/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-industry-pattern/aiob_4.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 11:38:45,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 11:38:45,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 11:38:45,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 11:38:45,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 11:38:45,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 11:38:45,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 11:38:45,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 11:38:45,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 11:38:45,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 11:38:45,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 11:38:45,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 11:38:45,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 11:38:45,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 11:38:45,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 11:38:45,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 11:38:45,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 11:38:45,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 11:38:45,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 11:38:45,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 11:38:45,223 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 11:38:45,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 11:38:45,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 11:38:45,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 11:38:45,241 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 11:38:45,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 11:38:45,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 11:38:45,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 11:38:45,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 11:38:45,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 11:38:45,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 11:38:45,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 11:38:45,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 11:38:45,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 11:38:45,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 11:38:45,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 11:38:45,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 11:38:45,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 11:38:45,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 11:38:45,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:38:45,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 11:38:45,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-06 11:38:45,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 11:38:45,245 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-06 11:38:45,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 11:38:45,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 11:38:45,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 11:38:45,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 11:38:45,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 11:38:45,618 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 11:38:45,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2021-05-06 11:38:45,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9756cdcd1/4f51b2f5163e47f4b9cbdeeeb1ff899c/FLAG87cdeac3d [2021-05-06 11:38:46,174 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 11:38:46,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2021-05-06 11:38:46,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9756cdcd1/4f51b2f5163e47f4b9cbdeeeb1ff899c/FLAG87cdeac3d [2021-05-06 11:38:46,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9756cdcd1/4f51b2f5163e47f4b9cbdeeeb1ff899c [2021-05-06 11:38:46,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 11:38:46,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 11:38:46,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 11:38:46,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 11:38:46,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 11:38:46,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:38:46" (1/1) ... [2021-05-06 11:38:46,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61be3b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:46, skipping insertion in model container [2021-05-06 11:38:46,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:38:46" (1/1) ... [2021-05-06 11:38:46,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 11:38:46,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 11:38:46,938 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-industry-pattern/aiob_4.c.v+cfa-reducer.c[7920,7933] [2021-05-06 11:38:46,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:38:46,989 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 11:38:47,066 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-industry-pattern/aiob_4.c.v+cfa-reducer.c[7920,7933] [2021-05-06 11:38:47,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:38:47,081 INFO L208 MainTranslator]: Completed translation [2021-05-06 11:38:47,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47 WrapperNode [2021-05-06 11:38:47,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 11:38:47,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 11:38:47,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 11:38:47,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 11:38:47,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (1/1) ... [2021-05-06 11:38:47,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (1/1) ... [2021-05-06 11:38:47,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (1/1) ... [2021-05-06 11:38:47,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (1/1) ... [2021-05-06 11:38:47,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (1/1) ... [2021-05-06 11:38:47,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (1/1) ... [2021-05-06 11:38:47,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (1/1) ... [2021-05-06 11:38:47,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 11:38:47,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 11:38:47,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 11:38:47,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 11:38:47,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (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 11:38:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 11:38:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 11:38:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 11:38:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 11:38:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 11:38:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 11:38:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 11:38:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 11:38:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-06 11:38:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-06 11:38:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 11:38:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 11:38:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 11:38:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-06 11:38:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 11:38:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 11:38:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 11:38:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 11:38:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-06 11:38:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 11:38:47,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 11:38:47,898 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-06 11:38:47,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:38:47 BoogieIcfgContainer [2021-05-06 11:38:47,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 11:38:47,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 11:38:47,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 11:38:47,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 11:38:47,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 11:38:46" (1/3) ... [2021-05-06 11:38:47,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2bec22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:38:47, skipping insertion in model container [2021-05-06 11:38:47,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:38:47" (2/3) ... [2021-05-06 11:38:47,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2bec22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:38:47, skipping insertion in model container [2021-05-06 11:38:47,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:38:47" (3/3) ... [2021-05-06 11:38:47,906 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+cfa-reducer.c [2021-05-06 11:38:47,911 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-06 11:38:47,914 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 11:38:47,929 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 11:38:47,947 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 11:38:47,948 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 11:38:47,948 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-06 11:38:47,948 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 11:38:47,948 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 11:38:47,948 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 11:38:47,948 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 11:38:47,948 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 11:38:47,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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 11:38:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-06 11:38:47,967 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:47,968 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:47,968 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:47,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:47,976 INFO L82 PathProgramCache]: Analyzing trace with hash 2001183330, now seen corresponding path program 1 times [2021-05-06 11:38:47,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:47,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206655807] [2021-05-06 11:38:47,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:48,048 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:48,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:48,466 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 11:38:48,471 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:48,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206655807] [2021-05-06 11:38:48,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1206655807] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:48,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:48,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 11:38:48,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215364813] [2021-05-06 11:38:48,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 11:38:48,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:48,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 11:38:48,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:38:48,517 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 11:38:48,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:48,762 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-05-06 11:38:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 11:38:48,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 13 [2021-05-06 11:38:48,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:48,770 INFO L225 Difference]: With dead ends: 46 [2021-05-06 11:38:48,770 INFO L226 Difference]: Without dead ends: 24 [2021-05-06 11:38:48,774 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 163.0ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-05-06 11:38:48,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-06 11:38:48,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2021-05-06 11:38:48,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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 11:38:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-05-06 11:38:48,799 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2021-05-06 11:38:48,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:48,799 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-05-06 11:38:48,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 11:38:48,800 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-05-06 11:38:48,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-06 11:38:48,800 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:48,800 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:48,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 11:38:48,801 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:48,801 INFO L82 PathProgramCache]: Analyzing trace with hash 2000766256, now seen corresponding path program 1 times [2021-05-06 11:38:48,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:48,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636901829] [2021-05-06 11:38:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:48,804 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:48,912 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 11:38:48,913 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:48,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636901829] [2021-05-06 11:38:48,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1636901829] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:48,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:48,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 11:38:48,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740660703] [2021-05-06 11:38:48,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 11:38:48,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:48,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 11:38:48,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:38:48,915 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 11:38:48,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:48,993 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-05-06 11:38:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 11:38:48,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 13 [2021-05-06 11:38:48,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:48,994 INFO L225 Difference]: With dead ends: 28 [2021-05-06 11:38:48,994 INFO L226 Difference]: Without dead ends: 26 [2021-05-06 11:38:48,995 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-06 11:38:48,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-05-06 11:38:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-05-06 11:38:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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 11:38:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-05-06 11:38:49,001 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2021-05-06 11:38:49,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:49,001 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-05-06 11:38:49,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 11:38:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-05-06 11:38:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-05-06 11:38:49,002 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:49,002 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:49,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 11:38:49,003 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:49,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:49,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1978265494, now seen corresponding path program 1 times [2021-05-06 11:38:49,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:49,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465032361] [2021-05-06 11:38:49,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:49,021 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:49,022 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:49,023 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:49,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:49,159 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 11:38:49,159 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:49,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465032361] [2021-05-06 11:38:49,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [465032361] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:49,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:49,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-06 11:38:49,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500462446] [2021-05-06 11:38:49,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-06 11:38:49,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:49,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-06 11:38:49,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-06 11:38:49,161 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 11:38:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:49,335 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2021-05-06 11:38:49,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 11:38:49,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 19 [2021-05-06 11:38:49,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:49,337 INFO L225 Difference]: With dead ends: 40 [2021-05-06 11:38:49,337 INFO L226 Difference]: Without dead ends: 30 [2021-05-06 11:38:49,338 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 142.9ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-05-06 11:38:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-05-06 11:38:49,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2021-05-06 11:38:49,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 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 11:38:49,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-05-06 11:38:49,351 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2021-05-06 11:38:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:49,351 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-05-06 11:38:49,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 11:38:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-05-06 11:38:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-06 11:38:49,352 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:49,352 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:49,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-06 11:38:49,365 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:49,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:49,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1594611826, now seen corresponding path program 2 times [2021-05-06 11:38:49,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:49,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307077331] [2021-05-06 11:38:49,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:49,374 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:49,375 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:49,376 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:49,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:49,559 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 11:38:49,559 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:49,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307077331] [2021-05-06 11:38:49,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [307077331] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:49,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:49,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-06 11:38:49,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618673336] [2021-05-06 11:38:49,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-06 11:38:49,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:49,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-06 11:38:49,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-06 11:38:49,563 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 11:38:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:49,773 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2021-05-06 11:38:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-06 11:38:49,774 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 25 [2021-05-06 11:38:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:49,776 INFO L225 Difference]: With dead ends: 46 [2021-05-06 11:38:49,776 INFO L226 Difference]: Without dead ends: 36 [2021-05-06 11:38:49,777 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.7ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-05-06 11:38:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-05-06 11:38:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-05-06 11:38:49,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 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 11:38:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2021-05-06 11:38:49,791 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 25 [2021-05-06 11:38:49,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:49,791 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2021-05-06 11:38:49,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 11:38:49,792 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2021-05-06 11:38:49,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-06 11:38:49,792 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:49,792 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:49,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-06 11:38:49,793 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:49,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:49,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1841134202, now seen corresponding path program 3 times [2021-05-06 11:38:49,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:49,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414355469] [2021-05-06 11:38:49,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:49,808 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:49,809 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:49,810 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:50,027 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 11:38:50,027 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:50,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414355469] [2021-05-06 11:38:50,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [414355469] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:50,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:50,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-06 11:38:50,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294268632] [2021-05-06 11:38:50,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 11:38:50,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:50,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 11:38:50,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-05-06 11:38:50,030 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 11:38:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:50,324 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2021-05-06 11:38:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 11:38:50,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 11:38:50,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:50,325 INFO L225 Difference]: With dead ends: 52 [2021-05-06 11:38:50,325 INFO L226 Difference]: Without dead ends: 42 [2021-05-06 11:38:50,326 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 224.1ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-05-06 11:38:50,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-05-06 11:38:50,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2021-05-06 11:38:50,332 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 11:38:50,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2021-05-06 11:38:50,333 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 31 [2021-05-06 11:38:50,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:50,333 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2021-05-06 11:38:50,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 11:38:50,333 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2021-05-06 11:38:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-06 11:38:50,334 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:50,334 INFO L523 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:50,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-06 11:38:50,334 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:50,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:50,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1281324674, now seen corresponding path program 4 times [2021-05-06 11:38:50,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:50,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973864704] [2021-05-06 11:38:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:50,342 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:50,342 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:50,355 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:50,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:50,531 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 11:38:50,531 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:50,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973864704] [2021-05-06 11:38:50,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1973864704] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:50,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:50,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-06 11:38:50,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143353806] [2021-05-06 11:38:50,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-06 11:38:50,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:50,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-06 11:38:50,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-05-06 11:38:50,533 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 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 11:38:50,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:50,829 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-05-06 11:38:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-06 11:38:50,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 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 11:38:50,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:50,831 INFO L225 Difference]: With dead ends: 58 [2021-05-06 11:38:50,831 INFO L226 Difference]: Without dead ends: 48 [2021-05-06 11:38:50,831 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 193.6ms TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-05-06 11:38:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-05-06 11:38:50,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2021-05-06 11:38:50,838 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 11:38:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-05-06 11:38:50,839 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 37 [2021-05-06 11:38:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:50,839 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-05-06 11:38:50,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 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 11:38:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-05-06 11:38:50,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-06 11:38:50,840 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:50,840 INFO L523 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:50,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-06 11:38:50,841 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:50,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:50,841 INFO L82 PathProgramCache]: Analyzing trace with hash 935742602, now seen corresponding path program 5 times [2021-05-06 11:38:50,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:50,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293628883] [2021-05-06 11:38:50,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:50,848 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:50,848 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:50,850 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:51,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:51,013 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 11:38:51,013 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:51,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293628883] [2021-05-06 11:38:51,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1293628883] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:51,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:51,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-06 11:38:51,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131766854] [2021-05-06 11:38:51,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-06 11:38:51,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:51,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-06 11:38:51,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-05-06 11:38:51,015 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 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 11:38:51,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:51,387 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-05-06 11:38:51,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-06 11:38:51,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 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 11:38:51,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:51,389 INFO L225 Difference]: With dead ends: 64 [2021-05-06 11:38:51,389 INFO L226 Difference]: Without dead ends: 54 [2021-05-06 11:38:51,389 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 215.5ms TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-05-06 11:38:51,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-05-06 11:38:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2021-05-06 11:38:51,397 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 11:38:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-05-06 11:38:51,398 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 43 [2021-05-06 11:38:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:51,398 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-05-06 11:38:51,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 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 11:38:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-05-06 11:38:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-06 11:38:51,399 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:51,399 INFO L523 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:51,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-06 11:38:51,400 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:51,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:51,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1687782254, now seen corresponding path program 6 times [2021-05-06 11:38:51,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:51,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015786720] [2021-05-06 11:38:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:51,407 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:51,407 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:51,408 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:51,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:51,584 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 11:38:51,584 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:51,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015786720] [2021-05-06 11:38:51,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1015786720] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:51,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:51,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-06 11:38:51,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946509313] [2021-05-06 11:38:51,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-06 11:38:51,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:51,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-06 11:38:51,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-05-06 11:38:51,586 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 11:38:52,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:52,005 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2021-05-06 11:38:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-06 11:38:52,006 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 11:38:52,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:52,008 INFO L225 Difference]: With dead ends: 70 [2021-05-06 11:38:52,008 INFO L226 Difference]: Without dead ends: 60 [2021-05-06 11:38:52,011 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 240.0ms TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-05-06 11:38:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-05-06 11:38:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2021-05-06 11:38:52,032 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 11:38:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2021-05-06 11:38:52,033 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 49 [2021-05-06 11:38:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:52,033 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2021-05-06 11:38:52,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 11:38:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2021-05-06 11:38:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-06 11:38:52,034 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:52,034 INFO L523 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:52,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-06 11:38:52,034 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:52,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:52,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1722513766, now seen corresponding path program 7 times [2021-05-06 11:38:52,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:52,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070603368] [2021-05-06 11:38:52,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:52,049 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:52,049 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:52,052 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:52,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:52,299 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 11:38:52,299 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:52,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070603368] [2021-05-06 11:38:52,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1070603368] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:52,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:52,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-06 11:38:52,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053711876] [2021-05-06 11:38:52,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-06 11:38:52,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:52,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-06 11:38:52,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-05-06 11:38:52,301 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 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 11:38:52,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:52,817 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2021-05-06 11:38:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-06 11:38:52,819 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 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 11:38:52,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:52,820 INFO L225 Difference]: With dead ends: 76 [2021-05-06 11:38:52,820 INFO L226 Difference]: Without dead ends: 66 [2021-05-06 11:38:52,821 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 276.1ms TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-05-06 11:38:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-05-06 11:38:52,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2021-05-06 11:38:52,836 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 11:38:52,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2021-05-06 11:38:52,837 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 55 [2021-05-06 11:38:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:52,837 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2021-05-06 11:38:52,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 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 11:38:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2021-05-06 11:38:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-06 11:38:52,838 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:52,838 INFO L523 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:52,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-06 11:38:52,838 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:52,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1840977246, now seen corresponding path program 8 times [2021-05-06 11:38:52,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:52,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685265628] [2021-05-06 11:38:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:52,852 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:52,852 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONLINEAR_UPDATE [2021-05-06 11:38:52,854 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:53,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:53,117 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 11:38:53,117 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:53,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685265628] [2021-05-06 11:38:53,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [685265628] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:53,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:53,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-06 11:38:53,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808717378] [2021-05-06 11:38:53,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-06 11:38:53,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:53,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-06 11:38:53,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-05-06 11:38:53,119 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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 11:38:53,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:53,659 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2021-05-06 11:38:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-06 11:38:53,659 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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 11:38:53,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:53,660 INFO L225 Difference]: With dead ends: 82 [2021-05-06 11:38:53,660 INFO L226 Difference]: Without dead ends: 72 [2021-05-06 11:38:53,661 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 313.7ms TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-05-06 11:38:53,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-05-06 11:38:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-05-06 11:38:53,669 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 11:38:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2021-05-06 11:38:53,670 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 61 [2021-05-06 11:38:53,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:53,670 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2021-05-06 11:38:53,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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 11:38:53,671 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2021-05-06 11:38:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-05-06 11:38:53,671 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:53,672 INFO L523 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:53,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-06 11:38:53,672 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:53,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1383323478, now seen corresponding path program 9 times [2021-05-06 11:38:53,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:53,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269290887] [2021-05-06 11:38:53,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:53,679 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:53,679 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:53,680 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:53,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:53,921 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 11:38:53,922 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:53,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269290887] [2021-05-06 11:38:53,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1269290887] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:53,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:53,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-05-06 11:38:53,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196839757] [2021-05-06 11:38:53,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-06 11:38:53,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:53,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-06 11:38:53,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-05-06 11:38:53,924 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 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 11:38:54,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:54,562 INFO L93 Difference]: Finished difference Result 88 states and 91 transitions. [2021-05-06 11:38:54,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-06 11:38:54,563 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 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 11:38:54,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:54,564 INFO L225 Difference]: With dead ends: 88 [2021-05-06 11:38:54,564 INFO L226 Difference]: Without dead ends: 78 [2021-05-06 11:38:54,564 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 333.6ms TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-05-06 11:38:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-05-06 11:38:54,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2021-05-06 11:38:54,573 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 11:38:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2021-05-06 11:38:54,574 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 67 [2021-05-06 11:38:54,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:54,575 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2021-05-06 11:38:54,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 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 11:38:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2021-05-06 11:38:54,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-05-06 11:38:54,576 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:54,576 INFO L523 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:54,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-06 11:38:54,576 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:54,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:54,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1629405362, now seen corresponding path program 10 times [2021-05-06 11:38:54,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:54,577 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240041230] [2021-05-06 11:38:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:54,584 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:54,584 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:54,586 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:54,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:54,850 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 11:38:54,850 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:54,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240041230] [2021-05-06 11:38:54,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [240041230] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:54,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:54,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-06 11:38:54,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837961718] [2021-05-06 11:38:54,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-06 11:38:54,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:54,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-06 11:38:54,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-05-06 11:38:54,852 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 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 11:38:55,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:55,580 INFO L93 Difference]: Finished difference Result 94 states and 97 transitions. [2021-05-06 11:38:55,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-06 11:38:55,580 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 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 11:38:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:55,581 INFO L225 Difference]: With dead ends: 94 [2021-05-06 11:38:55,581 INFO L226 Difference]: Without dead ends: 84 [2021-05-06 11:38:55,582 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 379.8ms TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-05-06 11:38:55,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-05-06 11:38:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2021-05-06 11:38:55,591 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 11:38:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2021-05-06 11:38:55,592 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 73 [2021-05-06 11:38:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:55,592 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2021-05-06 11:38:55,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 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 11:38:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2021-05-06 11:38:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-06 11:38:55,593 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:55,593 INFO L523 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:55,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-06 11:38:55,594 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:55,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:55,594 INFO L82 PathProgramCache]: Analyzing trace with hash -107924806, now seen corresponding path program 11 times [2021-05-06 11:38:55,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:55,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729629185] [2021-05-06 11:38:55,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:55,602 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:55,602 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:55,604 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:55,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:55,927 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 11:38:55,928 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:55,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729629185] [2021-05-06 11:38:55,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1729629185] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:55,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:55,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-06 11:38:55,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598068710] [2021-05-06 11:38:55,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-06 11:38:55,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:55,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-06 11:38:55,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-05-06 11:38:55,929 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand has 16 states, 16 states have (on average 4.75) internal successors, (76), 15 states have internal predecessors, (76), 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 11:38:56,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:56,770 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2021-05-06 11:38:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-06 11:38:56,770 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 15 states have internal predecessors, (76), 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 11:38:56,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:56,771 INFO L225 Difference]: With dead ends: 100 [2021-05-06 11:38:56,771 INFO L226 Difference]: Without dead ends: 90 [2021-05-06 11:38:56,772 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 460.4ms TimeCoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2021-05-06 11:38:56,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-05-06 11:38:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2021-05-06 11:38:56,783 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 11:38:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2021-05-06 11:38:56,784 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 79 [2021-05-06 11:38:56,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:56,784 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2021-05-06 11:38:56,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 15 states have internal predecessors, (76), 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 11:38:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2021-05-06 11:38:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-05-06 11:38:56,785 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:56,785 INFO L523 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:56,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-06 11:38:56,786 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:56,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:56,786 INFO L82 PathProgramCache]: Analyzing trace with hash 571997890, now seen corresponding path program 12 times [2021-05-06 11:38:56,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:56,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727429810] [2021-05-06 11:38:56,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:56,794 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:56,794 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:56,796 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:57,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:57,091 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 11:38:57,091 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:57,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727429810] [2021-05-06 11:38:57,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1727429810] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:57,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:57,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-06 11:38:57,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430462691] [2021-05-06 11:38:57,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-06 11:38:57,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:57,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-06 11:38:57,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-05-06 11:38:57,093 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 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 11:38:57,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:57,974 INFO L93 Difference]: Finished difference Result 106 states and 109 transitions. [2021-05-06 11:38:57,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-06 11:38:57,974 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 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 11:38:57,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:57,975 INFO L225 Difference]: With dead ends: 106 [2021-05-06 11:38:57,975 INFO L226 Difference]: Without dead ends: 96 [2021-05-06 11:38:57,975 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 447.5ms TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2021-05-06 11:38:57,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-05-06 11:38:57,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2021-05-06 11:38:57,985 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 11:38:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 93 transitions. [2021-05-06 11:38:57,986 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 93 transitions. Word has length 85 [2021-05-06 11:38:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:57,986 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 93 transitions. [2021-05-06 11:38:57,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 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 11:38:57,987 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 93 transitions. [2021-05-06 11:38:57,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-05-06 11:38:57,988 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:57,988 INFO L523 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:57,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-06 11:38:57,988 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:57,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:57,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1820828874, now seen corresponding path program 13 times [2021-05-06 11:38:57,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:57,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805221540] [2021-05-06 11:38:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:57,995 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:57,996 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:57,997 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:58,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:58,312 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 11:38:58,312 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:58,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805221540] [2021-05-06 11:38:58,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [805221540] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:58,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:58,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-06 11:38:58,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120807623] [2021-05-06 11:38:58,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-06 11:38:58,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:58,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-06 11:38:58,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-05-06 11:38:58,314 INFO L87 Difference]: Start difference. First operand 92 states and 93 transitions. Second operand has 18 states, 18 states have (on average 4.888888888888889) internal successors, (88), 17 states have internal predecessors, (88), 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 11:38:59,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:38:59,250 INFO L93 Difference]: Finished difference Result 112 states and 115 transitions. [2021-05-06 11:38:59,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-06 11:38:59,251 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.888888888888889) internal successors, (88), 17 states have internal predecessors, (88), 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 11:38:59,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:38:59,251 INFO L225 Difference]: With dead ends: 112 [2021-05-06 11:38:59,251 INFO L226 Difference]: Without dead ends: 102 [2021-05-06 11:38:59,254 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 494.3ms TimeCoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2021-05-06 11:38:59,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-05-06 11:38:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2021-05-06 11:38:59,267 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 11:38:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2021-05-06 11:38:59,268 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 91 [2021-05-06 11:38:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:38:59,268 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2021-05-06 11:38:59,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.888888888888889) internal successors, (88), 17 states have internal predecessors, (88), 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 11:38:59,268 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2021-05-06 11:38:59,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-05-06 11:38:59,269 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:38:59,270 INFO L523 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:38:59,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-06 11:38:59,270 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:38:59,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:38:59,271 INFO L82 PathProgramCache]: Analyzing trace with hash -648764206, now seen corresponding path program 14 times [2021-05-06 11:38:59,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:38:59,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202585172] [2021-05-06 11:38:59,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:38:59,282 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:38:59,282 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:38:59,292 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:38:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:59,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:38:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:38:59,663 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 11:38:59,664 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:38:59,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202585172] [2021-05-06 11:38:59,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [202585172] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:38:59,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:38:59,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-06 11:38:59,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289368323] [2021-05-06 11:38:59,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-06 11:38:59,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:38:59,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-06 11:38:59,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2021-05-06 11:38:59,665 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 18 states have internal predecessors, (94), 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 11:39:00,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:00,623 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2021-05-06 11:39:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-06 11:39:00,624 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 18 states have internal predecessors, (94), 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 11:39:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:00,625 INFO L225 Difference]: With dead ends: 118 [2021-05-06 11:39:00,625 INFO L226 Difference]: Without dead ends: 108 [2021-05-06 11:39:00,625 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 545.1ms TimeCoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2021-05-06 11:39:00,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-05-06 11:39:00,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2021-05-06 11:39:00,637 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 11:39:00,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2021-05-06 11:39:00,638 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 97 [2021-05-06 11:39:00,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:00,638 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2021-05-06 11:39:00,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 18 states have internal predecessors, (94), 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 11:39:00,638 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2021-05-06 11:39:00,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-05-06 11:39:00,639 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:00,639 INFO L523 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:00,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-06 11:39:00,640 INFO L428 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:00,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:00,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1603501786, now seen corresponding path program 15 times [2021-05-06 11:39:00,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:00,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512951137] [2021-05-06 11:39:00,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:00,647 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:00,647 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:00,648 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:01,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:01,076 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 11:39:01,076 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:01,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512951137] [2021-05-06 11:39:01,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1512951137] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:01,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:01,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-06 11:39:01,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106940374] [2021-05-06 11:39:01,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-06 11:39:01,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:01,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-06 11:39:01,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2021-05-06 11:39:01,078 INFO L87 Difference]: Start difference. First operand 104 states and 105 transitions. Second operand has 20 states, 20 states have (on average 5.0) internal successors, (100), 19 states have internal predecessors, (100), 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 11:39:02,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:02,343 INFO L93 Difference]: Finished difference Result 124 states and 127 transitions. [2021-05-06 11:39:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-06 11:39:02,343 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 19 states have internal predecessors, (100), 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 11:39:02,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:02,344 INFO L225 Difference]: With dead ends: 124 [2021-05-06 11:39:02,344 INFO L226 Difference]: Without dead ends: 114 [2021-05-06 11:39:02,345 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 697.6ms TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2021-05-06 11:39:02,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-05-06 11:39:02,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2021-05-06 11:39:02,357 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 11:39:02,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 111 transitions. [2021-05-06 11:39:02,358 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 111 transitions. Word has length 103 [2021-05-06 11:39:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:02,358 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 111 transitions. [2021-05-06 11:39:02,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 19 states have internal predecessors, (100), 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 11:39:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 111 transitions. [2021-05-06 11:39:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-05-06 11:39:02,359 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:02,360 INFO L523 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:02,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-06 11:39:02,360 INFO L428 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:02,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:02,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1962455778, now seen corresponding path program 16 times [2021-05-06 11:39:02,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:02,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419332669] [2021-05-06 11:39:02,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:02,367 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:02,367 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:02,369 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:02,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:02,797 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 11:39:02,797 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:02,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419332669] [2021-05-06 11:39:02,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1419332669] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:02,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:02,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-05-06 11:39:02,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701619625] [2021-05-06 11:39:02,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-06 11:39:02,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:02,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-06 11:39:02,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2021-05-06 11:39:02,799 INFO L87 Difference]: Start difference. First operand 110 states and 111 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 20 states have internal predecessors, (106), 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 11:39:03,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:03,912 INFO L93 Difference]: Finished difference Result 130 states and 133 transitions. [2021-05-06 11:39:03,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-06 11:39:03,912 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 20 states have internal predecessors, (106), 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 11:39:03,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:03,913 INFO L225 Difference]: With dead ends: 130 [2021-05-06 11:39:03,913 INFO L226 Difference]: Without dead ends: 120 [2021-05-06 11:39:03,914 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 632.2ms TimeCoverageRelationStatistics Valid=111, Invalid=1371, Unknown=0, NotChecked=0, Total=1482 [2021-05-06 11:39:03,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-05-06 11:39:03,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2021-05-06 11:39:03,932 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 11:39:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 117 transitions. [2021-05-06 11:39:03,933 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 117 transitions. Word has length 109 [2021-05-06 11:39:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:03,933 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 117 transitions. [2021-05-06 11:39:03,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 20 states have internal predecessors, (106), 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 11:39:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 117 transitions. [2021-05-06 11:39:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-05-06 11:39:03,935 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:03,935 INFO L523 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:03,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-06 11:39:03,935 INFO L428 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:03,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:03,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1780956950, now seen corresponding path program 17 times [2021-05-06 11:39:03,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:03,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785207369] [2021-05-06 11:39:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:03,944 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:03,944 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:03,945 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:04,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:04,382 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 11:39:04,382 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:04,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785207369] [2021-05-06 11:39:04,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [785207369] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:04,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:04,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-06 11:39:04,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052870947] [2021-05-06 11:39:04,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-06 11:39:04,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:04,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-06 11:39:04,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2021-05-06 11:39:04,385 INFO L87 Difference]: Start difference. First operand 116 states and 117 transitions. Second operand has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 21 states have internal predecessors, (112), 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 11:39:05,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:05,743 INFO L93 Difference]: Finished difference Result 136 states and 139 transitions. [2021-05-06 11:39:05,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-06 11:39:05,744 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 21 states have internal predecessors, (112), 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 11:39:05,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:05,745 INFO L225 Difference]: With dead ends: 136 [2021-05-06 11:39:05,745 INFO L226 Difference]: Without dead ends: 126 [2021-05-06 11:39:05,745 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 692.2ms TimeCoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2021-05-06 11:39:05,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-05-06 11:39:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2021-05-06 11:39:05,759 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 11:39:05,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2021-05-06 11:39:05,760 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 115 [2021-05-06 11:39:05,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:05,760 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2021-05-06 11:39:05,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 21 states have internal predecessors, (112), 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 11:39:05,760 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2021-05-06 11:39:05,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-05-06 11:39:05,761 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:05,761 INFO L523 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:05,761 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-06 11:39:05,761 INFO L428 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:05,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:05,762 INFO L82 PathProgramCache]: Analyzing trace with hash -853006094, now seen corresponding path program 18 times [2021-05-06 11:39:05,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:05,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672968805] [2021-05-06 11:39:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:05,768 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:05,768 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONLINEAR_UPDATE [2021-05-06 11:39:05,769 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:06,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:06,219 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 11:39:06,219 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:06,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672968805] [2021-05-06 11:39:06,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1672968805] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:06,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:06,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-05-06 11:39:06,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666393487] [2021-05-06 11:39:06,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-06 11:39:06,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:06,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-06 11:39:06,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2021-05-06 11:39:06,221 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand has 23 states, 23 states have (on average 5.130434782608695) internal successors, (118), 22 states have internal predecessors, (118), 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 11:39:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:07,548 INFO L93 Difference]: Finished difference Result 142 states and 145 transitions. [2021-05-06 11:39:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-06 11:39:07,548 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.130434782608695) internal successors, (118), 22 states have internal predecessors, (118), 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 11:39:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:07,550 INFO L225 Difference]: With dead ends: 142 [2021-05-06 11:39:07,550 INFO L226 Difference]: Without dead ends: 132 [2021-05-06 11:39:07,551 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 728.5ms TimeCoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2021-05-06 11:39:07,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-05-06 11:39:07,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2021-05-06 11:39:07,568 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 11:39:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2021-05-06 11:39:07,569 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 121 [2021-05-06 11:39:07,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:07,569 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2021-05-06 11:39:07,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 5.130434782608695) internal successors, (118), 22 states have internal predecessors, (118), 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 11:39:07,569 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2021-05-06 11:39:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-05-06 11:39:07,570 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:07,570 INFO L523 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:07,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-06 11:39:07,570 INFO L428 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:07,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:07,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1014721274, now seen corresponding path program 19 times [2021-05-06 11:39:07,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:07,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090634508] [2021-05-06 11:39:07,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:07,590 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:07,590 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:07,592 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:08,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:08,085 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 11:39:08,085 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:08,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090634508] [2021-05-06 11:39:08,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2090634508] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:08,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:08,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-06 11:39:08,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707699775] [2021-05-06 11:39:08,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-06 11:39:08,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:08,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-06 11:39:08,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2021-05-06 11:39:08,087 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 23 states have internal predecessors, (124), 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 11:39:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:09,524 INFO L93 Difference]: Finished difference Result 148 states and 151 transitions. [2021-05-06 11:39:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-06 11:39:09,524 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 23 states have internal predecessors, (124), 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 11:39:09,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:09,525 INFO L225 Difference]: With dead ends: 148 [2021-05-06 11:39:09,525 INFO L226 Difference]: Without dead ends: 138 [2021-05-06 11:39:09,526 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 765.2ms TimeCoverageRelationStatistics Valid=129, Invalid=1851, Unknown=0, NotChecked=0, Total=1980 [2021-05-06 11:39:09,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-05-06 11:39:09,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2021-05-06 11:39:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.0153846153846153) internal successors, (132), 130 states have internal predecessors, (132), 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 11:39:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 135 transitions. [2021-05-06 11:39:09,541 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 135 transitions. Word has length 127 [2021-05-06 11:39:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:09,541 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 135 transitions. [2021-05-06 11:39:09,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 23 states have internal predecessors, (124), 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 11:39:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 135 transitions. [2021-05-06 11:39:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-05-06 11:39:09,542 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:09,542 INFO L523 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:09,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-06 11:39:09,543 INFO L428 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:09,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1543043326, now seen corresponding path program 20 times [2021-05-06 11:39:09,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:09,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673682245] [2021-05-06 11:39:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:09,551 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:09,551 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:09,552 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:10,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:10,070 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 11:39:10,070 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:10,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673682245] [2021-05-06 11:39:10,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [673682245] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:10,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:10,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-05-06 11:39:10,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836628976] [2021-05-06 11:39:10,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-06 11:39:10,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:10,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-06 11:39:10,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2021-05-06 11:39:10,072 INFO L87 Difference]: Start difference. First operand 134 states and 135 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 24 states have internal predecessors, (130), 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 11:39:11,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:11,566 INFO L93 Difference]: Finished difference Result 154 states and 157 transitions. [2021-05-06 11:39:11,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-06 11:39:11,568 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 24 states have internal predecessors, (130), 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 133 [2021-05-06 11:39:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:11,569 INFO L225 Difference]: With dead ends: 154 [2021-05-06 11:39:11,569 INFO L226 Difference]: Without dead ends: 144 [2021-05-06 11:39:11,570 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 810.1ms TimeCoverageRelationStatistics Valid=135, Invalid=2027, Unknown=0, NotChecked=0, Total=2162 [2021-05-06 11:39:11,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-05-06 11:39:11,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2021-05-06 11:39:11,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 136 states have (on average 1.0147058823529411) internal successors, (138), 136 states have internal predecessors, (138), 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 11:39:11,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 141 transitions. [2021-05-06 11:39:11,587 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 141 transitions. Word has length 133 [2021-05-06 11:39:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:11,588 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 141 transitions. [2021-05-06 11:39:11,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 24 states have internal predecessors, (130), 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 11:39:11,588 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 141 transitions. [2021-05-06 11:39:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-05-06 11:39:11,588 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:11,588 INFO L523 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:11,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-06 11:39:11,589 INFO L428 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:11,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:11,589 INFO L82 PathProgramCache]: Analyzing trace with hash -358646518, now seen corresponding path program 21 times [2021-05-06 11:39:11,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:11,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814891500] [2021-05-06 11:39:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:11,597 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:11,597 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:11,598 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:12,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:12,097 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 11:39:12,098 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:12,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814891500] [2021-05-06 11:39:12,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1814891500] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:12,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:12,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-05-06 11:39:12,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196082047] [2021-05-06 11:39:12,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-06 11:39:12,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:12,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-06 11:39:12,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2021-05-06 11:39:12,099 INFO L87 Difference]: Start difference. First operand 140 states and 141 transitions. Second operand has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 25 states have internal predecessors, (136), 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 11:39:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:13,664 INFO L93 Difference]: Finished difference Result 160 states and 163 transitions. [2021-05-06 11:39:13,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-06 11:39:13,664 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 25 states have internal predecessors, (136), 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 139 [2021-05-06 11:39:13,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:13,665 INFO L225 Difference]: With dead ends: 160 [2021-05-06 11:39:13,665 INFO L226 Difference]: Without dead ends: 150 [2021-05-06 11:39:13,666 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 793.4ms TimeCoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2021-05-06 11:39:13,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-05-06 11:39:13,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2021-05-06 11:39:13,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 1.0140845070422535) internal successors, (144), 142 states have internal predecessors, (144), 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 11:39:13,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 147 transitions. [2021-05-06 11:39:13,683 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 147 transitions. Word has length 139 [2021-05-06 11:39:13,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:13,684 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 147 transitions. [2021-05-06 11:39:13,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 25 states have internal predecessors, (136), 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 11:39:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 147 transitions. [2021-05-06 11:39:13,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-05-06 11:39:13,684 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:13,685 INFO L523 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:13,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-06 11:39:13,685 INFO L428 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:13,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:13,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1514582766, now seen corresponding path program 22 times [2021-05-06 11:39:13,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:13,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992339332] [2021-05-06 11:39:13,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:13,692 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:13,692 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:13,693 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:14,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:14,189 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 11:39:14,190 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:14,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992339332] [2021-05-06 11:39:14,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1992339332] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:14,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:14,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-05-06 11:39:14,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250453104] [2021-05-06 11:39:14,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-06 11:39:14,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:14,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-06 11:39:14,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2021-05-06 11:39:14,192 INFO L87 Difference]: Start difference. First operand 146 states and 147 transitions. Second operand has 27 states, 27 states have (on average 5.2592592592592595) internal successors, (142), 26 states have internal predecessors, (142), 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 11:39:15,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:15,841 INFO L93 Difference]: Finished difference Result 166 states and 169 transitions. [2021-05-06 11:39:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-06 11:39:15,842 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.2592592592592595) internal successors, (142), 26 states have internal predecessors, (142), 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 145 [2021-05-06 11:39:15,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:15,843 INFO L225 Difference]: With dead ends: 166 [2021-05-06 11:39:15,843 INFO L226 Difference]: Without dead ends: 156 [2021-05-06 11:39:15,844 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 831.4ms TimeCoverageRelationStatistics Valid=147, Invalid=2403, Unknown=0, NotChecked=0, Total=2550 [2021-05-06 11:39:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-05-06 11:39:15,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2021-05-06 11:39:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 148 states have (on average 1.0135135135135136) internal successors, (150), 148 states have internal predecessors, (150), 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 11:39:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 153 transitions. [2021-05-06 11:39:15,868 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 153 transitions. Word has length 145 [2021-05-06 11:39:15,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:15,868 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 153 transitions. [2021-05-06 11:39:15,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 5.2592592592592595) internal successors, (142), 26 states have internal predecessors, (142), 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 11:39:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 153 transitions. [2021-05-06 11:39:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-05-06 11:39:15,869 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:15,869 INFO L523 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:15,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-06 11:39:15,870 INFO L428 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:15,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:15,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1586956518, now seen corresponding path program 23 times [2021-05-06 11:39:15,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:15,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973448145] [2021-05-06 11:39:15,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:15,876 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:15,877 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:15,878 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:16,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:16,410 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 11:39:16,410 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:16,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973448145] [2021-05-06 11:39:16,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [973448145] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:16,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:16,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-06 11:39:16,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178879915] [2021-05-06 11:39:16,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-06 11:39:16,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:16,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-06 11:39:16,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2021-05-06 11:39:16,411 INFO L87 Difference]: Start difference. First operand 152 states and 153 transitions. Second operand has 28 states, 28 states have (on average 5.285714285714286) internal successors, (148), 27 states have internal predecessors, (148), 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 11:39:18,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:18,129 INFO L93 Difference]: Finished difference Result 172 states and 175 transitions. [2021-05-06 11:39:18,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-06 11:39:18,129 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.285714285714286) internal successors, (148), 27 states have internal predecessors, (148), 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 151 [2021-05-06 11:39:18,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:18,130 INFO L225 Difference]: With dead ends: 172 [2021-05-06 11:39:18,130 INFO L226 Difference]: Without dead ends: 162 [2021-05-06 11:39:18,131 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 896.7ms TimeCoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2021-05-06 11:39:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-05-06 11:39:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158. [2021-05-06 11:39:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 154 states have (on average 1.0129870129870129) internal successors, (156), 154 states have internal predecessors, (156), 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 11:39:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 159 transitions. [2021-05-06 11:39:18,145 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 159 transitions. Word has length 151 [2021-05-06 11:39:18,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:18,145 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 159 transitions. [2021-05-06 11:39:18,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 5.285714285714286) internal successors, (148), 27 states have internal predecessors, (148), 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 11:39:18,146 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 159 transitions. [2021-05-06 11:39:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-05-06 11:39:18,146 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:18,146 INFO L523 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:18,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-06 11:39:18,146 INFO L428 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:18,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:18,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1751317282, now seen corresponding path program 24 times [2021-05-06 11:39:18,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:18,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290704147] [2021-05-06 11:39:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:18,154 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:18,154 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:18,155 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:18,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:18,688 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 11:39:18,688 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:18,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290704147] [2021-05-06 11:39:18,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1290704147] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:18,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:18,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-05-06 11:39:18,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758628737] [2021-05-06 11:39:18,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-06 11:39:18,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:18,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-06 11:39:18,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2021-05-06 11:39:18,690 INFO L87 Difference]: Start difference. First operand 158 states and 159 transitions. Second operand has 29 states, 29 states have (on average 5.310344827586207) internal successors, (154), 28 states have internal predecessors, (154), 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 11:39:20,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:20,622 INFO L93 Difference]: Finished difference Result 178 states and 181 transitions. [2021-05-06 11:39:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-06 11:39:20,623 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.310344827586207) internal successors, (154), 28 states have internal predecessors, (154), 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 157 [2021-05-06 11:39:20,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:20,624 INFO L225 Difference]: With dead ends: 178 [2021-05-06 11:39:20,624 INFO L226 Difference]: Without dead ends: 168 [2021-05-06 11:39:20,625 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 942.8ms TimeCoverageRelationStatistics Valid=159, Invalid=2811, Unknown=0, NotChecked=0, Total=2970 [2021-05-06 11:39:20,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-05-06 11:39:20,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2021-05-06 11:39:20,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 160 states have (on average 1.0125) internal successors, (162), 160 states have internal predecessors, (162), 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 11:39:20,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 165 transitions. [2021-05-06 11:39:20,645 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 165 transitions. Word has length 157 [2021-05-06 11:39:20,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:20,645 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 165 transitions. [2021-05-06 11:39:20,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 5.310344827586207) internal successors, (154), 28 states have internal predecessors, (154), 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 11:39:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 165 transitions. [2021-05-06 11:39:20,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-05-06 11:39:20,646 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:20,646 INFO L523 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:20,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-06 11:39:20,646 INFO L428 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:20,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:20,647 INFO L82 PathProgramCache]: Analyzing trace with hash -872687318, now seen corresponding path program 25 times [2021-05-06 11:39:20,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:20,647 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948270649] [2021-05-06 11:39:20,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:20,653 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:20,653 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:20,655 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:21,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:21,293 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 11:39:21,294 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:21,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948270649] [2021-05-06 11:39:21,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [948270649] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:21,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:21,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-05-06 11:39:21,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151904322] [2021-05-06 11:39:21,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-06 11:39:21,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:21,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-06 11:39:21,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2021-05-06 11:39:21,295 INFO L87 Difference]: Start difference. First operand 164 states and 165 transitions. Second operand has 30 states, 30 states have (on average 5.333333333333333) internal successors, (160), 29 states have internal predecessors, (160), 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 11:39:23,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:23,332 INFO L93 Difference]: Finished difference Result 184 states and 187 transitions. [2021-05-06 11:39:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-06 11:39:23,332 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.333333333333333) internal successors, (160), 29 states have internal predecessors, (160), 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 163 [2021-05-06 11:39:23,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:23,333 INFO L225 Difference]: With dead ends: 184 [2021-05-06 11:39:23,333 INFO L226 Difference]: Without dead ends: 174 [2021-05-06 11:39:23,334 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1065.0ms TimeCoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2021-05-06 11:39:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-05-06 11:39:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 170. [2021-05-06 11:39:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 166 states have (on average 1.0120481927710843) internal successors, (168), 166 states have internal predecessors, (168), 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 11:39:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 171 transitions. [2021-05-06 11:39:23,352 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 171 transitions. Word has length 163 [2021-05-06 11:39:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:23,353 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 171 transitions. [2021-05-06 11:39:23,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 5.333333333333333) internal successors, (160), 29 states have internal predecessors, (160), 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 11:39:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 171 transitions. [2021-05-06 11:39:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-05-06 11:39:23,353 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:23,353 INFO L523 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:23,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-06 11:39:23,354 INFO L428 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:23,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:23,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1814565170, now seen corresponding path program 26 times [2021-05-06 11:39:23,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:23,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560206205] [2021-05-06 11:39:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:23,361 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:23,361 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:23,363 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:24,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:24,074 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 11:39:24,074 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:24,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560206205] [2021-05-06 11:39:24,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1560206205] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:24,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:24,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-05-06 11:39:24,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339383010] [2021-05-06 11:39:24,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-06 11:39:24,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:24,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-06 11:39:24,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2021-05-06 11:39:24,076 INFO L87 Difference]: Start difference. First operand 170 states and 171 transitions. Second operand has 31 states, 31 states have (on average 5.354838709677419) internal successors, (166), 30 states have internal predecessors, (166), 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 11:39:26,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:26,316 INFO L93 Difference]: Finished difference Result 190 states and 193 transitions. [2021-05-06 11:39:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-06 11:39:26,317 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 5.354838709677419) internal successors, (166), 30 states have internal predecessors, (166), 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 169 [2021-05-06 11:39:26,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:26,317 INFO L225 Difference]: With dead ends: 190 [2021-05-06 11:39:26,317 INFO L226 Difference]: Without dead ends: 180 [2021-05-06 11:39:26,318 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1216.0ms TimeCoverageRelationStatistics Valid=171, Invalid=3251, Unknown=0, NotChecked=0, Total=3422 [2021-05-06 11:39:26,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-05-06 11:39:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 176. [2021-05-06 11:39:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 172 states have (on average 1.0116279069767442) internal successors, (174), 172 states have internal predecessors, (174), 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 11:39:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 177 transitions. [2021-05-06 11:39:26,340 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 177 transitions. Word has length 169 [2021-05-06 11:39:26,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:26,340 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 177 transitions. [2021-05-06 11:39:26,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 5.354838709677419) internal successors, (166), 30 states have internal predecessors, (166), 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 11:39:26,340 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 177 transitions. [2021-05-06 11:39:26,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-05-06 11:39:26,341 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:26,341 INFO L523 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:26,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-06 11:39:26,341 INFO L428 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:26,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:26,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1065100090, now seen corresponding path program 27 times [2021-05-06 11:39:26,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:26,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865830228] [2021-05-06 11:39:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:26,348 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:26,348 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:26,349 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:27,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:27,007 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 11:39:27,007 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:27,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865830228] [2021-05-06 11:39:27,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [865830228] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:27,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:27,008 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-05-06 11:39:27,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106374499] [2021-05-06 11:39:27,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-06 11:39:27,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:27,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-06 11:39:27,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2021-05-06 11:39:27,009 INFO L87 Difference]: Start difference. First operand 176 states and 177 transitions. Second operand has 32 states, 32 states have (on average 5.375) internal successors, (172), 31 states have internal predecessors, (172), 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 11:39:29,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:29,445 INFO L93 Difference]: Finished difference Result 196 states and 199 transitions. [2021-05-06 11:39:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-06 11:39:29,445 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.375) internal successors, (172), 31 states have internal predecessors, (172), 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 175 [2021-05-06 11:39:29,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:29,446 INFO L225 Difference]: With dead ends: 196 [2021-05-06 11:39:29,446 INFO L226 Difference]: Without dead ends: 186 [2021-05-06 11:39:29,447 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1190.2ms TimeCoverageRelationStatistics Valid=177, Invalid=3483, Unknown=0, NotChecked=0, Total=3660 [2021-05-06 11:39:29,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-05-06 11:39:29,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 182. [2021-05-06 11:39:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 178 states have (on average 1.0112359550561798) internal successors, (180), 178 states have internal predecessors, (180), 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 11:39:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 183 transitions. [2021-05-06 11:39:29,472 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 183 transitions. Word has length 175 [2021-05-06 11:39:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:29,472 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 183 transitions. [2021-05-06 11:39:29,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 5.375) internal successors, (172), 31 states have internal predecessors, (172), 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 11:39:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 183 transitions. [2021-05-06 11:39:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-05-06 11:39:29,473 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:29,473 INFO L523 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:29,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-06 11:39:29,474 INFO L428 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:29,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:29,474 INFO L82 PathProgramCache]: Analyzing trace with hash 455905090, now seen corresponding path program 28 times [2021-05-06 11:39:29,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:29,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160622787] [2021-05-06 11:39:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:29,484 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:29,484 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:29,485 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:30,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:30,240 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 11:39:30,240 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:30,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160622787] [2021-05-06 11:39:30,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [160622787] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:30,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:30,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-05-06 11:39:30,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102815546] [2021-05-06 11:39:30,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-06 11:39:30,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:30,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-06 11:39:30,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2021-05-06 11:39:30,242 INFO L87 Difference]: Start difference. First operand 182 states and 183 transitions. Second operand has 33 states, 33 states have (on average 5.393939393939394) internal successors, (178), 32 states have internal predecessors, (178), 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 11:39:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:32,654 INFO L93 Difference]: Finished difference Result 202 states and 205 transitions. [2021-05-06 11:39:32,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-06 11:39:32,655 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 5.393939393939394) internal successors, (178), 32 states have internal predecessors, (178), 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 181 [2021-05-06 11:39:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:32,656 INFO L225 Difference]: With dead ends: 202 [2021-05-06 11:39:32,656 INFO L226 Difference]: Without dead ends: 192 [2021-05-06 11:39:32,657 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1284.5ms TimeCoverageRelationStatistics Valid=183, Invalid=3723, Unknown=0, NotChecked=0, Total=3906 [2021-05-06 11:39:32,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-05-06 11:39:32,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 188. [2021-05-06 11:39:32,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 184 states have (on average 1.0108695652173914) internal successors, (186), 184 states have internal predecessors, (186), 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 11:39:32,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 189 transitions. [2021-05-06 11:39:32,686 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 189 transitions. Word has length 181 [2021-05-06 11:39:32,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:32,686 INFO L480 AbstractCegarLoop]: Abstraction has 188 states and 189 transitions. [2021-05-06 11:39:32,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 5.393939393939394) internal successors, (178), 32 states have internal predecessors, (178), 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 11:39:32,686 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 189 transitions. [2021-05-06 11:39:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-05-06 11:39:32,687 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:32,687 INFO L523 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:32,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-06 11:39:32,687 INFO L428 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:32,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:32,688 INFO L82 PathProgramCache]: Analyzing trace with hash 990762314, now seen corresponding path program 29 times [2021-05-06 11:39:32,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:32,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684569324] [2021-05-06 11:39:32,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:32,695 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:32,695 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:32,696 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:33,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:33,434 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 11:39:33,434 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:33,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684569324] [2021-05-06 11:39:33,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [684569324] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:33,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:33,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-05-06 11:39:33,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770456459] [2021-05-06 11:39:33,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-06 11:39:33,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:33,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-06 11:39:33,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2021-05-06 11:39:33,436 INFO L87 Difference]: Start difference. First operand 188 states and 189 transitions. Second operand has 34 states, 34 states have (on average 5.411764705882353) internal successors, (184), 33 states have internal predecessors, (184), 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 11:39:36,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:36,037 INFO L93 Difference]: Finished difference Result 208 states and 211 transitions. [2021-05-06 11:39:36,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-06 11:39:36,037 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.411764705882353) internal successors, (184), 33 states have internal predecessors, (184), 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 187 [2021-05-06 11:39:36,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:36,038 INFO L225 Difference]: With dead ends: 208 [2021-05-06 11:39:36,038 INFO L226 Difference]: Without dead ends: 198 [2021-05-06 11:39:36,039 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1280.8ms TimeCoverageRelationStatistics Valid=189, Invalid=3971, Unknown=0, NotChecked=0, Total=4160 [2021-05-06 11:39:36,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-05-06 11:39:36,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2021-05-06 11:39:36,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 190 states have (on average 1.0105263157894737) internal successors, (192), 190 states have internal predecessors, (192), 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 11:39:36,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 195 transitions. [2021-05-06 11:39:36,069 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 195 transitions. Word has length 187 [2021-05-06 11:39:36,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:36,070 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 195 transitions. [2021-05-06 11:39:36,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 5.411764705882353) internal successors, (184), 33 states have internal predecessors, (184), 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 11:39:36,070 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 195 transitions. [2021-05-06 11:39:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-05-06 11:39:36,070 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:36,071 INFO L523 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:36,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-06 11:39:36,071 INFO L428 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:36,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:36,072 INFO L82 PathProgramCache]: Analyzing trace with hash -913017518, now seen corresponding path program 30 times [2021-05-06 11:39:36,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:36,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427883698] [2021-05-06 11:39:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:36,078 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:36,078 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:36,079 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:36,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:36,865 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 11:39:36,866 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:36,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427883698] [2021-05-06 11:39:36,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1427883698] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:36,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:36,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-06 11:39:36,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807150495] [2021-05-06 11:39:36,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-06 11:39:36,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:36,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-06 11:39:36,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2021-05-06 11:39:36,868 INFO L87 Difference]: Start difference. First operand 194 states and 195 transitions. Second operand has 35 states, 35 states have (on average 5.428571428571429) internal successors, (190), 34 states have internal predecessors, (190), 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 11:39:39,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:39,651 INFO L93 Difference]: Finished difference Result 214 states and 217 transitions. [2021-05-06 11:39:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-06 11:39:39,652 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 5.428571428571429) internal successors, (190), 34 states have internal predecessors, (190), 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 193 [2021-05-06 11:39:39,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:39,653 INFO L225 Difference]: With dead ends: 214 [2021-05-06 11:39:39,653 INFO L226 Difference]: Without dead ends: 204 [2021-05-06 11:39:39,654 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 1379.9ms TimeCoverageRelationStatistics Valid=195, Invalid=4227, Unknown=0, NotChecked=0, Total=4422 [2021-05-06 11:39:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-05-06 11:39:39,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 200. [2021-05-06 11:39:39,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 196 states have (on average 1.010204081632653) internal successors, (198), 196 states have internal predecessors, (198), 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 11:39:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 201 transitions. [2021-05-06 11:39:39,687 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 201 transitions. Word has length 193 [2021-05-06 11:39:39,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:39,687 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 201 transitions. [2021-05-06 11:39:39,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 5.428571428571429) internal successors, (190), 34 states have internal predecessors, (190), 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 11:39:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 201 transitions. [2021-05-06 11:39:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-05-06 11:39:39,688 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:39,688 INFO L523 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:39,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-06 11:39:39,688 INFO L428 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:39,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:39,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1742008154, now seen corresponding path program 31 times [2021-05-06 11:39:39,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:39,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538325396] [2021-05-06 11:39:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:39,696 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:39,696 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:39,697 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:40,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:40,589 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 11:39:40,590 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:40,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538325396] [2021-05-06 11:39:40,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [538325396] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:40,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:40,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-05-06 11:39:40,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773080012] [2021-05-06 11:39:40,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-06 11:39:40,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:40,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-06 11:39:40,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2021-05-06 11:39:40,592 INFO L87 Difference]: Start difference. First operand 200 states and 201 transitions. Second operand has 36 states, 36 states have (on average 5.444444444444445) internal successors, (196), 35 states have internal predecessors, (196), 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 11:39:43,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:43,407 INFO L93 Difference]: Finished difference Result 220 states and 223 transitions. [2021-05-06 11:39:43,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-06 11:39:43,407 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.444444444444445) internal successors, (196), 35 states have internal predecessors, (196), 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 199 [2021-05-06 11:39:43,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:43,408 INFO L225 Difference]: With dead ends: 220 [2021-05-06 11:39:43,408 INFO L226 Difference]: Without dead ends: 210 [2021-05-06 11:39:43,409 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1500.4ms TimeCoverageRelationStatistics Valid=201, Invalid=4491, Unknown=0, NotChecked=0, Total=4692 [2021-05-06 11:39:43,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-05-06 11:39:43,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 206. [2021-05-06 11:39:43,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 202 states have (on average 1.00990099009901) internal successors, (204), 202 states have internal predecessors, (204), 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 11:39:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 207 transitions. [2021-05-06 11:39:43,443 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 207 transitions. Word has length 199 [2021-05-06 11:39:43,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:43,443 INFO L480 AbstractCegarLoop]: Abstraction has 206 states and 207 transitions. [2021-05-06 11:39:43,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 5.444444444444445) internal successors, (196), 35 states have internal predecessors, (196), 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 11:39:43,444 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 207 transitions. [2021-05-06 11:39:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-05-06 11:39:43,444 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:43,444 INFO L523 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:43,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-06 11:39:43,445 INFO L428 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:43,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:43,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1249655966, now seen corresponding path program 32 times [2021-05-06 11:39:43,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:43,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645735342] [2021-05-06 11:39:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:43,452 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:43,452 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:43,453 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:44,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:44,273 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 11:39:44,273 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:44,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645735342] [2021-05-06 11:39:44,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1645735342] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:44,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:44,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-05-06 11:39:44,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619193621] [2021-05-06 11:39:44,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-06 11:39:44,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:44,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-06 11:39:44,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2021-05-06 11:39:44,274 INFO L87 Difference]: Start difference. First operand 206 states and 207 transitions. Second operand has 37 states, 37 states have (on average 5.45945945945946) internal successors, (202), 36 states have internal predecessors, (202), 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 11:39:47,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:47,212 INFO L93 Difference]: Finished difference Result 226 states and 229 transitions. [2021-05-06 11:39:47,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-06 11:39:47,212 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.45945945945946) internal successors, (202), 36 states have internal predecessors, (202), 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 205 [2021-05-06 11:39:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:47,213 INFO L225 Difference]: With dead ends: 226 [2021-05-06 11:39:47,213 INFO L226 Difference]: Without dead ends: 216 [2021-05-06 11:39:47,214 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1464.7ms TimeCoverageRelationStatistics Valid=207, Invalid=4763, Unknown=0, NotChecked=0, Total=4970 [2021-05-06 11:39:47,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-05-06 11:39:47,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 212. [2021-05-06 11:39:47,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 208 states have (on average 1.0096153846153846) internal successors, (210), 208 states have internal predecessors, (210), 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 11:39:47,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 213 transitions. [2021-05-06 11:39:47,250 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 213 transitions. Word has length 205 [2021-05-06 11:39:47,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:47,250 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 213 transitions. [2021-05-06 11:39:47,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 5.45945945945946) internal successors, (202), 36 states have internal predecessors, (202), 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 11:39:47,250 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 213 transitions. [2021-05-06 11:39:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-05-06 11:39:47,251 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:47,251 INFO L523 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:47,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-06 11:39:47,252 INFO L428 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:47,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:47,252 INFO L82 PathProgramCache]: Analyzing trace with hash -655003286, now seen corresponding path program 33 times [2021-05-06 11:39:47,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:47,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220082417] [2021-05-06 11:39:47,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:47,259 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:47,259 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:47,260 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:48,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:48,104 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 11:39:48,104 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:48,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220082417] [2021-05-06 11:39:48,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [220082417] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:48,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:48,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-05-06 11:39:48,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557506501] [2021-05-06 11:39:48,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-06 11:39:48,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:48,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-06 11:39:48,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2021-05-06 11:39:48,106 INFO L87 Difference]: Start difference. First operand 212 states and 213 transitions. Second operand has 38 states, 38 states have (on average 5.473684210526316) internal successors, (208), 37 states have internal predecessors, (208), 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 11:39:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:51,296 INFO L93 Difference]: Finished difference Result 232 states and 235 transitions. [2021-05-06 11:39:51,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-06 11:39:51,297 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.473684210526316) internal successors, (208), 37 states have internal predecessors, (208), 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 211 [2021-05-06 11:39:51,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:51,298 INFO L225 Difference]: With dead ends: 232 [2021-05-06 11:39:51,298 INFO L226 Difference]: Without dead ends: 222 [2021-05-06 11:39:51,298 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 1558.3ms TimeCoverageRelationStatistics Valid=213, Invalid=5043, Unknown=0, NotChecked=0, Total=5256 [2021-05-06 11:39:51,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-05-06 11:39:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 218. [2021-05-06 11:39:51,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 214 states have (on average 1.0093457943925233) internal successors, (216), 214 states have internal predecessors, (216), 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 11:39:51,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 219 transitions. [2021-05-06 11:39:51,336 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 219 transitions. Word has length 211 [2021-05-06 11:39:51,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:51,337 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 219 transitions. [2021-05-06 11:39:51,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 5.473684210526316) internal successors, (208), 37 states have internal predecessors, (208), 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 11:39:51,337 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 219 transitions. [2021-05-06 11:39:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-05-06 11:39:51,338 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:51,338 INFO L523 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:51,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-06 11:39:51,338 INFO L428 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:51,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:51,338 INFO L82 PathProgramCache]: Analyzing trace with hash 119437682, now seen corresponding path program 34 times [2021-05-06 11:39:51,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:51,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383451863] [2021-05-06 11:39:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:51,346 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:51,346 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:51,347 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:52,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:52,273 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 11:39:52,273 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:52,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383451863] [2021-05-06 11:39:52,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1383451863] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:52,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:52,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-05-06 11:39:52,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161549591] [2021-05-06 11:39:52,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-06 11:39:52,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:52,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-06 11:39:52,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2021-05-06 11:39:52,274 INFO L87 Difference]: Start difference. First operand 218 states and 219 transitions. Second operand has 39 states, 39 states have (on average 5.487179487179487) internal successors, (214), 38 states have internal predecessors, (214), 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 11:39:55,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:39:55,568 INFO L93 Difference]: Finished difference Result 238 states and 241 transitions. [2021-05-06 11:39:55,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-06 11:39:55,569 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.487179487179487) internal successors, (214), 38 states have internal predecessors, (214), 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 217 [2021-05-06 11:39:55,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:39:55,570 INFO L225 Difference]: With dead ends: 238 [2021-05-06 11:39:55,570 INFO L226 Difference]: Without dead ends: 228 [2021-05-06 11:39:55,571 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 1659.8ms TimeCoverageRelationStatistics Valid=219, Invalid=5331, Unknown=0, NotChecked=0, Total=5550 [2021-05-06 11:39:55,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-05-06 11:39:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2021-05-06 11:39:55,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 220 states have (on average 1.009090909090909) internal successors, (222), 220 states have internal predecessors, (222), 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 11:39:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 225 transitions. [2021-05-06 11:39:55,601 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 225 transitions. Word has length 217 [2021-05-06 11:39:55,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:39:55,601 INFO L480 AbstractCegarLoop]: Abstraction has 224 states and 225 transitions. [2021-05-06 11:39:55,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 5.487179487179487) internal successors, (214), 38 states have internal predecessors, (214), 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 11:39:55,602 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 225 transitions. [2021-05-06 11:39:55,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-05-06 11:39:55,602 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:39:55,603 INFO L523 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:39:55,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-05-06 11:39:55,603 INFO L428 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:39:55,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:39:55,603 INFO L82 PathProgramCache]: Analyzing trace with hash 194206586, now seen corresponding path program 35 times [2021-05-06 11:39:55,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:39:55,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748635206] [2021-05-06 11:39:55,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:39:55,610 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:39:55,610 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:39:55,611 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:39:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:39:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:39:56,554 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 11:39:56,555 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:39:56,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748635206] [2021-05-06 11:39:56,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1748635206] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:39:56,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:39:56,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-05-06 11:39:56,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737697775] [2021-05-06 11:39:56,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-06 11:39:56,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:39:56,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-06 11:39:56,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 11:39:56,556 INFO L87 Difference]: Start difference. First operand 224 states and 225 transitions. Second operand has 40 states, 40 states have (on average 5.5) internal successors, (220), 39 states have internal predecessors, (220), 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 11:40:00,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:00,075 INFO L93 Difference]: Finished difference Result 244 states and 247 transitions. [2021-05-06 11:40:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-06 11:40:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.5) internal successors, (220), 39 states have internal predecessors, (220), 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 223 [2021-05-06 11:40:00,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:00,077 INFO L225 Difference]: With dead ends: 244 [2021-05-06 11:40:00,077 INFO L226 Difference]: Without dead ends: 234 [2021-05-06 11:40:00,078 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 1708.2ms TimeCoverageRelationStatistics Valid=225, Invalid=5627, Unknown=0, NotChecked=0, Total=5852 [2021-05-06 11:40:00,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-05-06 11:40:00,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2021-05-06 11:40:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 226 states have (on average 1.008849557522124) internal successors, (228), 226 states have internal predecessors, (228), 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 11:40:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 231 transitions. [2021-05-06 11:40:00,118 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 231 transitions. Word has length 223 [2021-05-06 11:40:00,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:00,118 INFO L480 AbstractCegarLoop]: Abstraction has 230 states and 231 transitions. [2021-05-06 11:40:00,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 5.5) internal successors, (220), 39 states have internal predecessors, (220), 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 11:40:00,118 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 231 transitions. [2021-05-06 11:40:00,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-05-06 11:40:00,119 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:00,119 INFO L523 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:00,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-05-06 11:40:00,120 INFO L428 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:00,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:00,120 INFO L82 PathProgramCache]: Analyzing trace with hash -796354686, now seen corresponding path program 36 times [2021-05-06 11:40:00,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:00,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337619099] [2021-05-06 11:40:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:00,128 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:40:00,128 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONLINEAR_UPDATE [2021-05-06 11:40:00,129 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:40:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:01,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:01,106 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 11:40:01,106 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:01,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337619099] [2021-05-06 11:40:01,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1337619099] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:01,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:01,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-05-06 11:40:01,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718819138] [2021-05-06 11:40:01,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-06 11:40:01,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:01,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-06 11:40:01,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2021-05-06 11:40:01,108 INFO L87 Difference]: Start difference. First operand 230 states and 231 transitions. Second operand has 41 states, 41 states have (on average 5.512195121951219) internal successors, (226), 40 states have internal predecessors, (226), 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 11:40:04,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:04,910 INFO L93 Difference]: Finished difference Result 250 states and 253 transitions. [2021-05-06 11:40:04,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-06 11:40:04,910 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.512195121951219) internal successors, (226), 40 states have internal predecessors, (226), 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 229 [2021-05-06 11:40:04,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:04,911 INFO L225 Difference]: With dead ends: 250 [2021-05-06 11:40:04,911 INFO L226 Difference]: Without dead ends: 240 [2021-05-06 11:40:04,912 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 1810.3ms TimeCoverageRelationStatistics Valid=231, Invalid=5931, Unknown=0, NotChecked=0, Total=6162 [2021-05-06 11:40:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-05-06 11:40:04,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 236. [2021-05-06 11:40:04,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 232 states have (on average 1.0086206896551724) internal successors, (234), 232 states have internal predecessors, (234), 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 11:40:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 237 transitions. [2021-05-06 11:40:04,946 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 237 transitions. Word has length 229 [2021-05-06 11:40:04,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:04,946 INFO L480 AbstractCegarLoop]: Abstraction has 236 states and 237 transitions. [2021-05-06 11:40:04,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 5.512195121951219) internal successors, (226), 40 states have internal predecessors, (226), 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 11:40:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 237 transitions. [2021-05-06 11:40:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-05-06 11:40:04,947 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:04,947 INFO L523 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:04,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-06 11:40:04,947 INFO L428 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:04,948 INFO L82 PathProgramCache]: Analyzing trace with hash -422400630, now seen corresponding path program 37 times [2021-05-06 11:40:04,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:04,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938190991] [2021-05-06 11:40:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:04,954 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:40:04,955 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:40:04,956 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:40:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:06,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:06,063 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 11:40:06,063 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:06,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938190991] [2021-05-06 11:40:06,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [938190991] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:06,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:06,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2021-05-06 11:40:06,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825154988] [2021-05-06 11:40:06,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-06 11:40:06,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:06,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-06 11:40:06,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2021-05-06 11:40:06,064 INFO L87 Difference]: Start difference. First operand 236 states and 237 transitions. Second operand has 42 states, 42 states have (on average 5.523809523809524) internal successors, (232), 41 states have internal predecessors, (232), 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 11:40:09,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:09,836 INFO L93 Difference]: Finished difference Result 256 states and 259 transitions. [2021-05-06 11:40:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-06 11:40:09,837 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.523809523809524) internal successors, (232), 41 states have internal predecessors, (232), 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 235 [2021-05-06 11:40:09,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:09,837 INFO L225 Difference]: With dead ends: 256 [2021-05-06 11:40:09,837 INFO L226 Difference]: Without dead ends: 246 [2021-05-06 11:40:09,838 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 1941.2ms TimeCoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2021-05-06 11:40:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-05-06 11:40:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 242. [2021-05-06 11:40:09,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 238 states have (on average 1.0084033613445378) internal successors, (240), 238 states have internal predecessors, (240), 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 11:40:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 243 transitions. [2021-05-06 11:40:09,885 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 243 transitions. Word has length 235 [2021-05-06 11:40:09,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:09,885 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 243 transitions. [2021-05-06 11:40:09,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 5.523809523809524) internal successors, (232), 41 states have internal predecessors, (232), 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 11:40:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 243 transitions. [2021-05-06 11:40:09,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-05-06 11:40:09,886 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:09,887 INFO L523 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:09,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-05-06 11:40:09,887 INFO L428 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:09,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:09,887 INFO L82 PathProgramCache]: Analyzing trace with hash 233184658, now seen corresponding path program 38 times [2021-05-06 11:40:09,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:09,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335704336] [2021-05-06 11:40:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:09,894 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:40:09,894 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:40:09,895 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:40:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:10,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:10,936 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 11:40:10,936 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:10,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335704336] [2021-05-06 11:40:10,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1335704336] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:10,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:10,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-05-06 11:40:10,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349539990] [2021-05-06 11:40:10,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-06 11:40:10,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:10,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-06 11:40:10,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2021-05-06 11:40:10,938 INFO L87 Difference]: Start difference. First operand 242 states and 243 transitions. Second operand has 43 states, 43 states have (on average 5.534883720930233) internal successors, (238), 42 states have internal predecessors, (238), 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 11:40:14,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:14,939 INFO L93 Difference]: Finished difference Result 262 states and 265 transitions. [2021-05-06 11:40:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-06 11:40:14,940 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.534883720930233) internal successors, (238), 42 states have internal predecessors, (238), 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 241 [2021-05-06 11:40:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:14,940 INFO L225 Difference]: With dead ends: 262 [2021-05-06 11:40:14,940 INFO L226 Difference]: Without dead ends: 252 [2021-05-06 11:40:14,941 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 1907.5ms TimeCoverageRelationStatistics Valid=243, Invalid=6563, Unknown=0, NotChecked=0, Total=6806 [2021-05-06 11:40:14,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-05-06 11:40:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 248. [2021-05-06 11:40:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 244 states have (on average 1.0081967213114753) internal successors, (246), 244 states have internal predecessors, (246), 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 11:40:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 249 transitions. [2021-05-06 11:40:14,990 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 249 transitions. Word has length 241 [2021-05-06 11:40:14,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:14,991 INFO L480 AbstractCegarLoop]: Abstraction has 248 states and 249 transitions. [2021-05-06 11:40:14,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 5.534883720930233) internal successors, (238), 42 states have internal predecessors, (238), 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 11:40:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 249 transitions. [2021-05-06 11:40:14,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-05-06 11:40:14,992 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:14,992 INFO L523 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:14,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-05-06 11:40:14,992 INFO L428 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:14,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1143511142, now seen corresponding path program 39 times [2021-05-06 11:40:14,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:14,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697952459] [2021-05-06 11:40:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:15,000 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:40:15,000 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:40:15,001 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:40:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:16,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:16,142 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 11:40:16,143 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:16,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697952459] [2021-05-06 11:40:16,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1697952459] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:16,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:16,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-05-06 11:40:16,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264279447] [2021-05-06 11:40:16,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-06 11:40:16,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:16,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-06 11:40:16,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2021-05-06 11:40:16,144 INFO L87 Difference]: Start difference. First operand 248 states and 249 transitions. Second operand has 44 states, 44 states have (on average 5.545454545454546) internal successors, (244), 43 states have internal predecessors, (244), 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 11:40:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:20,372 INFO L93 Difference]: Finished difference Result 268 states and 271 transitions. [2021-05-06 11:40:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-06 11:40:20,373 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 5.545454545454546) internal successors, (244), 43 states have internal predecessors, (244), 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 247 [2021-05-06 11:40:20,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:20,373 INFO L225 Difference]: With dead ends: 268 [2021-05-06 11:40:20,374 INFO L226 Difference]: Without dead ends: 258 [2021-05-06 11:40:20,374 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 2059.9ms TimeCoverageRelationStatistics Valid=249, Invalid=6891, Unknown=0, NotChecked=0, Total=7140 [2021-05-06 11:40:20,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-05-06 11:40:20,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 254. [2021-05-06 11:40:20,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 250 states have (on average 1.008) internal successors, (252), 250 states have internal predecessors, (252), 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 11:40:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 255 transitions. [2021-05-06 11:40:20,427 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 255 transitions. Word has length 247 [2021-05-06 11:40:20,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:20,427 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 255 transitions. [2021-05-06 11:40:20,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 5.545454545454546) internal successors, (244), 43 states have internal predecessors, (244), 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 11:40:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 255 transitions. [2021-05-06 11:40:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-05-06 11:40:20,429 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:20,429 INFO L523 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:20,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-06 11:40:20,429 INFO L428 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:20,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:20,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1520759902, now seen corresponding path program 40 times [2021-05-06 11:40:20,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:20,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748248867] [2021-05-06 11:40:20,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:20,438 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:40:20,439 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:40:20,440 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:40:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:21,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:21,606 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 11:40:21,606 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:21,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748248867] [2021-05-06 11:40:21,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1748248867] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:21,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:21,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2021-05-06 11:40:21,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432916291] [2021-05-06 11:40:21,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-06 11:40:21,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:21,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-06 11:40:21,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2021-05-06 11:40:21,607 INFO L87 Difference]: Start difference. First operand 254 states and 255 transitions. Second operand has 45 states, 45 states have (on average 5.555555555555555) internal successors, (250), 44 states have internal predecessors, (250), 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 11:40:25,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:25,955 INFO L93 Difference]: Finished difference Result 274 states and 277 transitions. [2021-05-06 11:40:25,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-06 11:40:25,955 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.555555555555555) internal successors, (250), 44 states have internal predecessors, (250), 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 253 [2021-05-06 11:40:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:25,956 INFO L225 Difference]: With dead ends: 274 [2021-05-06 11:40:25,956 INFO L226 Difference]: Without dead ends: 264 [2021-05-06 11:40:25,957 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 2096.7ms TimeCoverageRelationStatistics Valid=255, Invalid=7227, Unknown=0, NotChecked=0, Total=7482 [2021-05-06 11:40:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-05-06 11:40:25,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 260. [2021-05-06 11:40:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 256 states have (on average 1.0078125) internal successors, (258), 256 states have internal predecessors, (258), 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 11:40:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 261 transitions. [2021-05-06 11:40:25,995 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 261 transitions. Word has length 253 [2021-05-06 11:40:25,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:25,995 INFO L480 AbstractCegarLoop]: Abstraction has 260 states and 261 transitions. [2021-05-06 11:40:25,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 5.555555555555555) internal successors, (250), 44 states have internal predecessors, (250), 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 11:40:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 261 transitions. [2021-05-06 11:40:25,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-05-06 11:40:25,997 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:25,997 INFO L523 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:25,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-05-06 11:40:25,997 INFO L428 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:25,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:25,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1170573738, now seen corresponding path program 41 times [2021-05-06 11:40:25,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:25,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398318758] [2021-05-06 11:40:25,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:26,005 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:40:26,005 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-06 11:40:26,006 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:40:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:27,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:27,195 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 11:40:27,195 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:27,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398318758] [2021-05-06 11:40:27,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1398318758] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:27,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:27,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2021-05-06 11:40:27,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223714518] [2021-05-06 11:40:27,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-06 11:40:27,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:27,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-06 11:40:27,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2021-05-06 11:40:27,197 INFO L87 Difference]: Start difference. First operand 260 states and 261 transitions. Second operand has 46 states, 46 states have (on average 5.565217391304348) internal successors, (256), 45 states have internal predecessors, (256), 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 11:40:31,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:31,716 INFO L93 Difference]: Finished difference Result 280 states and 283 transitions. [2021-05-06 11:40:31,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-06 11:40:31,716 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.565217391304348) internal successors, (256), 45 states have internal predecessors, (256), 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 259 [2021-05-06 11:40:31,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:31,717 INFO L225 Difference]: With dead ends: 280 [2021-05-06 11:40:31,717 INFO L226 Difference]: Without dead ends: 270 [2021-05-06 11:40:31,718 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 2187.4ms TimeCoverageRelationStatistics Valid=261, Invalid=7571, Unknown=0, NotChecked=0, Total=7832 [2021-05-06 11:40:31,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-05-06 11:40:31,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 266. [2021-05-06 11:40:31,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 262 states have (on average 1.0076335877862594) internal successors, (264), 262 states have internal predecessors, (264), 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 11:40:31,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 267 transitions. [2021-05-06 11:40:31,774 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 267 transitions. Word has length 259 [2021-05-06 11:40:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:31,775 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 267 transitions. [2021-05-06 11:40:31,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 5.565217391304348) internal successors, (256), 45 states have internal predecessors, (256), 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 11:40:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 267 transitions. [2021-05-06 11:40:31,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-05-06 11:40:31,776 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:40:31,776 INFO L523 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:40:31,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-05-06 11:40:31,776 INFO L428 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:40:31,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:40:31,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1728799154, now seen corresponding path program 42 times [2021-05-06 11:40:31,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:40:31,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553995737] [2021-05-06 11:40:31,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:40:31,787 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:40:31,788 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONLINEAR_UPDATE [2021-05-06 11:40:31,789 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:40:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:34,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:40:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:40:34,021 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 11:40:34,021 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:40:34,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553995737] [2021-05-06 11:40:34,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [553995737] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:40:34,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:40:34,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2021-05-06 11:40:34,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344481899] [2021-05-06 11:40:34,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-06 11:40:34,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:40:34,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-06 11:40:34,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=2162, Unknown=0, NotChecked=0, Total=2256 [2021-05-06 11:40:34,022 INFO L87 Difference]: Start difference. First operand 266 states and 267 transitions. Second operand has 48 states, 48 states have (on average 5.458333333333333) internal successors, (262), 47 states have internal predecessors, (262), 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 11:40:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:40:37,263 INFO L93 Difference]: Finished difference Result 269 states and 270 transitions. [2021-05-06 11:40:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-06 11:40:37,264 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.458333333333333) internal successors, (262), 47 states have internal predecessors, (262), 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 265 [2021-05-06 11:40:37,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:40:37,264 INFO L225 Difference]: With dead ends: 269 [2021-05-06 11:40:37,264 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 11:40:37,265 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1490.6ms TimeCoverageRelationStatistics Valid=106, Invalid=2344, Unknown=0, NotChecked=0, Total=2450 [2021-05-06 11:40:37,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 11:40:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 11:40:37,265 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 11:40:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 11:40:37,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 265 [2021-05-06 11:40:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:40:37,266 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 11:40:37,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 5.458333333333333) internal successors, (262), 47 states have internal predecessors, (262), 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 11:40:37,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 11:40:37,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 11:40:37,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-05-06 11:40:37,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 11:40:37,511 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-05-06 11:40:37,648 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2021-05-06 11:40:39,084 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 316 DAG size of output: 230 [2021-05-06 11:40:42,174 WARN L205 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 315 DAG size of output: 313 [2021-05-06 11:40:44,789 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 318 DAG size of output: 228 [2021-05-06 11:40:45,028 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 7 [2021-05-06 11:40:47,620 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 313 DAG size of output: 227 [2021-05-06 11:40:50,365 WARN L205 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 319 DAG size of output: 233 [2021-05-06 11:40:50,654 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 14 [2021-05-06 11:40:53,137 WARN L205 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 319 DAG size of output: 233 [2021-05-06 11:40:55,727 WARN L205 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 318 DAG size of output: 228 [2021-05-06 11:41:03,223 WARN L205 SmtUtils]: Spent 7.49 s on a formula simplification. DAG size of input: 402 DAG size of output: 236 [2021-05-06 11:41:03,226 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-05-06 11:41:03,226 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-05-06 11:41:03,226 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-05-06 11:41:03,227 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2021-05-06 11:41:03,227 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#valid)| |#valid|) (= |#t~string51.base| |old(#t~string51.base)|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |#t~string51.offset| |old(#t~string51.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2021-05-06 11:41:03,227 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2021-05-06 11:41:03,227 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:41:03,227 INFO L194 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2021-05-06 11:41:03,227 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 11:41:03,227 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:41:03,227 INFO L194 CegarLoopUtils]: At program point L161(lines 161 224) the Hoare annotation is: (or (= ~Id_MCDC_93~0 0) (not (= |old(~Id_MCDC_93~0)| 0))) [2021-05-06 11:41:03,227 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 133 225) the Hoare annotation is: true [2021-05-06 11:41:03,227 INFO L194 CegarLoopUtils]: At program point L182(lines 182 217) the Hoare annotation is: (let ((.cse0 (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1))) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 23) .cse1) (and (<= 5 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 5) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 5)) (and .cse0 (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) .cse1 (<= ~Id_MCDC_93~0 29)) (and (<= ~Id_MCDC_93~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) .cse0 .cse1) (and (<= 2 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 2) (<= ~Id_MCDC_93~0 2) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= ~Id_MCDC_93~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 11) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) (<= ~Id_MCDC_93~0 16) .cse0 (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) .cse0 (<= ~Id_MCDC_93~0 7) (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 13) (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 32) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32) (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 40) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 40) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 14) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse0 .cse1 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) (<= ~Id_MCDC_93~0 15) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (= ~Id_MCDC_93~0 0) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) (<= ~Id_MCDC_93~0 18) .cse0 .cse1 (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse0 (<= ~Id_MCDC_93~0 22) .cse1 (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse0 (<= ~Id_MCDC_93~0 10) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 8) (<= 8 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 8) .cse1) (and (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 31) (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) .cse0 .cse1) (and (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 36) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 36)) (and .cse0 (<= ~Id_MCDC_93~0 34) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 34)) (and (<= ~Id_MCDC_93~0 24) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 1) (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 26) (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) .cse0 (<= ~Id_MCDC_93~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) (<= ~Id_MCDC_93~0 30)) (and (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= 41 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 41) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 17) (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse0 .cse1) (and (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse0 .cse1 (<= ~Id_MCDC_93~0 21)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 (<= ~Id_MCDC_93~0 9) .cse1) (not (= |old(~Id_MCDC_93~0)| 0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse0 (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 3) (<= ~Id_MCDC_93~0 3) (<= 3 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse0 .cse1))) [2021-05-06 11:41:03,228 INFO L194 CegarLoopUtils]: At program point L180(lines 180 222) the Hoare annotation is: (let ((.cse0 (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1))) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 23) .cse1) (and (<= 5 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 5) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 5)) (and .cse0 (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) .cse1 (<= ~Id_MCDC_93~0 29)) (and (<= ~Id_MCDC_93~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) .cse0 .cse1) (and (<= 2 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 2) (<= ~Id_MCDC_93~0 2) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= ~Id_MCDC_93~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 11) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) (<= ~Id_MCDC_93~0 16) .cse0 (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) .cse0 (<= ~Id_MCDC_93~0 7) (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 13) (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 32) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32) (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 40) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 40) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 14) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse0 .cse1 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) (<= ~Id_MCDC_93~0 15) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (= ~Id_MCDC_93~0 0) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) (<= ~Id_MCDC_93~0 18) .cse0 .cse1 (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse0 (<= ~Id_MCDC_93~0 22) .cse1 (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse0 (<= ~Id_MCDC_93~0 10) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 8) (<= 8 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 8) .cse1) (and (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 31) (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) .cse0 .cse1) (and (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 36) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 36)) (and .cse0 (<= ~Id_MCDC_93~0 34) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 34)) (and (<= ~Id_MCDC_93~0 24) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 1) (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 26) (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) .cse0 (<= ~Id_MCDC_93~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) (<= ~Id_MCDC_93~0 30)) (and (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= 41 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 41) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 17) (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse0 .cse1) (and (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse0 .cse1 (<= ~Id_MCDC_93~0 21)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 (<= ~Id_MCDC_93~0 9) .cse1) (not (= |old(~Id_MCDC_93~0)| 0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse0 (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 3) (<= ~Id_MCDC_93~0 3) (<= 3 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse0 .cse1))) [2021-05-06 11:41:03,228 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 133 225) the Hoare annotation is: true [2021-05-06 11:41:03,228 INFO L194 CegarLoopUtils]: At program point L199(lines 199 209) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse0 (< 0 (+ .cse2 1))) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 31) (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30)) (and .cse0 (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) .cse1 (<= ~Id_MCDC_93~0 30)) (and (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) (<= ~Id_MCDC_93~0 16) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 35) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 34)) (and (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 39) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 33) (<= main_~Id_MCDC_89__Id_MCDC_96~0 32) (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 18) (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse0 .cse1) (and (<= 5 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 6) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 5)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= ~Id_MCDC_93~0 21)) (and (= |main_#t~mem52| 0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= 41 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 (+ (* 4294967296 .cse2) 41)) .cse1 (<= .cse2 0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (<= ~Id_MCDC_93~0 8) .cse0 (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 3) (<= 2 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 2) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) (<= ~Id_MCDC_93~0 17) .cse0 (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= ~Id_MCDC_93~0 5) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 37) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 36)) (and (<= 8 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 9) (<= main_~Id_MCDC_89__Id_MCDC_96~0 8) .cse1) (and (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 15) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse0 .cse1 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse0 (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 13) .cse0 (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) (<= ~Id_MCDC_93~0 12) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 27) (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse0 (<= ~Id_MCDC_93~0 23) .cse1 (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) (<= ~Id_MCDC_93~0 24) (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 1) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 14) (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) (<= ~Id_MCDC_93~0 38) (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) (<= ~Id_MCDC_93~0 19) .cse0 .cse1 (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse0 (<= ~Id_MCDC_93~0 22) .cse1) (not (= |old(~Id_MCDC_93~0)| 0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) .cse0 (<= ~Id_MCDC_93~0 34) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (<= ~Id_MCDC_93~0 2) .cse0 (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 4) (<= main_~Id_MCDC_89__Id_MCDC_96~0 3) (<= 3 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 41) (<= main_~Id_MCDC_89__Id_MCDC_96~0 40) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 11) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 7) .cse1) (and (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 (<= ~Id_MCDC_93~0 10) .cse1)))) [2021-05-06 11:41:03,229 INFO L194 CegarLoopUtils]: At program point L193(line 193) the Hoare annotation is: (not (= |old(~Id_MCDC_93~0)| 0)) [2021-05-06 11:41:03,229 INFO L194 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) the Hoare annotation is: (not (= |old(~Id_MCDC_93~0)| 0)) [2021-05-06 11:41:03,229 INFO L194 CegarLoopUtils]: At program point L191(lines 191 210) the Hoare annotation is: (let ((.cse4 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse0 (= main_~Id_MCDC_89____CPAchecker_TMP_1~0 1)) (.cse1 (< 0 (+ .cse4 1))) (.cse2 (= main_~__VERIFIER_assert__Id_MCDC_92~0 1)) (.cse3 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 15) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1 .cse2 .cse3 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse1 .cse0 .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 .cse1 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3 (<= ~Id_MCDC_93~0 29)) (and (<= ~Id_MCDC_93~0 27) (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse0 .cse1 .cse2 .cse3) (and (<= 5 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 6) .cse0 .cse1 .cse2 .cse3 (<= main_~Id_MCDC_89__Id_MCDC_96~0 5)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= ~Id_MCDC_93~0 7) .cse2 .cse3) (and (<= ~Id_MCDC_93~0 14) (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 .cse1 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3) (and (<= ~Id_MCDC_93~0 37) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 .cse3 (<= main_~Id_MCDC_89__Id_MCDC_96~0 36)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse1 .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3) (and (<= ~Id_MCDC_93~0 4) (<= main_~Id_MCDC_89__Id_MCDC_96~0 3) .cse0 (<= 3 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 .cse2 .cse3) (and (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= 41 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 (+ (* 4294967296 .cse4) 41)) .cse0 .cse2 .cse3 (<= .cse4 0)) (and (<= ~Id_MCDC_93~0 35) .cse1 .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3 (<= main_~Id_MCDC_89__Id_MCDC_96~0 34)) (and (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) .cse0 .cse1 .cse2 .cse3) (and (<= ~Id_MCDC_93~0 11) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse0 .cse1 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1 .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 (<= ~Id_MCDC_93~0 28) .cse3) (and (<= 8 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= ~Id_MCDC_93~0 9) (<= main_~Id_MCDC_89__Id_MCDC_96~0 8) .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 .cse3 (<= ~Id_MCDC_93~0 21)) (and (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) .cse0 (<= ~Id_MCDC_93~0 5) .cse1 .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) (<= ~Id_MCDC_93~0 12) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) (<= ~Id_MCDC_93~0 16) .cse0 .cse1 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3) (and .cse0 .cse1 (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) .cse3 (<= ~Id_MCDC_93~0 30)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (<= ~Id_MCDC_93~0 8) .cse0 .cse1 (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= ~Id_MCDC_93~0 33) (<= main_~Id_MCDC_89__Id_MCDC_96~0 32) (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3) (and (<= ~Id_MCDC_93~0 1) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse0 .cse1 .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) (<= ~Id_MCDC_93~0 17) .cse0 .cse1 (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3) (and (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 39) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 (<= ~Id_MCDC_93~0 2) .cse1 (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 .cse3) (and (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse0 .cse1 (<= ~Id_MCDC_93~0 22) .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) .cse0 .cse1 (<= ~Id_MCDC_93~0 34) .cse2 (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) (<= ~Id_MCDC_93~0 38) (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 .cse3) (and (<= ~Id_MCDC_93~0 13) .cse0 .cse1 (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse2 .cse3) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 18) (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse0 .cse1 .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) (<= ~Id_MCDC_93~0 24) (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) (<= ~Id_MCDC_93~0 19) .cse0 .cse1 .cse2 .cse3 (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 .cse0 .cse2 .cse3) (not (= |old(~Id_MCDC_93~0)| 0)) (and (<= ~Id_MCDC_93~0 31) (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 .cse3 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30)) (and (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 41) (<= main_~Id_MCDC_89__Id_MCDC_96~0 40) .cse0 .cse1 .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse0 .cse1 .cse2 (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse3) (and (<= ~Id_MCDC_93~0 3) (<= 2 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 2) .cse0 .cse1 .cse2 .cse3) (and (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= ~Id_MCDC_93~0 10) .cse2 .cse3) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse0 .cse1 (<= ~Id_MCDC_93~0 23) .cse2 .cse3 (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0))))) [2021-05-06 11:41:03,229 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 133 225) the Hoare annotation is: (or (and (= ~Id_MCDC_93~0 0) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (not (= |old(~Id_MCDC_93~0)| 0))) [2021-05-06 11:41:03,230 INFO L194 CegarLoopUtils]: At program point L216(lines 182 217) the Hoare annotation is: (let ((.cse3 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse0 (= main_~Id_MCDC_89____CPAchecker_TMP_1~0 1)) (.cse1 (< 0 (+ .cse3 1))) (.cse2 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and .cse0 .cse1 (<= ~Id_MCDC_93~0 33) (<= main_~Id_MCDC_89__Id_MCDC_96~0 32) (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse0 .cse1 (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= ~Id_MCDC_93~0 37) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 (<= main_~Id_MCDC_89__Id_MCDC_96~0 36)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) (<= ~Id_MCDC_93~0 38) (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 .cse0 .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) (<= ~Id_MCDC_93~0 24) (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2) (and (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) .cse0 (<= ~Id_MCDC_93~0 5) .cse1 .cse2) (and (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= 41 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 (+ (* 4294967296 .cse3) 41)) .cse0 .cse2 (<= .cse3 0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) (<= ~Id_MCDC_93~0 12) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 .cse1 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 (<= ~Id_MCDC_93~0 29)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) (<= ~Id_MCDC_93~0 17) .cse0 .cse1 (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) .cse0 .cse1 .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse0 .cse1 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse2) (and (<= ~Id_MCDC_93~0 1) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse0 .cse1 .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse0 .cse1 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= ~Id_MCDC_93~0 13) .cse0 .cse1 (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse2) (and (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse1 .cse0 .cse2) (and (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 39) .cse1 .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse2) (and (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse0 .cse1 (<= ~Id_MCDC_93~0 22) .cse2) (and (<= ~Id_MCDC_93~0 27) (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse0 .cse1 .cse2) (and (<= ~Id_MCDC_93~0 11) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse0 .cse1 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and .cse0 .cse1 (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) .cse2 (<= ~Id_MCDC_93~0 30)) (and (<= ~Id_MCDC_93~0 14) (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 .cse1 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 41) (<= main_~Id_MCDC_89__Id_MCDC_96~0 40) .cse0 .cse1 .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1 .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 (<= ~Id_MCDC_93~0 2) .cse1 (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= ~Id_MCDC_93~0 31) (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse0 .cse1 (<= ~Id_MCDC_93~0 23) .cse2 (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) .cse0 .cse1 (<= ~Id_MCDC_93~0 34) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= 8 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= ~Id_MCDC_93~0 9) (<= main_~Id_MCDC_89__Id_MCDC_96~0 8) .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= ~Id_MCDC_93~0 7) .cse2) (and (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= ~Id_MCDC_93~0 10) .cse2) (and (<= ~Id_MCDC_93~0 35) .cse1 .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2 (<= main_~Id_MCDC_89__Id_MCDC_96~0 34)) (and (<= ~Id_MCDC_93~0 15) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1 .cse2 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 5 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 6) .cse0 .cse1 .cse2 (<= main_~Id_MCDC_89__Id_MCDC_96~0 5)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 (<= ~Id_MCDC_93~0 21)) (and (<= ~Id_MCDC_93~0 3) (<= 2 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 2) .cse0 .cse1 .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse0 (<= ~Id_MCDC_93~0 19) .cse1 .cse2 (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 4) (<= main_~Id_MCDC_89__Id_MCDC_96~0 3) .cse0 (<= 3 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 .cse2) (not (= |old(~Id_MCDC_93~0)| 0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (<= ~Id_MCDC_93~0 8) .cse0 .cse1 (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) (<= ~Id_MCDC_93~0 16) .cse0 .cse1 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) .cse2) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 18) (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse0 .cse1 .cse2)))) [2021-05-06 11:41:03,230 INFO L194 CegarLoopUtils]: At program point L204(lines 167 223) the Hoare annotation is: (let ((.cse0 (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1))) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 23) .cse1) (and (<= 5 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 5) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 5)) (and .cse0 (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) .cse1 (<= ~Id_MCDC_93~0 29)) (and (<= ~Id_MCDC_93~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) .cse0 .cse1) (and (<= 2 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 2) (<= ~Id_MCDC_93~0 2) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= ~Id_MCDC_93~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 11) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) (<= ~Id_MCDC_93~0 16) .cse0 (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) .cse0 (<= ~Id_MCDC_93~0 7) (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= ~Id_MCDC_93~0 41) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 13) (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 32) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32) (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 40) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 40) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 14) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse0 .cse1 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) (<= ~Id_MCDC_93~0 15) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (= ~Id_MCDC_93~0 0) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) (<= ~Id_MCDC_93~0 18) .cse0 .cse1 (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse0 (<= ~Id_MCDC_93~0 22) .cse1 (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse0 (<= ~Id_MCDC_93~0 10) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 8) (<= 8 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 8) .cse1) (and (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 31) (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) .cse0 .cse1) (and (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 36) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 36)) (and .cse0 (<= ~Id_MCDC_93~0 34) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 34)) (and (<= ~Id_MCDC_93~0 24) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 1) (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 26) (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) .cse0 (<= ~Id_MCDC_93~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) (<= ~Id_MCDC_93~0 30)) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 17) (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse0 .cse1) (and (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse0 .cse1 (<= ~Id_MCDC_93~0 21)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 (<= ~Id_MCDC_93~0 9) .cse1) (not (= |old(~Id_MCDC_93~0)| 0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse0 (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 3) (<= ~Id_MCDC_93~0 3) (<= 3 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse0 .cse1))) [2021-05-06 11:41:03,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 11:41:03 BoogieIcfgContainer [2021-05-06 11:41:03,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 11:41:03,275 INFO L168 Benchmark]: Toolchain (without parser) took 136591.24 ms. Allocated memory was 200.3 MB in the beginning and 502.3 MB in the end (delta: 302.0 MB). Free memory was 164.5 MB in the beginning and 263.9 MB in the end (delta: -99.4 MB). Peak memory consumption was 295.1 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:03,275 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 200.3 MB. Free memory is still 182.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 11:41:03,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.62 ms. Allocated memory is still 200.3 MB. Free memory was 164.3 MB in the beginning and 179.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:03,275 INFO L168 Benchmark]: Boogie Preprocessor took 70.67 ms. Allocated memory is still 200.3 MB. Free memory was 179.1 MB in the beginning and 175.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:03,276 INFO L168 Benchmark]: RCFGBuilder took 745.18 ms. Allocated memory is still 200.3 MB. Free memory was 175.4 MB in the beginning and 102.5 MB in the end (delta: 72.9 MB). Peak memory consumption was 73.4 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:03,276 INFO L168 Benchmark]: TraceAbstraction took 135374.06 ms. Allocated memory was 200.3 MB in the beginning and 502.3 MB in the end (delta: 302.0 MB). Free memory was 102.0 MB in the beginning and 263.9 MB in the end (delta: -161.9 MB). Peak memory consumption was 233.5 MB. Max. memory is 8.0 GB. [2021-05-06 11:41:03,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 200.3 MB. Free memory is still 182.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 396.62 ms. Allocated memory is still 200.3 MB. Free memory was 164.3 MB in the beginning and 179.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.67 ms. Allocated memory is still 200.3 MB. Free memory was 179.1 MB in the beginning and 175.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 745.18 ms. Allocated memory is still 200.3 MB. Free memory was 175.4 MB in the beginning and 102.5 MB in the end (delta: 72.9 MB). Peak memory consumption was 73.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 135374.06 ms. Allocated memory was 200.3 MB in the beginning and 502.3 MB in the end (delta: 302.0 MB). Free memory was 102.0 MB in the beginning and 263.9 MB in the end (delta: -161.9 MB). Peak memory consumption was 233.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: 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 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 109321.3ms, OverallIterations: 44, TraceHistogramMax: 43, EmptinessCheckTime: 42.7ms, AutomataDifference: 81325.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 25959.4ms, InitialAbstractionConstructionTime: 8.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2295 SDtfs, 3075 SDslu, 61529 SDs, 0 SdLazy, 117020 SolverSat, 1935 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46212.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2116 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1984 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13246 ImplicationChecksByTransitivity, 41253.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=43, InterpolantAutomatonStates: 1166, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 968.0ms AutomataMinimizationTime, 44 MinimizatonAttempts, 176 StatesRemovedByMinimization, 43 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 19 LocationsWithAnnotation, 19 PreInvPairs, 281 NumberOfFragments, 7037 HoareAnnotationTreeSize, 19 FomulaSimplifications, 176162378611844 FormulaSimplificationTreeSizeReduction, 4889.3ms HoareSimplificationTime, 19 FomulaSimplificationsInter, 52536039981321 FormulaSimplificationTreeSizeReductionInter, 21031.3ms 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: 167]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((Id_MCDC_89__Id_MCDC_96 <= 23 && 23 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 23) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) || ((((5 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 5) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 5)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 29 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 29) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 29)) || ((((Id_MCDC_93 <= 4 && 4 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 4) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((2 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 2) && Id_MCDC_93 <= 2) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 6 && Id_MCDC_93 <= 6) && 6 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((39 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 39) && Id_MCDC_93 <= 39) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 37 && Id_MCDC_89__Id_MCDC_96 <= 37) && 37 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 11 && Id_MCDC_89__Id_MCDC_96 <= 11) && 11 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 16 && Id_MCDC_93 <= 16) && 0 < Id_MCDC_93 / 4294967296 + 1) && 16 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 20 && 20 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 20) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((38 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 38) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 38) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 7 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 7) && 7 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((41 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 41) && Id_MCDC_93 <= 41) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 13 && Id_MCDC_89__Id_MCDC_96 <= 13) && 0 < Id_MCDC_93 / 4294967296 + 1) && 13 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 32 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 32) && 32 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 19 && 19 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 19) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 40 && 40 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 40) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 14 && Id_MCDC_89__Id_MCDC_96 <= 14) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 14 <= Id_MCDC_89__Id_MCDC_96)) || ((((Id_MCDC_89__Id_MCDC_96 <= 15 && Id_MCDC_93 <= 15) && 0 < Id_MCDC_93 / 4294967296 + 1) && 15 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((Id_MCDC_93 == 0 && Id_MCDC_89__Id_MCDC_96 == 0) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 18 && Id_MCDC_93 <= 18) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 18 <= Id_MCDC_89__Id_MCDC_96)) || ((((Id_MCDC_89__Id_MCDC_96 <= 22 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 22) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 22 <= Id_MCDC_89__Id_MCDC_96)) || ((((Id_MCDC_89__Id_MCDC_96 <= 10 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 10) && 10 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 8 && 8 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 8) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((31 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 31) && Id_MCDC_89__Id_MCDC_96 <= 31) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((36 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 36) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 36)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 34) && 34 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 34)) || ((((Id_MCDC_93 <= 24 && Id_MCDC_89__Id_MCDC_96 <= 24) && 0 < Id_MCDC_93 / 4294967296 + 1) && 24 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 12 && 0 < Id_MCDC_93 / 4294967296 + 1) && 12 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 12) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 27 && Id_MCDC_89__Id_MCDC_96 <= 27) && 0 < Id_MCDC_93 / 4294967296 + 1) && 27 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 1 && Id_MCDC_89__Id_MCDC_96 <= 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 1 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 26 && 26 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 26) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 33 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 33) && 33 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((30 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 30) && Id_MCDC_93 <= 30)) || ((((17 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 17) && Id_MCDC_89__Id_MCDC_96 <= 17) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((21 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 21) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 21)) || ((((Id_MCDC_89__Id_MCDC_96 <= 28 && 0 < Id_MCDC_93 / 4294967296 + 1) && 28 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 28) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((9 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 9) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 9) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || !(\old(Id_MCDC_93) == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 35 && Id_MCDC_93 <= 35) && 0 < Id_MCDC_93 / 4294967296 + 1) && 35 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 3 && Id_MCDC_93 <= 3) && 3 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 25 && 25 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 25) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((Id_MCDC_89____CPAchecker_TMP_1 == 1 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 33) && Id_MCDC_89__Id_MCDC_96 <= 32) && 32 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) || (((((Id_MCDC_89__Id_MCDC_96 <= 35 && Id_MCDC_93 <= 36) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 35 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_93 <= 37 && 36 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 36)) || (((((Id_MCDC_89__Id_MCDC_96 <= 37 && Id_MCDC_93 <= 38) && 37 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 23 && Id_MCDC_93 <= 24) && 23 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((4 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 4) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && Id_MCDC_93 <= 5) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((((41 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 41) && 41 <= Id_MCDC_93) && Id_MCDC_93 <= 4294967296 * (Id_MCDC_93 / 4294967296) + 41) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 / 4294967296 <= 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 25 && Id_MCDC_93 <= 26) && 25 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 11 && Id_MCDC_93 <= 12) && 11 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 28 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 28 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 29)) || (((((Id_MCDC_89__Id_MCDC_96 <= 16 && Id_MCDC_93 <= 17) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 16 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((31 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 32) && Id_MCDC_89__Id_MCDC_96 <= 31) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 27 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 27 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 28) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 1 && Id_MCDC_89__Id_MCDC_96 == 0) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 24 && Id_MCDC_93 <= 25) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 24 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_93 <= 13 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 12 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 12) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((39 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 39) && Id_MCDC_93 <= 40) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((38 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 39) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && Id_MCDC_89__Id_MCDC_96 <= 38) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((21 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 21) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 22) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_93 <= 27 && 26 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 26) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_93 <= 11 && Id_MCDC_89__Id_MCDC_96 <= 10) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 10 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89____CPAchecker_TMP_1 == 1 && 0 < Id_MCDC_93 / 4294967296 + 1) && 29 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 29) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 30)) || (((((Id_MCDC_93 <= 14 && Id_MCDC_89__Id_MCDC_96 <= 13) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 13 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((40 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 41) && Id_MCDC_89__Id_MCDC_96 <= 40) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 19 && 19 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 20) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 1 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && Id_MCDC_93 <= 2) && 0 < Id_MCDC_93 / 4294967296 + 1) && 1 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_93 <= 31 && 30 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 30)) || (((((Id_MCDC_89__Id_MCDC_96 <= 22 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 23) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 22 <= Id_MCDC_89__Id_MCDC_96)) || (((((Id_MCDC_89__Id_MCDC_96 <= 33 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 34) && 33 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((8 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 9) && Id_MCDC_89__Id_MCDC_96 <= 8) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 6 && 6 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 7) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((9 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= 9) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 10) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_93 <= 35 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 34 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 34)) || (((((Id_MCDC_93 <= 15 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && Id_MCDC_89__Id_MCDC_96 <= 14) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 14 <= Id_MCDC_89__Id_MCDC_96)) || (((((5 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 6) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 5)) || (((((Id_MCDC_89__Id_MCDC_96 <= 20 && 20 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 21)) || (((((Id_MCDC_93 <= 3 && 2 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 2) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 18 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && Id_MCDC_93 <= 19) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 18 <= Id_MCDC_89__Id_MCDC_96)) || (((((Id_MCDC_93 <= 4 && Id_MCDC_89__Id_MCDC_96 <= 3) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 3 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || !(\old(Id_MCDC_93) == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 7 && Id_MCDC_93 <= 8) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 7 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((Id_MCDC_89__Id_MCDC_96 <= 15 && Id_MCDC_93 <= 16) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && 15 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((((17 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 18) && Id_MCDC_89__Id_MCDC_96 <= 17) && Id_MCDC_89____CPAchecker_TMP_1 == 1) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) - ProcedureContractResult [Line: 133]: Procedure Contract for main Derived contract for procedure main: 1 RESULT: Ultimate proved your program to be correct! Received shutdown request...