/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:10:09,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:10:09,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:10:09,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:10:09,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:10:09,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:10:09,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:10:09,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:10:09,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:10:09,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:10:09,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:10:09,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:10:09,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:10:09,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:10:09,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:10:09,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:10:09,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:10:09,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:10:09,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:10:09,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:10:09,639 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:10:09,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:10:09,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:10:09,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:10:09,672 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:10:09,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:10:09,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:10:09,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:10:09,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:10:09,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:10:09,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:10:09,676 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:10:09,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:10:09,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:10:09,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:10:09,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:10:09,677 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:10:09,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:10:09,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:10:09,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:10:09,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:10:09,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:10:09,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:10:09,680 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:10:09,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:10:10,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:10:10,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:10:10,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:10:10,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:10:10,188 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:10:10,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2021-02-22 02:10:10,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01a995fe/8758d258f7884e7ca2bafb99b1e1fe39/FLAG4503f5ffe [2021-02-22 02:10:11,033 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:10:11,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2021-02-22 02:10:11,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01a995fe/8758d258f7884e7ca2bafb99b1e1fe39/FLAG4503f5ffe [2021-02-22 02:10:11,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01a995fe/8758d258f7884e7ca2bafb99b1e1fe39 [2021-02-22 02:10:11,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:10:11,292 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:10:11,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:10:11,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:10:11,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:10:11,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:10:11" (1/1) ... [2021-02-22 02:10:11,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dcb470d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:11, skipping insertion in model container [2021-02-22 02:10:11,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:10:11" (1/1) ... [2021-02-22 02:10:11,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:10:11,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:10:11,733 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c[17811,17824] [2021-02-22 02:10:11,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:10:11,802 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:10:11,922 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c[17811,17824] [2021-02-22 02:10:11,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:10:12,004 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:10:12,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12 WrapperNode [2021-02-22 02:10:12,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:10:12,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:10:12,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:10:12,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:10:12,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (1/1) ... [2021-02-22 02:10:12,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (1/1) ... [2021-02-22 02:10:12,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (1/1) ... [2021-02-22 02:10:12,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (1/1) ... [2021-02-22 02:10:12,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (1/1) ... [2021-02-22 02:10:12,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (1/1) ... [2021-02-22 02:10:12,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (1/1) ... [2021-02-22 02:10:12,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:10:12,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:10:12,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:10:12,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:10:12,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (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 [2021-02-22 02:10:12,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:10:12,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:10:12,259 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:10:12,259 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:10:12,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:10:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:10:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:10:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:10:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:10:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:10:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:10:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:10:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:10:12,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:10:12,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:10:12,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:10:12,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:10:12,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:10:12,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:10:13,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:10:13,847 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:10:13,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:10:13 BoogieIcfgContainer [2021-02-22 02:10:13,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:10:13,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:10:13,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:10:13,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:10:13,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:10:11" (1/3) ... [2021-02-22 02:10:13,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43dc483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:10:13, skipping insertion in model container [2021-02-22 02:10:13,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:12" (2/3) ... [2021-02-22 02:10:13,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43dc483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:10:13, skipping insertion in model container [2021-02-22 02:10:13,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:10:13" (3/3) ... [2021-02-22 02:10:13,865 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label32.c [2021-02-22 02:10:13,873 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:10:13,879 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:10:13,900 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:10:13,926 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:10:13,927 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:10:13,927 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:10:13,927 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:10:13,927 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:10:13,928 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:10:13,928 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:10:13,928 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:10:13,958 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-22 02:10:13,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-02-22 02:10:13,985 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:10:13,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:10:13,987 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:10:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:10:13,994 INFO L82 PathProgramCache]: Analyzing trace with hash -71069369, now seen corresponding path program 1 times [2021-02-22 02:10:14,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:10:14,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34215857] [2021-02-22 02:10:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:10:14,094 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:10:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:14,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:14,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:14,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:14,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:14,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:14,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:14,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:14,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:10:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:14,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:14,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:14,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:14,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:10:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:10:14,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34215857] [2021-02-22 02:10:14,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:10:14,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:10:14,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693753242] [2021-02-22 02:10:14,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:10:14,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:10:14,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:10:14,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:10:14,736 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-22 02:10:17,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:10:17,552 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-22 02:10:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:10:17,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2021-02-22 02:10:17,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:10:17,578 INFO L225 Difference]: With dead ends: 1215 [2021-02-22 02:10:17,578 INFO L226 Difference]: Without dead ends: 636 [2021-02-22 02:10:17,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:10:17,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-22 02:10:17,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-22 02:10:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-22 02:10:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-22 02:10:17,833 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 143 [2021-02-22 02:10:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:10:17,834 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-22 02:10:17,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:10:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-22 02:10:17,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-22 02:10:17,842 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:10:17,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:10:17,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:10:17,843 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:10:17,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:10:17,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1072071505, now seen corresponding path program 1 times [2021-02-22 02:10:17,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:10:17,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606666615] [2021-02-22 02:10:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:10:17,915 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:10:17,943 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:10:17,953 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:10:17,960 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:10:17,998 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:18,012 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:18,020 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-22 02:10:18,026 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:18,031 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:18,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:18,042 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-22 02:10:18,068 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:10:18,075 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:10:18,079 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:10:18,086 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:10:18,120 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:18,124 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:18,130 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-22 02:10:18,133 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:18,135 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:18,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:18,146 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-22 02:10:18,147 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:10:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:18,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:18,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:18,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:10:18,403 WARN L141 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size [2021-02-22 02:10:18,404 WARN L147 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size 11 [2021-02-22 02:10:18,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:10:18,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:18,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:10:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:18,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:18,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:10:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:10:18,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 02:10:18,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:18,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:10:18,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:10:18,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:10:18,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:10:18,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:10:18,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:10:18,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:10:18,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:10:18,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-02-22 02:10:18,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:18,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 02:10:19,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:19,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-22 02:10:19,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:19,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-02-22 02:10:19,200 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-02-22 02:10:19,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:19,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-02-22 02:10:19,365 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-22 02:10:19,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:19,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-02-22 02:10:19,564 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-22 02:10:19,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:19,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-02-22 02:10:19,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:19,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-22 02:10:19,884 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-02-22 02:10:19,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:19,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-02-22 02:10:20,183 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-02-22 02:10:20,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:20,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-22 02:10:20,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:20,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-02-22 02:10:20,540 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-02-22 02:10:20,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:20,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-02-22 02:10:20,965 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-02-22 02:10:20,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:20,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-02-22 02:10:21,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:21,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-22 02:10:21,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:21,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-02-22 02:10:21,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:21,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-02-22 02:10:21,648 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-22 02:10:21,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:21,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-22 02:10:21,731 WARN L141 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size [2021-02-22 02:10:21,733 WARN L147 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size 42 [2021-02-22 02:10:21,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:21,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:21,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:21,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:21,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:21,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:21,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:21,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:10:21,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:22,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:22,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:10:22,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:22,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:10:22,133 WARN L141 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size [2021-02-22 02:10:22,135 WARN L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-02-22 02:10:22,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:22,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:22,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:22,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:10:22,247 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-22 02:10:22,248 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-22 02:10:22,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:22,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:22,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:22,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:10:22,372 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-22 02:10:22,375 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-22 02:10:22,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606666615] [2021-02-22 02:10:22,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:10:22,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-22 02:10:22,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209925129] [2021-02-22 02:10:22,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-22 02:10:22,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:10:22,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-22 02:10:22,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2021-02-22 02:10:22,379 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 30 states. [2021-02-22 02:10:22,862 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:10:23,093 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-22 02:10:23,340 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:10:23,570 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:10:23,816 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:10:24,078 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-22 02:10:24,441 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2021-02-22 02:10:24,868 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-22 02:10:25,044 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-22 02:10:25,217 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-22 02:10:25,632 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-22 02:10:26,298 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2021-02-22 02:10:26,882 WARN L202 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2021-02-22 02:10:27,273 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-22 02:10:27,865 WARN L202 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2021-02-22 02:10:28,563 WARN L202 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-22 02:10:29,004 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-02-22 02:10:29,839 WARN L202 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-22 02:10:30,971 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:10:31,164 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:10:31,423 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-22 02:10:31,725 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-22 02:10:31,860 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-22 02:10:32,141 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-22 02:10:32,599 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-22 02:10:32,987 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-22 02:10:33,481 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-22 02:10:33,892 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-22 02:10:34,551 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:10:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:10:40,413 INFO L93 Difference]: Finished difference Result 1721 states and 2175 transitions. [2021-02-22 02:10:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-22 02:10:40,414 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 177 [2021-02-22 02:10:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:10:40,425 INFO L225 Difference]: With dead ends: 1721 [2021-02-22 02:10:40,426 INFO L226 Difference]: Without dead ends: 1128 [2021-02-22 02:10:40,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1440 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=976, Invalid=3716, Unknown=0, NotChecked=0, Total=4692 [2021-02-22 02:10:40,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2021-02-22 02:10:40,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1053. [2021-02-22 02:10:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2021-02-22 02:10:40,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1327 transitions. [2021-02-22 02:10:40,700 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1327 transitions. Word has length 177 [2021-02-22 02:10:40,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:10:40,701 INFO L480 AbstractCegarLoop]: Abstraction has 1053 states and 1327 transitions. [2021-02-22 02:10:40,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-22 02:10:40,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1327 transitions. [2021-02-22 02:10:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-02-22 02:10:40,707 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:10:40,707 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:10:40,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:10:40,708 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:10:40,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:10:40,708 INFO L82 PathProgramCache]: Analyzing trace with hash 931465068, now seen corresponding path program 1 times [2021-02-22 02:10:40,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:10:40,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319868621] [2021-02-22 02:10:40,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:10:40,735 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:40,740 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:40,742 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:40,747 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:40,774 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:40,777 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:40,782 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:10:40,784 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:40,786 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:40,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:40,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:40,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:40,794 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:10:40,797 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:40,804 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:40,808 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:40,813 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:40,842 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:40,844 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:40,849 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:10:40,850 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:40,853 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:40,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:40,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:40,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:40,860 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:10:40,864 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:40,869 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:40,871 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:40,878 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:40,908 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:40,911 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:40,914 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:10:40,916 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:40,918 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:40,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:40,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:40,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:40,924 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:10:40,928 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:40,933 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:40,936 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:40,942 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:40,971 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:40,973 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:40,976 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:10:40,977 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:40,979 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:40,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:40,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:40,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:40,984 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:10:40,984 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:10:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:41,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:41,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:41,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:10:41,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:10:41,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:10:41,139 WARN L141 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size [2021-02-22 02:10:41,140 WARN L147 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size 12 [2021-02-22 02:10:41,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:10:41,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:41,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:10:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:41,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:41,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:10:41,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:10:41,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:10:41,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:41,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:10:41,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:10:41,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:41,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:10:41,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:10:41,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:10:41,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:10:41,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:10:41,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:41,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-22 02:10:41,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-22 02:10:41,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-22 02:10:41,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-22 02:10:41,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-22 02:10:41,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-22 02:10:41,914 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-02-22 02:10:41,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:41,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-02-22 02:10:42,107 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-22 02:10:42,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:42,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-02-22 02:10:42,340 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-22 02:10:42,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:42,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-22 02:10:42,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:42,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-02-22 02:10:42,647 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2021-02-22 02:10:42,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:42,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-02-22 02:10:42,949 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-02-22 02:10:42,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:42,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-02-22 02:10:43,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:43,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-22 02:10:43,360 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-02-22 02:10:43,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:43,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-02-22 02:10:43,746 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-02-22 02:10:43,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:43,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-02-22 02:10:43,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:43,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-02-22 02:10:43,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:43,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-02-22 02:10:43,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:43,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-22 02:10:44,396 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-22 02:10:44,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:44,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-02-22 02:10:44,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:44,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-22 02:10:44,969 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2021-02-22 02:10:44,976 WARN L141 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size [2021-02-22 02:10:44,978 WARN L147 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size 58 [2021-02-22 02:10:45,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:10:45,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:10:45,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:10:45,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:10:45,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:10:45,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:10:45,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:10:45,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:10:45,551 WARN L141 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size [2021-02-22 02:10:45,552 WARN L147 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size 25 [2021-02-22 02:10:45,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:10:45,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:45,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:10:45,704 WARN L141 QuantifierPusher]: treesize reduction 33, result has 2.9 percent of original size [2021-02-22 02:10:45,705 WARN L147 QuantifierPusher]: treesize reduction 33, result has 2.9 percent of original size 1 [2021-02-22 02:10:45,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319868621] [2021-02-22 02:10:45,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:10:45,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-22 02:10:45,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894830476] [2021-02-22 02:10:45,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-22 02:10:45,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:10:45,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-22 02:10:45,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2021-02-22 02:10:45,709 INFO L87 Difference]: Start difference. First operand 1053 states and 1327 transitions. Second operand 31 states. [2021-02-22 02:10:46,148 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:10:46,394 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-22 02:10:46,642 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:10:46,901 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:10:47,155 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:10:47,421 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-22 02:10:47,751 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2021-02-22 02:10:48,240 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-22 02:10:48,407 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-22 02:10:48,603 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-22 02:10:49,039 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-22 02:10:49,637 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 134 [2021-02-22 02:10:50,205 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2021-02-22 02:10:50,598 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-02-22 02:10:51,196 WARN L202 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-02-22 02:10:51,901 WARN L202 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2021-02-22 02:10:52,391 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-02-22 02:10:53,235 WARN L202 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-22 02:10:54,074 WARN L202 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-22 02:10:54,282 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:10:55,231 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:10:55,467 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:10:55,740 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-22 02:10:56,030 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-22 02:10:56,345 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-22 02:10:56,774 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-02-22 02:10:57,201 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-22 02:10:57,381 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:10:57,745 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-02-22 02:10:58,158 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-02-22 02:10:58,758 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:10:59,336 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:11:03,890 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 101 [2021-02-22 02:11:05,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:11:05,708 INFO L93 Difference]: Finished difference Result 3029 states and 3946 transitions. [2021-02-22 02:11:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-22 02:11:05,709 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 178 [2021-02-22 02:11:05,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:11:05,726 INFO L225 Difference]: With dead ends: 3029 [2021-02-22 02:11:05,727 INFO L226 Difference]: Without dead ends: 2006 [2021-02-22 02:11:05,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1554 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=1069, Invalid=4187, Unknown=0, NotChecked=0, Total=5256 [2021-02-22 02:11:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2021-02-22 02:11:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1776. [2021-02-22 02:11:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1776 states. [2021-02-22 02:11:06,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2261 transitions. [2021-02-22 02:11:06,265 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2261 transitions. Word has length 178 [2021-02-22 02:11:06,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:11:06,266 INFO L480 AbstractCegarLoop]: Abstraction has 1776 states and 2261 transitions. [2021-02-22 02:11:06,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-22 02:11:06,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2261 transitions. [2021-02-22 02:11:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-02-22 02:11:06,275 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:11:06,276 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:11:06,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:11:06,276 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:11:06,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:11:06,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1989675646, now seen corresponding path program 1 times [2021-02-22 02:11:06,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:11:06,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785979149] [2021-02-22 02:11:06,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:11:06,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:06,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:06,333 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:11:06,336 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:11:06,338 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:11:06,339 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:11:06,341 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:06,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:11:06,348 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:11:06,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:06,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:06,394 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:11:06,397 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:11:06,399 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:11:06,401 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:11:06,403 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:06,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:11:06,408 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:11:06,408 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:11:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:11:06,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:11:06,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:11:06,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:11:06,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:11:06,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:11:06,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:11:06,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:11:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:11:06,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:11:06,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:11:06,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:11:06,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:11:06,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:06,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:11:06,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:11:06,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:11:06,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:11:06,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:06,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:11:06,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:11:06,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-22 02:11:06,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:06,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-22 02:11:07,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:07,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-22 02:11:07,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:07,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-22 02:11:07,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:07,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-22 02:11:07,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:07,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-02-22 02:11:07,444 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-02-22 02:11:07,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:07,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-02-22 02:11:07,643 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-02-22 02:11:07,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:07,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-02-22 02:11:07,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:07,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-02-22 02:11:07,841 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-22 02:11:07,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:07,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-02-22 02:11:08,138 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-02-22 02:11:08,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:08,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-22 02:11:08,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:08,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-22 02:11:08,567 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-02-22 02:11:08,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:08,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-02-22 02:11:08,988 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-02-22 02:11:08,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:08,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-02-22 02:11:09,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:09,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-22 02:11:09,504 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2021-02-22 02:11:09,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:09,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-02-22 02:11:09,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:09,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-02-22 02:11:10,065 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2021-02-22 02:11:10,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:10,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-02-22 02:11:10,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:10,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-02-22 02:11:10,683 WARN L202 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2021-02-22 02:11:10,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:10,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-22 02:11:11,254 WARN L202 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-22 02:11:11,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:11,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-02-22 02:11:11,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:11,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-02-22 02:11:11,928 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-22 02:11:11,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:11,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-02-22 02:11:12,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 346 [2021-02-22 02:11:12,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-02-22 02:11:12,734 WARN L202 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-22 02:11:12,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-22 02:11:13,358 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2021-02-22 02:11:13,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-02-22 02:11:13,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-22 02:11:13,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-22 02:11:13,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-22 02:11:14,348 WARN L202 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-02-22 02:11:14,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:14,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-02-22 02:11:15,041 WARN L202 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2021-02-22 02:11:15,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:15,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-02-22 02:11:15,775 WARN L202 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2021-02-22 02:11:15,780 WARN L141 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size [2021-02-22 02:11:15,781 WARN L147 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size 42 [2021-02-22 02:11:15,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:15,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:15,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:15,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:16,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:16,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:16,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:16,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:16,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:16,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:11:16,231 WARN L141 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size [2021-02-22 02:11:16,232 WARN L147 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size 26 [2021-02-22 02:11:16,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:16,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:16,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:16,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:16,415 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-22 02:11:16,416 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-22 02:11:16,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785979149] [2021-02-22 02:11:16,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:11:16,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-02-22 02:11:16,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535819123] [2021-02-22 02:11:16,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-22 02:11:16,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:11:16,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-22 02:11:16,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2021-02-22 02:11:16,420 INFO L87 Difference]: Start difference. First operand 1776 states and 2261 transitions. Second operand 36 states. [2021-02-22 02:11:16,885 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-22 02:11:17,133 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2021-02-22 02:11:17,323 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-22 02:11:17,581 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-22 02:11:17,833 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-22 02:11:18,107 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2021-02-22 02:11:18,469 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2021-02-22 02:11:18,939 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2021-02-22 02:11:19,099 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-02-22 02:11:19,290 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-02-22 02:11:19,718 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-02-22 02:11:20,379 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2021-02-22 02:11:21,009 WARN L202 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 135 [2021-02-22 02:11:21,387 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-22 02:11:21,976 WARN L202 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2021-02-22 02:11:22,695 WARN L202 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-22 02:11:23,374 WARN L202 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-02-22 02:11:24,279 WARN L202 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-22 02:11:25,133 WARN L202 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-22 02:11:25,987 WARN L202 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-22 02:11:26,974 WARN L202 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-22 02:11:27,885 WARN L202 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 146 [2021-02-22 02:11:28,871 WARN L202 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2021-02-22 02:11:29,858 WARN L202 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 148 [2021-02-22 02:11:30,878 WARN L202 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 149 [2021-02-22 02:11:31,095 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:11:32,256 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:11:32,472 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-22 02:11:32,715 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-22 02:11:32,958 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-22 02:11:33,269 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-22 02:11:33,723 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-22 02:11:34,182 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-22 02:11:34,789 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-22 02:11:35,249 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-22 02:11:35,832 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 101 [2021-02-22 02:11:36,259 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-22 02:11:36,945 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:11:37,665 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:11:38,253 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:11:39,024 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:11:39,809 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:11:40,376 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:11:41,257 WARN L202 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:11:41,903 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:11:42,541 WARN L202 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:11:46,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:11:46,633 INFO L93 Difference]: Finished difference Result 4540 states and 5979 transitions. [2021-02-22 02:11:46,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-02-22 02:11:46,634 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 188 [2021-02-22 02:11:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:11:46,656 INFO L225 Difference]: With dead ends: 4540 [2021-02-22 02:11:46,657 INFO L226 Difference]: Without dead ends: 2794 [2021-02-22 02:11:46,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 11 SyntacticMatches, 11 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2437 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=1827, Invalid=6363, Unknown=0, NotChecked=0, Total=8190 [2021-02-22 02:11:46,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2021-02-22 02:11:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2523. [2021-02-22 02:11:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2523 states. [2021-02-22 02:11:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3296 transitions. [2021-02-22 02:11:47,298 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3296 transitions. Word has length 188 [2021-02-22 02:11:47,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:11:47,299 INFO L480 AbstractCegarLoop]: Abstraction has 2523 states and 3296 transitions. [2021-02-22 02:11:47,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2021-02-22 02:11:47,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3296 transitions. [2021-02-22 02:11:47,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-22 02:11:47,312 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:11:47,313 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:11:47,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-22 02:11:47,313 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:11:47,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:11:47,314 INFO L82 PathProgramCache]: Analyzing trace with hash -984837808, now seen corresponding path program 1 times [2021-02-22 02:11:47,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:11:47,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536691562] [2021-02-22 02:11:47,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:11:47,357 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2021-02-22 02:12:45,291 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 1796992 conjuctions. This might take some time...