__y <= 56 && \old(__return_720) == __return_720) && (\exists v_main_~main__x~0_1776 : int :: v_main_~main__x~0_1776 <= 9 && ((main__x < 57 && v_main_~main__x~0_1776 + 6 < main__x) || v_main_~main__x~0_1776 + 6 == main__x))) && 56 <= main__x) && 56 <= main__y)) || ((((63 <= main__x && \old(__return_720) == __return_720) && 63 <= main__y) && main__y <= 63) && (\exists v_main_~main__x~0_1087 : int :: (v_main_~main__x~0_1087 + 13 == main__x || (main__x < 64 && v_main_~main__x~0_1087 + 13 < main__x)) && v_main_~main__x~0_1087 <= 9))) || ((((\old(__return_720) == __return_720 && 93 <= main__x) && (\exists v_main_~main__x~0_1836 : int :: ((main__x < 94 && v_main_~main__x~0_1836 + 43 < main__x) || v_main_~main__x~0_1836 + 43 == main__x) && v_main_~main__x~0_1836 <= 9)) && 93 <= main__y) && main__y <= 93)) || ((((70 <= main__x && \old(__return_720) == __return_720) && 70 <= main__y) && (\exists v_main_~main__x~0_1087 : int :: ((v_main_~main__x~0_1087 + 20 < main__x && main__x < 71) || v_main_~main__x~0_1087 + 20 == main__x) && v_main_~main__x~0_1087 <= 9)) && main__y <= 70)) || ((((\old(__return_720) == __return_720 && 74 <= main__x) && main__y <= 74) && 74 <= main__y) && (\exists v_main_~main__x~0_601 : int :: v_main_~main__x~0_601 <= 9 && ((main__x < 75 && v_main_~main__x~0_601 + 24 < main__x) || v_main_~main__x~0_601 + 24 == main__x)))) || ((((\old(__return_720) == __return_720 && main__y <= 72) && 72 <= main__y) && 72 <= main__x) && (\exists v_main_~main__x~0_1836 : int :: ((v_main_~main__x~0_1836 + 22 < main__x && main__x < 73) || main__x == v_main_~main__x~0_1836 + 22) && v_main_~main__x~0_1836 <= 9))) || ((((\old(__return_720) == __return_720 && main__y <= 87) && 87 <= main__y) && (\exists v_main_~main__x~0_1491 : int :: v_main_~main__x~0_1491 <= 9 && ((main__x < 88 && v_main_~main__x~0_1491 + 37 < main__x) || v_main_~main__x~0_1491 + 37 == main__x))) && 87 <= main__x)) || ((((\old(__return_720) == __return_720 && 75 <= main__x) && main__y <= 75) && 75 <= main__y) && (\exists v_main_~main__x~0_1087 : int :: v_main_~main__x~0_1087 <= 9 && ((v_main_~main__x~0_1087 + 25 < main__x && main__x < 76) || v_main_~main__x~0_1087 + 25 == main__x)))) || ((((\old(__return_720) == __return_720 && 84 <= main__x) && 84 <= main__y) && main__y <= 84) && (\exists v_main_~main__x~0_1602 : int :: v_main_~main__x~0_1602 <= 9 && (v_main_~main__x~0_1602 + 34 == main__x || (v_main_~main__x~0_1602 + 34 < main__x && main__x < 85))))) || ((((\old(__return_720) == __return_720 && 57 <= main__x) && 57 <= main__y) && main__y <= 57) && (\exists v_main_~main__x~0_786 : int :: ((main__x < 58 && v_main_~main__x~0_786 + 7 < main__x) || v_main_~main__x~0_786 + 7 == main__x) && v_main_~main__x~0_786 <= 9))) || ((((89 <= main__y && \old(__return_720) == __return_720) && 89 <= main__x) && main__y <= 89) && (\exists v_main_~main__x~0_1384 : int :: (v_main_~main__x~0_1384 + 39 == main__x || (v_main_~main__x~0_1384 + 39 < main__x && main__x < 90)) && v_main_~main__x~0_1384 <= 9))) || ((((main__y <= 85 && \old(__return_720) == __return_720) && (\exists v_main_~main__x~0_1231 : int :: ((main__x < 86 && v_main_~main__x~0_1231 + 35 < main__x) || v_main_~main__x~0_1231 + 35 == main__x) && v_main_~main__x~0_1231 <= 9)) && 85 <= main__y) && 85 <= main__x)) || ((((main__y <= 62 && \old(__return_720) == __return_720) && 62 <= main__x) && 62 <= main__y) && (\exists v_main_~main__x~0_471 : int :: v_main_~main__x~0_471 <= 9 && ((main__x < 63 && v_main_~main__x~0_471 + 12 < main__x) || v_main_~main__x~0_471 + 12 == main__x)))) || ((((76 <= main__x && \old(__return_720) == __return_720) && (\exists v_main_~main__x~0_672 : int :: v_main_~main__x~0_672 <= 9 && ((v_main_~main__x~0_672 + 26 < main__x && main__x < 77) || v_main_~main__x~0_672 + 26 == main__x))) && 76 <= main__y) && main__y <= 76)) || ((((\old(__return_720) == __return_720 && 64 <= main__y) && 64 <= main__x) && main__y <= 64) && (\exists v_main_~main__x~0_1776 : int :: v_main_~main__x~0_1776 <= 9 && ((v_main_~main__x~0_1776 + 14 < main__x && main__x < 65) || v_main_~main__x~0_1776 + 14 == main__x)))) || ((((\old(__return_720) == __return_720 && 71 <= main__y) && 71 <= main__x) && main__y <= 71) && (\exists v_main_~main__x~0_952 : int :: (v_main_~main__x~0_952 + 21 == main__x || (main__x < 72 && v_main_~main__x~0_952 + 21 < main__x)) && v_main_~main__x~0_952 <= 9))) || ((((\old(__return_720) == __return_720 && main__y <= 80) && 80 <= main__x) && 80 <= main__y) && (\exists v_main_~main__x~0_867 : int :: (v_main_~main__x~0_867 + 30 == main__x || (v_main_~main__x~0_867 + 30 < main__x && main__x < 81)) && v_main_~main__x~0_867 <= 9))) || ((((98 <= main__y && 98 <= main__x) && \old(__return_720) == __return_720) && (\exists v_main_~main__x~0_1836 : int :: v_main_~main__x~0_1836 <= 9 && ((main__x < 99 && v_main_~main__x~0_1836 + 48 < main__x) || v_main_~main__x~0_1836 + 48 == main__x))) && main__y <= 98)) || (((main__y <= 50 && \old(__return_720) == __return_720) && 50 <= main__y) && (\exists v_main_~main__x~0_237 : int :: v_main_~main__x~0_237 <= 9 && ((main__x < 51 && v_main_~main__x~0_237 < main__x) || v_main_~main__x~0_237 == main__x)))) || ((((\old(__return_720) == __return_720 && 65 <= main__y) && (\exists v_main_~main__x~0_357 : int :: ((main__x < 66 && v_main_~main__x~0_357 + 15 < main__x) || v_main_~main__x~0_357 + 15 == main__x) && v_main_~main__x~0_357 <= 9)) && 65 <= main__x) && main__y <= 65)) || ((((main__y <= 67 && \old(__return_720) == __return_720) && 67 <= main__y) && 67 <= main__x) && (\exists v_main_~main__x~0_412 : int :: v_main_~main__x~0_412 <= 9 && (v_main_~main__x~0_412 + 17 == main__x || (main__x < 68 && v_main_~main__x~0_412 + 17 < main__x))))) || ((((\old(__return_720) == __return_720 && 79 <= main__y) && main__y <= 79) && 79 <= main__x) && (\exists v_main_~main__x~0_867 : int :: v_main_~main__x~0_867 <= 9 && (v_main_~main__x~0_867 + 29 == main__x || (v_main_~main__x~0_867 + 29 < main__x && main__x < 80))))) || ((((\old(__return_720) == __return_720 && main__y <= 60) && 60 <= main__x) && 60 <= main__y) && (\exists v_main_~main__x~0_1491 : int :: v_main_~main__x~0_1491 <= 9 && (v_main_~main__x~0_1491 + 10 == main__x || (main__x < 61 && v_main_~main__x~0_1491 + 10 < main__x))))) || ((((\old(__return_720) == __return_720 && 68 <= main__x) && main__y <= 68) && 68 <= main__y) && (\exists v_main_~main__x~0_1281 : int :: v_main_~main__x~0_1281 <= 9 && ((v_main_~main__x~0_1281 + 18 < main__x && main__x < 69) || v_main_~main__x~0_1281 + 18 == main__x)))) || ((((\old(__return_720) == __return_720 && main__y <= 99) && 99 <= main__x) && (\exists v_main_~main__x~0_1836 : int :: v_main_~main__x~0_1836 <= 9 && (v_main_~main__x~0_1836 + 49 == main__x || (main__x < 100 && v_main_~main__x~0_1836 + 49 < main__x)))) && 99 <= main__y)) || ((((\old(__return_720) == __return_720 && main__y <= 73) && 73 <= main__y) && 73 <= main__x) && (\exists v_main_~main__x~0_1384 : int :: (v_main_~main__x~0_1384 + 23 == main__x || (v_main_~main__x~0_1384 + 23 < main__x && main__x < 74)) && v_main_~main__x~0_1384 <= 9))) || ((((55 <= main__x && \old(__return_720) == __return_720) && 55 <= main__y) && main__y <= 55) && (\exists v_main_~main__x~0_1281 : int :: v_main_~main__x~0_1281 <= 9 && (v_main_~main__x~0_1281 + 5 == main__x || (v_main_~main__x~0_1281 + 5 < main__x && main__x < 56))))) || ((((\old(__return_720) == __return_720 && main__y <= 58) && 58 <= main__y) && 58 <= main__x) && (\exists v_main_~main__x~0_1602 : int :: v_main_~main__x~0_1602 <= 9 && ((v_main_~main__x~0_1602 + 8 < main__x && main__x < 59) || v_main_~main__x~0_1602 + 8 == main__x)))) || ((((\old(__return_720) == __return_720 && 92 <= main__x) && (\exists v_main_~main__x~0_1491 : int :: ((main__x < 93 && v_main_~main__x~0_1491 + 42 < main__x) || v_main_~main__x~0_1491 + 42 == main__x) && v_main_~main__x~0_1491 <= 9)) && main__y <= 92) && 92 <= main__y) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...