/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:51:44,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:51:44,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:51:44,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:51:44,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:51:44,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:51:44,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:51:44,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:51:44,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:51:44,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:51:44,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:51:44,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:51:44,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:51:44,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:51:44,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:51:44,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:51:44,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:51:44,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:51:44,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:51:44,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:51:44,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:51:44,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:51:44,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:51:44,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:51:44,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:51:44,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:51:44,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:51:44,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:51:44,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:51:44,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:51:44,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:51:44,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:51:44,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:51:44,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:51:44,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:51:44,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:51:44,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:51:44,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:51:44,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:51:44,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:51:44,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:51:44,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 08:51:44,909 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:51:44,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:51:44,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:51:44,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:51:44,911 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:51:44,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:51:44,912 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:51:44,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:51:44,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:51:44,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:51:44,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:51:44,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:51:44,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:51:44,913 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:51:44,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:51:44,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:51:44,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:51:44,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:51:44,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:51:44,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:51:44,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:51:44,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:51:44,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:51:44,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:51:44,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:51:44,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:51:44,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:51:44,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:51:44,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:51:44,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:51:45,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:51:45,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:51:45,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:51:45,259 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:51:45,259 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:51:45,260 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-10-14 08:51:45,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1421e1acb/9e713babfeca4139b6e6cb5c26c060d6/FLAGdc98dbe92 [2020-10-14 08:51:46,117 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:51:46,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-10-14 08:51:46,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1421e1acb/9e713babfeca4139b6e6cb5c26c060d6/FLAGdc98dbe92 [2020-10-14 08:51:46,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1421e1acb/9e713babfeca4139b6e6cb5c26c060d6 [2020-10-14 08:51:46,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:51:46,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:51:46,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:51:46,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:51:46,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:51:46,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:51:46" (1/1) ... [2020-10-14 08:51:46,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c03ede6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:46, skipping insertion in model container [2020-10-14 08:51:46,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:51:46" (1/1) ... [2020-10-14 08:51:46,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:51:46,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:51:48,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:51:48,815 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:51:49,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:51:49,847 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:51:49,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49 WrapperNode [2020-10-14 08:51:49,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:51:49,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:51:49,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:51:49,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:51:49,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (1/1) ... [2020-10-14 08:51:49,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (1/1) ... [2020-10-14 08:51:49,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (1/1) ... [2020-10-14 08:51:49,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (1/1) ... [2020-10-14 08:51:50,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (1/1) ... [2020-10-14 08:51:50,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (1/1) ... [2020-10-14 08:51:50,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (1/1) ... [2020-10-14 08:51:50,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:51:50,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:51:50,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:51:50,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:51:50,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-14 08:51:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:51:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:51:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:51:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:51:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:51:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:51:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:51:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:51:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:51:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:51:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:51:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:51:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:51:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:51:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:51:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:51:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 08:51:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-14 08:51:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:51:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:51:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:51:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:51:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:51:56,002 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:51:56,002 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:51:56,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:51:56 BoogieIcfgContainer [2020-10-14 08:51:56,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:51:56,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:51:56,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:51:56,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:51:56,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:51:46" (1/3) ... [2020-10-14 08:51:56,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b688f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:51:56, skipping insertion in model container [2020-10-14 08:51:56,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:51:49" (2/3) ... [2020-10-14 08:51:56,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b688f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:51:56, skipping insertion in model container [2020-10-14 08:51:56,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:51:56" (3/3) ... [2020-10-14 08:51:56,025 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-10-14 08:51:56,035 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:51:56,046 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-14 08:51:56,059 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-14 08:51:56,091 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:51:56,091 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:51:56,091 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:51:56,092 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:51:56,092 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:51:56,092 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:51:56,092 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:51:56,092 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:51:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states. [2020-10-14 08:51:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:51:56,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:51:56,171 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] [2020-10-14 08:51:56,172 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:51:56,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:51:56,178 INFO L82 PathProgramCache]: Analyzing trace with hash -295046239, now seen corresponding path program 1 times [2020-10-14 08:51:56,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:51:56,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159821381] [2020-10-14 08:51:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:51:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:56,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:57,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:57,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:57,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:58,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:00,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:00,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:01,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:01,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:52:01,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:52:01,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:52:01,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:01,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:52:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:52:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 08:52:01,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:52:06,278 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-14 08:52:06,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:52:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:06,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:06,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:52:06,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:52:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 08:52:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:06,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:52:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:52:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:52:06,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:52:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:52:06,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159821381] [2020-10-14 08:52:06,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:52:06,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:52:06,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757220134] [2020-10-14 08:52:06,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:52:06,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:52:06,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:52:06,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:52:06,493 INFO L87 Difference]: Start difference. First operand 2546 states. Second operand 7 states. [2020-10-14 08:52:10,820 WARN L193 SmtUtils]: Spent 4.14 s on a formula simplification that was a NOOP. DAG size: 1058 [2020-10-14 08:52:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:52:50,470 INFO L93 Difference]: Finished difference Result 5524 states and 9135 transitions. [2020-10-14 08:52:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:52:50,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-14 08:52:50,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:52:50,523 INFO L225 Difference]: With dead ends: 5524 [2020-10-14 08:52:50,524 INFO L226 Difference]: Without dead ends: 4872 [2020-10-14 08:52:50,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:52:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4872 states. [2020-10-14 08:52:50,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4872 to 3252. [2020-10-14 08:52:50,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3252 states. [2020-10-14 08:52:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4226 transitions. [2020-10-14 08:52:50,761 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4226 transitions. Word has length 91 [2020-10-14 08:52:50,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:52:50,762 INFO L479 AbstractCegarLoop]: Abstraction has 3252 states and 4226 transitions. [2020-10-14 08:52:50,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:52:50,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4226 transitions. [2020-10-14 08:52:50,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:52:50,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:52:50,773 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] [2020-10-14 08:52:50,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:52:50,774 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:52:50,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:52:50,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1243391824, now seen corresponding path program 1 times [2020-10-14 08:52:50,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:52:50,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896280814] [2020-10-14 08:52:50,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:52:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:50,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:51,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:51,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:51,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:51,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:54,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:54,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:54,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:56,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:56,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:52:56,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:52:56,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5151 [2020-10-14 08:52:56,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:56,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:56,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:52:56,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:52:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 08:52:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 08:53:00,368 WARN L193 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-14 08:53:00,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:53:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:00,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:00,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:00,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:53:00,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:53:00,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 08:53:00,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:00,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:53:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:53:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:53:00,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:53:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:53:00,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896280814] [2020-10-14 08:53:00,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:53:00,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:53:00,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605985223] [2020-10-14 08:53:00,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:53:00,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:53:00,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:53:00,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:53:00,632 INFO L87 Difference]: Start difference. First operand 3252 states and 4226 transitions. Second operand 6 states. [2020-10-14 08:53:04,849 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 1063 [2020-10-14 08:53:25,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:53:25,723 INFO L93 Difference]: Finished difference Result 5138 states and 6699 transitions. [2020-10-14 08:53:25,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:53:25,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-10-14 08:53:25,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:53:25,743 INFO L225 Difference]: With dead ends: 5138 [2020-10-14 08:53:25,744 INFO L226 Difference]: Without dead ends: 3878 [2020-10-14 08:53:25,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:53:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2020-10-14 08:53:25,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 3579. [2020-10-14 08:53:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3579 states. [2020-10-14 08:53:25,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 4760 transitions. [2020-10-14 08:53:25,895 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 4760 transitions. Word has length 91 [2020-10-14 08:53:25,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:53:25,897 INFO L479 AbstractCegarLoop]: Abstraction has 3579 states and 4760 transitions. [2020-10-14 08:53:25,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:53:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 4760 transitions. [2020-10-14 08:53:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:53:25,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:53:25,908 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] [2020-10-14 08:53:25,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:53:25,908 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:53:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:53:25,909 INFO L82 PathProgramCache]: Analyzing trace with hash 12990972, now seen corresponding path program 1 times [2020-10-14 08:53:25,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:53:25,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90832800] [2020-10-14 08:53:25,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:53:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:26,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:26,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:26,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:26,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:26,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:28,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:29,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:31,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:53:31,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:53:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:53:31,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:31,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:53:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:53:31,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:53:31,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:35,129 WARN L193 SmtUtils]: Spent 3.92 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-14 08:53:35,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:53:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:35,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:35,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:35,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:53:35,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:53:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 08:53:35,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:35,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:53:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:53:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:53:35,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:53:35,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:53:35,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90832800] [2020-10-14 08:53:35,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:53:35,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:53:35,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260291864] [2020-10-14 08:53:35,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:53:35,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:53:35,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:53:35,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:53:35,355 INFO L87 Difference]: Start difference. First operand 3579 states and 4760 transitions. Second operand 6 states. [2020-10-14 08:53:39,480 WARN L193 SmtUtils]: Spent 3.98 s on a formula simplification that was a NOOP. DAG size: 1063 [2020-10-14 08:53:57,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:53:57,376 INFO L93 Difference]: Finished difference Result 4181 states and 5505 transitions. [2020-10-14 08:53:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:53:57,377 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-10-14 08:53:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:53:57,390 INFO L225 Difference]: With dead ends: 4181 [2020-10-14 08:53:57,390 INFO L226 Difference]: Without dead ends: 2974 [2020-10-14 08:53:57,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:53:57,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2020-10-14 08:53:57,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2887. [2020-10-14 08:53:57,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2887 states. [2020-10-14 08:53:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 3821 transitions. [2020-10-14 08:53:57,518 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 3821 transitions. Word has length 91 [2020-10-14 08:53:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:53:57,518 INFO L479 AbstractCegarLoop]: Abstraction has 2887 states and 3821 transitions. [2020-10-14 08:53:57,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:53:57,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 3821 transitions. [2020-10-14 08:53:57,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:53:57,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:53:57,525 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] [2020-10-14 08:53:57,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:53:57,525 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:53:57,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:53:57,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1890971344, now seen corresponding path program 1 times [2020-10-14 08:53:57,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:53:57,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697326911] [2020-10-14 08:53:57,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:53:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:57,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:57,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:57,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:58,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:58,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:59,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:01,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:01,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:02,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:02,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:54:02,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:54:02,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:54:02,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:02,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:54:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:54:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:54:02,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:54:07,367 WARN L193 SmtUtils]: Spent 4.54 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-14 08:54:07,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:54:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:07,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:07,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:07,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:54:07,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:54:07,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 08:54:07,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:07,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:07,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:54:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:54:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:54:07,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:54:07,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:54:07,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697326911] [2020-10-14 08:54:07,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:54:07,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:54:07,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350645365] [2020-10-14 08:54:07,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:54:07,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:54:07,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:54:07,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:54:07,581 INFO L87 Difference]: Start difference. First operand 2887 states and 3821 transitions. Second operand 6 states. [2020-10-14 08:54:11,712 WARN L193 SmtUtils]: Spent 4.00 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-14 08:54:24,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:54:24,280 INFO L93 Difference]: Finished difference Result 4416 states and 5867 transitions. [2020-10-14 08:54:24,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:54:24,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-10-14 08:54:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:54:24,293 INFO L225 Difference]: With dead ends: 4416 [2020-10-14 08:54:24,293 INFO L226 Difference]: Without dead ends: 2942 [2020-10-14 08:54:24,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:54:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2020-10-14 08:54:24,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2818. [2020-10-14 08:54:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2818 states. [2020-10-14 08:54:24,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3807 transitions. [2020-10-14 08:54:24,425 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3807 transitions. Word has length 91 [2020-10-14 08:54:24,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:54:24,426 INFO L479 AbstractCegarLoop]: Abstraction has 2818 states and 3807 transitions. [2020-10-14 08:54:24,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:54:24,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3807 transitions. [2020-10-14 08:54:24,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:54:24,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:24,430 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] [2020-10-14 08:54:24,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:54:24,431 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:24,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:24,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1540213121, now seen corresponding path program 1 times [2020-10-14 08:54:24,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:24,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128483149] [2020-10-14 08:54:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:24,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:24,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:24,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:24,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:25,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:25,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:25,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:27,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:29,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:29,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:54:29,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:54:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 08:54:29,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:29,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:54:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:54:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:54:29,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:54:33,813 WARN L193 SmtUtils]: Spent 4.01 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-14 08:54:33,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:54:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:33,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:33,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:33,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:54:33,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:54:33,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:54:33,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:33,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:54:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:54:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:54:33,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:54:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:54:33,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128483149] [2020-10-14 08:54:33,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:54:33,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:54:33,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092429910] [2020-10-14 08:54:33,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:54:33,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:54:33,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:54:33,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:54:33,919 INFO L87 Difference]: Start difference. First operand 2818 states and 3807 transitions. Second operand 7 states. [2020-10-14 08:54:38,106 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 1064 [2020-10-14 08:54:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:54:52,539 INFO L93 Difference]: Finished difference Result 4792 states and 6708 transitions. [2020-10-14 08:54:52,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:54:52,539 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-10-14 08:54:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:54:52,558 INFO L225 Difference]: With dead ends: 4792 [2020-10-14 08:54:52,559 INFO L226 Difference]: Without dead ends: 4150 [2020-10-14 08:54:52,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:54:52,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4150 states. [2020-10-14 08:54:52,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4150 to 2807. [2020-10-14 08:54:52,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2807 states. [2020-10-14 08:54:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 3792 transitions. [2020-10-14 08:54:52,713 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 3792 transitions. Word has length 93 [2020-10-14 08:54:52,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:54:52,716 INFO L479 AbstractCegarLoop]: Abstraction has 2807 states and 3792 transitions. [2020-10-14 08:54:52,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:54:52,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 3792 transitions. [2020-10-14 08:54:52,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:54:52,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:52,732 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] [2020-10-14 08:54:52,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:54:52,733 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:52,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:52,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1063764217, now seen corresponding path program 1 times [2020-10-14 08:54:52,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:52,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384038248] [2020-10-14 08:54:52,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:52,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:52,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:53,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:53,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:53,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:56,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:56,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:56,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:56,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:57,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:57,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:54:57,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:54:57,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 08:54:57,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:57,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:57,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:54:57,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:54:57,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:54:57,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:01,944 WARN L193 SmtUtils]: Spent 3.98 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-14 08:55:01,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:01,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:02,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:02,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:02,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 08:55:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:02,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:55:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:55:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:02,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:55:02,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384038248] [2020-10-14 08:55:02,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:02,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:55:02,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089951326] [2020-10-14 08:55:02,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:55:02,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:02,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:55:02,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:55:02,111 INFO L87 Difference]: Start difference. First operand 2807 states and 3792 transitions. Second operand 6 states. [2020-10-14 08:55:06,278 WARN L193 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-14 08:55:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:14,772 INFO L93 Difference]: Finished difference Result 4627 states and 6326 transitions. [2020-10-14 08:55:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:55:14,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-14 08:55:14,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:14,783 INFO L225 Difference]: With dead ends: 4627 [2020-10-14 08:55:14,783 INFO L226 Difference]: Without dead ends: 3191 [2020-10-14 08:55:14,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:55:14,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2020-10-14 08:55:14,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3103. [2020-10-14 08:55:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3103 states. [2020-10-14 08:55:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4279 transitions. [2020-10-14 08:55:14,953 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4279 transitions. Word has length 93 [2020-10-14 08:55:14,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:14,953 INFO L479 AbstractCegarLoop]: Abstraction has 3103 states and 4279 transitions. [2020-10-14 08:55:14,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:55:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4279 transitions. [2020-10-14 08:55:14,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 08:55:14,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:14,958 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] [2020-10-14 08:55:14,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:55:14,959 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:14,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:14,959 INFO L82 PathProgramCache]: Analyzing trace with hash -724320286, now seen corresponding path program 1 times [2020-10-14 08:55:14,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:14,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562150743] [2020-10-14 08:55:14,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:15,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:15,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:16,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:16,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:17,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:17,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:19,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:20,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:20,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 08:55:20,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:55:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 08:55:20,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:20,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:55:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:55:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:55:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:24,256 WARN L193 SmtUtils]: Spent 4.01 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-14 08:55:24,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:24,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:24,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:24,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:24,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:24,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 08:55:24,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:24,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:55:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:55:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:55:24,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562150743] [2020-10-14 08:55:24,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:24,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:55:24,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139963794] [2020-10-14 08:55:24,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:55:24,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:24,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:55:24,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:55:24,450 INFO L87 Difference]: Start difference. First operand 3103 states and 4279 transitions. Second operand 6 states. [2020-10-14 08:55:28,604 WARN L193 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 1063