/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=NARROWEST --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_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:55:04,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:55:04,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:55:04,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:55:04,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:55:04,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:55:04,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:55:04,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:55:04,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:55:04,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:55:04,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:55:04,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:55:04,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:55:04,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:55:04,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:55:04,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:55:04,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:55:04,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:55:04,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:55:04,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:55:04,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:55:04,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:55:04,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:55:04,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:55:04,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:55:04,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:55:04,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:55:04,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:55:04,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:55:04,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:55:04,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:55:04,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:55:04,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:55:04,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:55:04,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:55:04,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:55:04,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:55:04,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:55:04,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:55:04,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:55:04,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:55:04,746 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 [2020-10-13 14:55:04,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:55:04,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:55:04,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:55:04,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:55:04,798 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:55:04,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:55:04,798 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:55:04,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:55:04,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:55:04,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:55:04,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:55:04,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:55:04,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:55:04,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:55:04,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:55:04,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:55:04,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:55:04,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:55:04,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:55:04,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:55:04,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:55:04,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:55:04,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:55:04,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:55:04,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:55:04,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:55:04,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:55:04,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:55:04,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:55:04,804 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 14:55:05,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:55:05,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:55:05,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:55:05,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:55:05,097 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:55:05,098 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:55:05,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab8393dc2/4748ed29e63e485397647a32610d9397/FLAG44f28747c [2020-10-13 14:55:05,698 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:55:05,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:55:05,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab8393dc2/4748ed29e63e485397647a32610d9397/FLAG44f28747c [2020-10-13 14:55:05,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab8393dc2/4748ed29e63e485397647a32610d9397 [2020-10-13 14:55:05,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:55:05,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:55:05,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:55:05,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:55:06,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:55:06,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:55:05" (1/1) ... [2020-10-13 14:55:06,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef601eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:06, skipping insertion in model container [2020-10-13 14:55:06,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:55:05" (1/1) ... [2020-10-13 14:55:06,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:55:06,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:55:06,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:55:06,888 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:55:07,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:55:07,364 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:55:07,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07 WrapperNode [2020-10-13 14:55:07,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:55:07,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:55:07,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:55:07,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:55:07,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (1/1) ... [2020-10-13 14:55:07,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (1/1) ... [2020-10-13 14:55:07,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (1/1) ... [2020-10-13 14:55:07,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (1/1) ... [2020-10-13 14:55:07,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (1/1) ... [2020-10-13 14:55:07,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (1/1) ... [2020-10-13 14:55:07,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (1/1) ... [2020-10-13 14:55:07,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:55:07,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:55:07,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:55:07,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:55:07,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (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 [2020-10-13 14:55:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:55:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:55:07,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:55:07,623 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:55:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:55:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:55:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 14:55:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:55:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:55:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:55:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:55:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:55:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:55:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:55:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:55:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:55:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:55:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:55:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:55:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:55:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:55:09,256 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:55:09,256 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:55:09,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:55:09 BoogieIcfgContainer [2020-10-13 14:55:09,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:55:09,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:55:09,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:55:09,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:55:09,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:55:05" (1/3) ... [2020-10-13 14:55:09,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217e821d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:55:09, skipping insertion in model container [2020-10-13 14:55:09,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:55:07" (2/3) ... [2020-10-13 14:55:09,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217e821d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:55:09, skipping insertion in model container [2020-10-13 14:55:09,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:55:09" (3/3) ... [2020-10-13 14:55:09,274 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:55:09,286 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:55:09,295 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-13 14:55:09,312 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-13 14:55:09,345 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:55:09,346 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:55:09,346 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:55:09,346 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:55:09,346 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:55:09,346 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:55:09,347 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:55:09,347 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:55:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states. [2020-10-13 14:55:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 14:55:09,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:55:09,424 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, 1, 1, 1, 1, 1] [2020-10-13 14:55:09,425 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:55:09,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:55:09,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2118038307, now seen corresponding path program 1 times [2020-10-13 14:55:09,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:55:09,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626541780] [2020-10-13 14:55:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:55:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:10,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:10,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:10,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:10,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:10,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:10,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:11,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:11,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:11,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:11,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:12,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:15,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:15,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 14:55:15,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 14:55:15,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-13 14:55:15,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:15,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:55:15,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:55:15,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 14:55:15,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 14:55:15,540 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:55:15,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:55:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:15,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:15,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:15,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:55:15,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:55:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 14:55:15,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:55:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:55:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:55:15,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:55:15,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626541780] [2020-10-13 14:55:15,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:55:15,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:55:15,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104001150] [2020-10-13 14:55:15,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:55:15,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:55:15,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:55:15,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:55:15,658 INFO L87 Difference]: Start difference. First operand 423 states. Second operand 5 states. [2020-10-13 14:55:19,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:55:19,942 INFO L93 Difference]: Finished difference Result 1227 states and 2176 transitions. [2020-10-13 14:55:19,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 14:55:19,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-13 14:55:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:55:19,985 INFO L225 Difference]: With dead ends: 1227 [2020-10-13 14:55:19,985 INFO L226 Difference]: Without dead ends: 809 [2020-10-13 14:55:19,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:55:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-10-13 14:55:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 782. [2020-10-13 14:55:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-10-13 14:55:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1124 transitions. [2020-10-13 14:55:20,129 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1124 transitions. Word has length 148 [2020-10-13 14:55:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:55:20,130 INFO L479 AbstractCegarLoop]: Abstraction has 782 states and 1124 transitions. [2020-10-13 14:55:20,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:55:20,130 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1124 transitions. [2020-10-13 14:55:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 14:55:20,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:55:20,136 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, 1, 1, 1, 1, 1, 1] [2020-10-13 14:55:20,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:55:20,137 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:55:20,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:55:20,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1546336867, now seen corresponding path program 1 times [2020-10-13 14:55:20,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:55:20,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825502195] [2020-10-13 14:55:20,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:55:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:20,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:20,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:20,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:20,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:20,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:20,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:20,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:20,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:20,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:21,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:21,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:21,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:24,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:25,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:25,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:25,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-13 14:55:25,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:55:25,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-13 14:55:25,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:25,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:55:25,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 14:55:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 14:55:25,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:25,498 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:55:25,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:55:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:25,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:25,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:25,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:55:25,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:55:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:55:25,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:55:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:55:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:55:25,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:55:25,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825502195] [2020-10-13 14:55:25,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:55:25,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:55:25,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889640115] [2020-10-13 14:55:25,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:55:25,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:55:25,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:55:25,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:55:25,554 INFO L87 Difference]: Start difference. First operand 782 states and 1124 transitions. Second operand 4 states. [2020-10-13 14:55:29,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:55:29,192 INFO L93 Difference]: Finished difference Result 2300 states and 3302 transitions. [2020-10-13 14:55:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 14:55:29,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-13 14:55:29,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:55:29,204 INFO L225 Difference]: With dead ends: 2300 [2020-10-13 14:55:29,205 INFO L226 Difference]: Without dead ends: 1550 [2020-10-13 14:55:29,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:55:29,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2020-10-13 14:55:29,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 784. [2020-10-13 14:55:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2020-10-13 14:55:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1126 transitions. [2020-10-13 14:55:29,297 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1126 transitions. Word has length 149 [2020-10-13 14:55:29,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:55:29,300 INFO L479 AbstractCegarLoop]: Abstraction has 784 states and 1126 transitions. [2020-10-13 14:55:29,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:55:29,300 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1126 transitions. [2020-10-13 14:55:29,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 14:55:29,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:55:29,306 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:55:29,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:55:29,307 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:55:29,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:55:29,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1371198406, now seen corresponding path program 1 times [2020-10-13 14:55:29,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:55:29,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035135493] [2020-10-13 14:55:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:55:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:29,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:29,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:29,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:29,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:29,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:29,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:29,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:29,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:30,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:30,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:30,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:31,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:31,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:34,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:34,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 14:55:34,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:55:34,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 14:55:34,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:55:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:55:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 14:55:34,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:34,792 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:55:34,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:55:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:34,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:34,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:34,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:55:34,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:55:34,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 14:55:34,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:34,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:55:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:55:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:55:34,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:34,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:55:34,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035135493] [2020-10-13 14:55:34,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:55:34,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:55:34,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263397441] [2020-10-13 14:55:34,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:55:34,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:55:34,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:55:34,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:55:34,878 INFO L87 Difference]: Start difference. First operand 784 states and 1126 transitions. Second operand 5 states. [2020-10-13 14:55:38,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:55:38,369 INFO L93 Difference]: Finished difference Result 2277 states and 3262 transitions. [2020-10-13 14:55:38,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:55:38,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-10-13 14:55:38,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:55:38,379 INFO L225 Difference]: With dead ends: 2277 [2020-10-13 14:55:38,379 INFO L226 Difference]: Without dead ends: 1509 [2020-10-13 14:55:38,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:55:38,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2020-10-13 14:55:38,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1486. [2020-10-13 14:55:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1486 states. [2020-10-13 14:55:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2116 transitions. [2020-10-13 14:55:38,450 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2116 transitions. Word has length 150 [2020-10-13 14:55:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:55:38,451 INFO L479 AbstractCegarLoop]: Abstraction has 1486 states and 2116 transitions. [2020-10-13 14:55:38,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:55:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2116 transitions. [2020-10-13 14:55:38,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 14:55:38,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:55:38,455 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:55:38,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:55:38,456 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:55:38,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:55:38,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1450689700, now seen corresponding path program 1 times [2020-10-13 14:55:38,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:55:38,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989669609] [2020-10-13 14:55:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:55:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:38,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:38,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:38,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:38,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:38,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:38,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:39,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:39,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:39,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:39,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:40,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:40,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:41,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:43,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:43,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 14:55:43,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 14:55:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 14:55:43,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:55:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:55:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 14:55:43,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:43,949 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:55:43,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:55:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:43,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:43,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:43,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:55:43,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:55:43,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:55:43,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:55:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:55:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:55:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:55:44,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989669609] [2020-10-13 14:55:44,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:55:44,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:55:44,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713018113] [2020-10-13 14:55:44,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:55:44,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:55:44,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:55:44,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:55:44,018 INFO L87 Difference]: Start difference. First operand 1486 states and 2116 transitions. Second operand 5 states. [2020-10-13 14:55:47,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:55:47,619 INFO L93 Difference]: Finished difference Result 4282 states and 6064 transitions. [2020-10-13 14:55:47,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:55:47,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-10-13 14:55:47,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:55:47,635 INFO L225 Difference]: With dead ends: 4282 [2020-10-13 14:55:47,635 INFO L226 Difference]: Without dead ends: 2862 [2020-10-13 14:55:47,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:55:47,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2020-10-13 14:55:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2832. [2020-10-13 14:55:47,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2832 states. [2020-10-13 14:55:47,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3996 transitions. [2020-10-13 14:55:47,789 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3996 transitions. Word has length 150 [2020-10-13 14:55:47,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:55:47,792 INFO L479 AbstractCegarLoop]: Abstraction has 2832 states and 3996 transitions. [2020-10-13 14:55:47,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:55:47,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3996 transitions. [2020-10-13 14:55:47,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 14:55:47,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:55:47,800 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:55:47,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:55:47,801 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:55:47,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:55:47,801 INFO L82 PathProgramCache]: Analyzing trace with hash -759261954, now seen corresponding path program 1 times [2020-10-13 14:55:47,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:55:47,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325716548] [2020-10-13 14:55:47,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:55:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:47,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:47,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:48,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:48,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:48,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:49,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:49,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:50,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:50,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:50,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:51,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:52,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:52,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-13 14:55:52,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:55:52,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 14:55:52,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:55:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:55:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 14:55:52,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:53,140 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:55:53,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:55:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:53,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:53,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:53,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:55:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:55:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:55:53,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:55:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:55:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:55:53,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:55:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:55:53,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325716548] [2020-10-13 14:55:53,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:55:53,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:55:53,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136141082] [2020-10-13 14:55:53,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:55:53,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:55:53,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:55:53,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:55:53,225 INFO L87 Difference]: Start difference. First operand 2832 states and 3996 transitions. Second operand 4 states. [2020-10-13 14:55:56,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:55:56,024 INFO L93 Difference]: Finished difference Result 8364 states and 11780 transitions. [2020-10-13 14:55:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 14:55:56,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2020-10-13 14:55:56,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:55:56,047 INFO L225 Difference]: With dead ends: 8364 [2020-10-13 14:55:56,047 INFO L226 Difference]: Without dead ends: 5610 [2020-10-13 14:55:56,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:55:56,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2020-10-13 14:55:56,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 2840. [2020-10-13 14:55:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2840 states. [2020-10-13 14:55:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4004 transitions. [2020-10-13 14:55:56,213 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4004 transitions. Word has length 151 [2020-10-13 14:55:56,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:55:56,214 INFO L479 AbstractCegarLoop]: Abstraction has 2840 states and 4004 transitions. [2020-10-13 14:55:56,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:55:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4004 transitions. [2020-10-13 14:55:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-13 14:55:56,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:55:56,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:55:56,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:55:56,220 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:55:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:55:56,221 INFO L82 PathProgramCache]: Analyzing trace with hash -965674331, now seen corresponding path program 1 times [2020-10-13 14:55:56,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:55:56,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774889257] [2020-10-13 14:55:56,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:55:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:56,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:56,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:56,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:56,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:56,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:56,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:56,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:57,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:58,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:59,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:59,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 14:55:59,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:55:59,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3097 [2020-10-13 14:55:59,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:55:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:55:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 14:55:59,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:59,742 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:55:59,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:55:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:55:59,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:55:59,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:55:59,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:55:59,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:55:59,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:55:59,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:55:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:55:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:55:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:55:59,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:55:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:55:59,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774889257] [2020-10-13 14:55:59,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:55:59,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:55:59,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427127454] [2020-10-13 14:55:59,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:55:59,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:55:59,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:55:59,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:55:59,844 INFO L87 Difference]: Start difference. First operand 2840 states and 4004 transitions. Second operand 5 states. [2020-10-13 14:56:03,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:56:03,564 INFO L93 Difference]: Finished difference Result 7728 states and 10906 transitions. [2020-10-13 14:56:03,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:56:03,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-10-13 14:56:03,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:56:03,586 INFO L225 Difference]: With dead ends: 7728 [2020-10-13 14:56:03,586 INFO L226 Difference]: Without dead ends: 5474 [2020-10-13 14:56:03,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:56:03,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2020-10-13 14:56:04,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5444. [2020-10-13 14:56:04,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5444 states. [2020-10-13 14:56:04,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 7598 transitions. [2020-10-13 14:56:04,046 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 7598 transitions. Word has length 152 [2020-10-13 14:56:04,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:56:04,046 INFO L479 AbstractCegarLoop]: Abstraction has 5444 states and 7598 transitions. [2020-10-13 14:56:04,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:56:04,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 7598 transitions. [2020-10-13 14:56:04,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 14:56:04,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:56:04,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:56:04,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:56:04,059 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:56:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:56:04,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1720041695, now seen corresponding path program 1 times [2020-10-13 14:56:04,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:56:04,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552348672] [2020-10-13 14:56:04,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:56:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:56:04,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:04,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:04,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:04,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:04,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:05,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:56:05,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 14:56:05,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 14:56:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1431 [2020-10-13 14:56:05,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:56:05,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:56:05,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 14:56:05,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 14:56:05,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:56:05,789 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:56:05,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:56:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:56:05,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:05,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:56:05,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:56:05,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:56:05,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:56:05,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:56:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:56:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:56:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:56:05,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:56:05,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:56:05,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552348672] [2020-10-13 14:56:05,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:56:05,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:56:05,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185950292] [2020-10-13 14:56:05,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:56:05,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:56:05,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:56:05,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:56:05,843 INFO L87 Difference]: Start difference. First operand 5444 states and 7598 transitions. Second operand 4 states. [2020-10-13 14:56:09,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:56:09,654 INFO L93 Difference]: Finished difference Result 15952 states and 22186 transitions. [2020-10-13 14:56:09,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 14:56:09,655 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-10-13 14:56:09,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:56:09,696 INFO L225 Difference]: With dead ends: 15952 [2020-10-13 14:56:09,696 INFO L226 Difference]: Without dead ends: 10714 [2020-10-13 14:56:09,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:56:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2020-10-13 14:56:10,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 5476. [2020-10-13 14:56:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5476 states. [2020-10-13 14:56:10,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 7630 transitions. [2020-10-13 14:56:10,095 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 7630 transitions. Word has length 153 [2020-10-13 14:56:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:56:10,096 INFO L479 AbstractCegarLoop]: Abstraction has 5476 states and 7630 transitions. [2020-10-13 14:56:10,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:56:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 7630 transitions. [2020-10-13 14:56:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 14:56:10,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:56:10,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:56:10,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 14:56:10,108 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:56:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:56:10,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1677945119, now seen corresponding path program 1 times [2020-10-13 14:56:10,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:56:10,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946861032] [2020-10-13 14:56:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:56:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:56:10,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:10,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:10,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:10,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:10,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:10,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:10,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:11,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:11,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:11,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:56:11,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 14:56:11,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:56:11,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1241 [2020-10-13 14:56:11,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:56:11,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 14:56:11,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:56:11,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 14:56:11,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:56:11,770 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:56:11,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:56:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:56:11,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:11,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:56:11,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:56:11,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:56:11,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:56:11,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:56:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:56:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:56:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:56:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:56:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:56:11,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946861032] [2020-10-13 14:56:11,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:56:11,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:56:11,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094162616] [2020-10-13 14:56:11,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 14:56:11,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:56:11,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 14:56:11,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:56:11,834 INFO L87 Difference]: Start difference. First operand 5476 states and 7630 transitions. Second operand 5 states. [2020-10-13 14:56:15,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:56:15,920 INFO L93 Difference]: Finished difference Result 14767 states and 20566 transitions. [2020-10-13 14:56:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:56:15,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-10-13 14:56:15,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:56:15,943 INFO L225 Difference]: With dead ends: 14767 [2020-10-13 14:56:15,943 INFO L226 Difference]: Without dead ends: 10489 [2020-10-13 14:56:15,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:56:15,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10489 states. [2020-10-13 14:56:16,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10489 to 10459. [2020-10-13 14:56:16,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10459 states. [2020-10-13 14:56:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10459 states to 10459 states and 14370 transitions. [2020-10-13 14:56:16,675 INFO L78 Accepts]: Start accepts. Automaton has 10459 states and 14370 transitions. Word has length 154 [2020-10-13 14:56:16,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:56:16,675 INFO L479 AbstractCegarLoop]: Abstraction has 10459 states and 14370 transitions. [2020-10-13 14:56:16,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 14:56:16,676 INFO L276 IsEmpty]: Start isEmpty. Operand 10459 states and 14370 transitions. [2020-10-13 14:56:16,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 14:56:16,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:56:16,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:56:16,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 14:56:16,691 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:56:16,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:56:16,691 INFO L82 PathProgramCache]: Analyzing trace with hash 434738470, now seen corresponding path program 1 times [2020-10-13 14:56:16,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:56:16,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956769214] [2020-10-13 14:56:16,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:56:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:56:16,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:16,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:56:16,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 14:56:16,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:56:16,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-13 14:56:16,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:56:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:56:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-13 14:56:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 14:56:16,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:56:17,122 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:56:17,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:56:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:56:17,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:17,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:56:17,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:56:17,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:56:17,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:56:17,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:56:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:56:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:56:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:56:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:56:17,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:56:17,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956769214] [2020-10-13 14:56:17,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:56:17,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:56:17,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019482584] [2020-10-13 14:56:17,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:56:17,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:56:17,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:56:17,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:56:17,180 INFO L87 Difference]: Start difference. First operand 10459 states and 14370 transitions. Second operand 4 states. [2020-10-13 14:56:17,444 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-13 14:56:20,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:56:20,586 INFO L93 Difference]: Finished difference Result 18195 states and 25879 transitions. [2020-10-13 14:56:20,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:56:20,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-13 14:56:20,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:56:20,615 INFO L225 Difference]: With dead ends: 18195 [2020-10-13 14:56:20,615 INFO L226 Difference]: Without dead ends: 13901 [2020-10-13 14:56:20,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:56:20,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13901 states. [2020-10-13 14:56:21,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13901 to 13899. [2020-10-13 14:56:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13899 states. [2020-10-13 14:56:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13899 states to 13899 states and 19346 transitions. [2020-10-13 14:56:21,497 INFO L78 Accepts]: Start accepts. Automaton has 13899 states and 19346 transitions. Word has length 154 [2020-10-13 14:56:21,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:56:21,498 INFO L479 AbstractCegarLoop]: Abstraction has 13899 states and 19346 transitions. [2020-10-13 14:56:21,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:56:21,498 INFO L276 IsEmpty]: Start isEmpty. Operand 13899 states and 19346 transitions. [2020-10-13 14:56:21,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 14:56:21,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:56:21,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:56:21,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 14:56:21,515 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:56:21,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:56:21,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1200431614, now seen corresponding path program 1 times [2020-10-13 14:56:21,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:56:21,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111057486] [2020-10-13 14:56:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:56:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:56:21,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:21,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:56:21,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 14:56:21,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:56:21,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 14:56:21,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:56:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:56:21,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 14:56:21,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 14:56:21,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:56:22,099 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 14:56:22,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:56:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:56:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:56:22,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:56:22,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:56:22,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:56:22,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:56:22,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:56:22,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:56:22,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:56:22,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:56:22,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:56:22,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:56:22,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111057486] [2020-10-13 14:56:22,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:56:22,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 14:56:22,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144172585] [2020-10-13 14:56:22,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 14:56:22,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:56:22,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 14:56:22,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 14:56:22,152 INFO L87 Difference]: Start difference. First operand 13899 states and 19346 transitions. Second operand 4 states. [2020-10-13 14:56:22,409 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-13 14:56:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:56:25,718 INFO L93 Difference]: Finished difference Result 26096 states and 37600 transitions. [2020-10-13 14:56:25,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 14:56:25,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-13 14:56:25,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:56:25,752 INFO L225 Difference]: With dead ends: 26096 [2020-10-13 14:56:25,752 INFO L226 Difference]: Without dead ends: 20358 [2020-10-13 14:56:25,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 14:56:25,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20358 states. [2020-10-13 14:56:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20358 to 20266. [2020-10-13 14:56:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20266 states. [2020-10-13 14:56:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20266 states to 20266 states and 28487 transitions. [2020-10-13 14:56:27,711 INFO L78 Accepts]: Start accepts. Automaton has 20266 states and 28487 transitions. Word has length 154 [2020-10-13 14:56:27,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:56:27,711 INFO L479 AbstractCegarLoop]: Abstraction has 20266 states and 28487 transitions. [2020-10-13 14:56:27,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 14:56:27,712 INFO L276 IsEmpty]: Start isEmpty. Operand 20266 states and 28487 transitions. [2020-10-13 14:56:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 14:56:27,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:56:27,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:56:27,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 14:56:27,728 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:56:27,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:56:27,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1377742214, now seen corresponding path program 1 times [2020-10-13 14:56:27,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:56:27,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352495048] [2020-10-13 14:56:27,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:56:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 14:56:27,775 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 14:56:27,775 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 14:56:27,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 14:56:27,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 02:56:27 BoogieIcfgContainer [2020-10-13 14:56:27,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 14:56:27,834 INFO L168 Benchmark]: Toolchain (without parser) took 81838.51 ms. Allocated memory was 147.8 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 100.9 MB in the beginning and 907.8 MB in the end (delta: -806.9 MB). Peak memory consumption was 384.3 MB. Max. memory is 7.1 GB. [2020-10-13 14:56:27,835 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 14:56:27,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1368.63 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 100.5 MB in the beginning and 162.7 MB in the end (delta: -62.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-10-13 14:56:27,836 INFO L168 Benchmark]: Boogie Preprocessor took 162.28 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 157.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-13 14:56:27,837 INFO L168 Benchmark]: RCFGBuilder took 1737.03 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 157.3 MB in the beginning and 90.0 MB in the end (delta: 67.3 MB). Peak memory consumption was 97.2 MB. Max. memory is 7.1 GB. [2020-10-13 14:56:27,838 INFO L168 Benchmark]: TraceAbstraction took 78565.72 ms. Allocated memory was 234.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 90.0 MB in the beginning and 907.8 MB in the end (delta: -817.8 MB). Peak memory consumption was 286.4 MB. Max. memory is 7.1 GB. [2020-10-13 14:56:27,841 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1368.63 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 100.5 MB in the beginning and 162.7 MB in the end (delta: -62.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.28 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 157.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1737.03 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 157.3 MB in the beginning and 90.0 MB in the end (delta: 67.3 MB). Peak memory consumption was 97.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 78565.72 ms. Allocated memory was 234.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 90.0 MB in the beginning and 907.8 MB in the end (delta: -817.8 MB). Peak memory consumption was 286.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 892]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1] int __return_main; [L15] msg_t nomsg = (msg_t )-1; [L16] port_t p12 = 0; [L17] char p12_old = '\x0'; [L18] char p12_new = '\x0'; [L19] _Bool ep12 = 0; [L20] port_t p13 = 0; [L21] char p13_old = '\x0'; [L22] char p13_new = '\x0'; [L23] _Bool ep13 = 0; [L24] port_t p21 = 0; [L25] char p21_old = '\x0'; [L26] char p21_new = '\x0'; [L27] _Bool ep21 = 0; [L28] port_t p23 = 0; [L29] char p23_old = '\x0'; [L30] char p23_new = '\x0'; [L31] _Bool ep23 = 0; [L32] port_t p31 = 0; [L33] char p31_old = '\x0'; [L34] char p31_new = '\x0'; [L35] _Bool ep31 = 0; [L36] port_t p32 = 0; [L37] char p32_old = '\x0'; [L38] char p32_new = '\x0'; [L39] _Bool ep32 = 0; [L40] char id1 = '\x0'; [L41] unsigned char r1 = '\x0'; [L42] char st1 = '\x0'; [L43] char nl1 = '\x0'; [L44] char m1 = '\x0'; [L45] char max1 = '\x0'; [L46] _Bool mode1 = 0; [L47] _Bool newmax1 = 0; [L48] char id2 = '\x0'; [L49] unsigned char r2 = '\x0'; [L50] char st2 = '\x0'; [L51] char nl2 = '\x0'; [L52] char m2 = '\x0'; [L53] char max2 = '\x0'; [L54] _Bool mode2 = 0; [L55] _Bool newmax2 = 0; [L56] char id3 = '\x0'; [L57] unsigned char r3 = '\x0'; [L58] char st3 = '\x0'; [L59] char nl3 = '\x0'; [L60] char m3 = '\x0'; [L61] char max3 = '\x0'; [L62] _Bool mode3 = 0; [L63] _Bool newmax3 = 0; [L67] void (*nodes[3])() = { &node1, &node2, &node3 }; [L71] int __return_1873; [L72] int __return_2019; [L73] int __return_2152; [L74] int __return_2288; [L75] int __return_3084; [L76] int __return_3053; [L77] int __return_2989; [L78] int __return_2955; [L79] int __return_2551; [L80] int __return_2840; [L81] int __return_2806; [L82] int __return_2721; [L83] int __return_2426; [L86] int main__c1; [L87] int main__i2; [L88] main__c1 = 0 [L89] ep12 = __VERIFIER_nondet_bool() [L90] ep13 = __VERIFIER_nondet_bool() [L91] ep21 = __VERIFIER_nondet_bool() [L92] ep23 = __VERIFIER_nondet_bool() [L93] ep31 = __VERIFIER_nondet_bool() [L94] ep32 = __VERIFIER_nondet_bool() [L95] id1 = __VERIFIER_nondet_char() [L96] r1 = __VERIFIER_nondet_uchar() [L97] st1 = __VERIFIER_nondet_char() [L98] nl1 = __VERIFIER_nondet_char() [L99] m1 = __VERIFIER_nondet_char() [L100] max1 = __VERIFIER_nondet_char() [L101] mode1 = __VERIFIER_nondet_bool() [L102] newmax1 = __VERIFIER_nondet_bool() [L103] id2 = __VERIFIER_nondet_char() [L104] r2 = __VERIFIER_nondet_uchar() [L105] st2 = __VERIFIER_nondet_char() [L106] nl2 = __VERIFIER_nondet_char() [L107] m2 = __VERIFIER_nondet_char() [L108] max2 = __VERIFIER_nondet_char() [L109] mode2 = __VERIFIER_nondet_bool() [L110] newmax2 = __VERIFIER_nondet_bool() [L111] id3 = __VERIFIER_nondet_char() [L112] r3 = __VERIFIER_nondet_uchar() [L113] st3 = __VERIFIER_nondet_char() [L114] nl3 = __VERIFIER_nondet_char() [L115] m3 = __VERIFIER_nondet_char() [L116] max3 = __VERIFIER_nondet_char() [L117] mode3 = __VERIFIER_nondet_bool() [L118] newmax3 = __VERIFIER_nondet_bool() [L120] _Bool init__r121; [L121] _Bool init__r131; [L122] _Bool init__r211; [L123] _Bool init__r231; [L124] _Bool init__r311; [L125] _Bool init__r321; [L126] _Bool init__r122; [L127] int init__tmp; [L128] _Bool init__r132; [L129] int init__tmp___0; [L130] _Bool init__r212; [L131] int init__tmp___1; [L132] _Bool init__r232; [L133] int init__tmp___2; [L134] _Bool init__r312; [L135] int init__tmp___3; [L136] _Bool init__r322; [L137] int init__tmp___4; [L138] int init__tmp___5; [L139] init__r121 = ep12 [L140] init__r131 = ep13 [L141] init__r211 = ep21 [L142] init__r231 = ep23 [L143] init__r311 = ep31 [L144] init__r321 = ep32 [L145] COND FALSE !(!(init__r121 == 0)) [L3186] COND FALSE !(!(init__r131 == 0)) [L3202] init__tmp = 0 [L149] init__r122 = (_Bool)init__tmp [L150] COND FALSE !(!(init__r131 == 0)) [L3163] COND FALSE !(!(init__r121 == 0)) [L3179] init__tmp___0 = 0 [L154] init__r132 = (_Bool)init__tmp___0 [L155] COND FALSE !(!(init__r211 == 0)) [L3140] COND FALSE !(!(init__r231 == 0)) [L3156] init__tmp___1 = 0 [L159] init__r212 = (_Bool)init__tmp___1 [L160] COND FALSE !(!(init__r231 == 0)) [L3117] COND FALSE !(!(init__r211 == 0)) [L3133] init__tmp___2 = 0 [L164] init__r232 = (_Bool)init__tmp___2 [L165] COND FALSE !(!(init__r311 == 0)) [L3094] COND FALSE !(!(init__r321 == 0)) [L3110] init__tmp___3 = 0 [L169] init__r312 = (_Bool)init__tmp___3 [L170] COND FALSE !(!(init__r321 == 0)) [L3071] COND FALSE !(!(init__r311 == 0)) [L3087] init__tmp___4 = 0 [L174] init__r322 = (_Bool)init__tmp___4 [L175] COND TRUE ((int)id1) != ((int)id2) [L177] COND TRUE ((int)id1) != ((int)id3) [L179] COND TRUE ((int)id2) != ((int)id3) [L181] COND TRUE ((int)id1) >= 0 [L183] COND TRUE ((int)id2) >= 0 [L185] COND TRUE ((int)id3) >= 0 [L187] COND TRUE ((int)r1) == 0 [L189] COND TRUE ((int)r2) == 0 [L191] COND TRUE ((int)r3) == 0 [L193] COND TRUE ((int)max1) == ((int)id1) [L195] COND TRUE ((int)max2) == ((int)id2) [L197] COND TRUE ((int)max3) == ((int)id3) [L199] COND TRUE ((int)st1) == 0 [L201] COND TRUE ((int)st2) == 0 [L203] COND TRUE ((int)st3) == 0 [L205] COND TRUE ((int)nl1) == 0 [L207] COND TRUE ((int)nl2) == 0 [L209] COND TRUE ((int)nl3) == 0 [L211] COND TRUE ((int)mode1) == 0 [L213] COND TRUE ((int)mode2) == 0 [L215] COND TRUE ((int)mode3) == 0 [L217] COND TRUE !(newmax1 == 0) [L219] COND TRUE !(newmax2 == 0) [L221] COND TRUE !(newmax3 == 0) [L223] init__tmp___5 = 1 [L224] __return_1873 = init__tmp___5 [L225] main__i2 = __return_1873 [L226] COND TRUE main__i2 != 0 [L228] p12_old = nomsg [L229] p12_new = nomsg [L230] p13_old = nomsg [L231] p13_new = nomsg [L232] p21_old = nomsg [L233] p21_new = nomsg [L234] p23_old = nomsg [L235] p23_new = nomsg [L236] p31_old = nomsg [L237] p31_new = nomsg [L238] p32_old = nomsg [L239] p32_new = nomsg [L240] main__i2 = 0 [L242] _Bool node1__newmax; [L243] node1__newmax = 0 [L244] COND FALSE !(!(mode1 == 0)) [L250] COND TRUE ((int)r1) < 2 [L252] COND FALSE !(!(ep12 == 0)) [L265] COND FALSE !(!(ep13 == 0)) [L278] mode1 = 1 [L280] _Bool node2__newmax; [L281] node2__newmax = 0 [L282] COND FALSE !(!(mode2 == 0)) [L288] COND TRUE ((int)r2) < 2 [L290] COND FALSE !(!(ep21 == 0)) [L303] COND FALSE !(!(ep23 == 0)) [L316] mode2 = 1 [L318] _Bool node3__newmax; [L319] node3__newmax = 0 [L320] COND FALSE !(!(mode3 == 0)) [L326] COND TRUE ((int)r3) < 2 [L328] COND FALSE !(!(ep31 == 0)) [L341] COND FALSE !(!(ep32 == 0)) [L354] mode3 = 1 [L355] p12_old = p12_new [L356] p12_new = nomsg [L357] p13_old = p13_new [L358] p13_new = nomsg [L359] p21_old = p21_new [L360] p21_new = nomsg [L361] p23_old = p23_new [L362] p23_new = nomsg [L363] p31_old = p31_new [L364] p31_new = nomsg [L365] p32_old = p32_new [L366] p32_new = nomsg [L368] int check__tmp; [L369] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L371] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L373] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L375] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L377] COND FALSE !(((int)r1) >= 2) [L383] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L385] COND TRUE ((int)r1) < 2 [L387] COND FALSE !(((int)r1) >= 2) [L393] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L395] COND TRUE ((int)r1) < 2 [L397] check__tmp = 1 [L398] __return_2019 = check__tmp [L399] main__c1 = __return_2019 [L401] _Bool __tmp_1; [L402] __tmp_1 = main__c1 [L403] _Bool assert__arg; [L404] assert__arg = __tmp_1 [L405] COND FALSE !(assert__arg == 0) [L412] _Bool node1__newmax; [L413] node1__newmax = 0 [L414] COND TRUE !(mode1 == 0) [L416] COND FALSE !(r1 == 255) [L422] r1 = r1 + 1 [L423] COND FALSE !(!(ep21 == 0)) [L432] COND FALSE !(!(ep31 == 0)) [L441] newmax1 = node1__newmax [L442] COND FALSE !(((int)r1) == 2) [L448] mode1 = 0 [L450] _Bool node2__newmax; [L451] node2__newmax = 0 [L452] COND TRUE !(mode2 == 0) [L454] COND FALSE !(r2 == 255) [L460] r2 = r2 + 1 [L461] COND FALSE !(!(ep12 == 0)) [L470] COND FALSE !(!(ep32 == 0)) [L479] newmax2 = node2__newmax [L480] COND FALSE !(((int)r2) == 2) [L486] mode2 = 0 [L488] _Bool node3__newmax; [L489] node3__newmax = 0 [L490] COND TRUE !(mode3 == 0) [L492] COND FALSE !(r3 == 255) [L498] r3 = r3 + 1 [L499] COND FALSE !(!(ep13 == 0)) [L508] COND FALSE !(!(ep23 == 0)) [L517] newmax3 = node3__newmax [L518] COND FALSE !(((int)r3) == 2) [L524] mode3 = 0 [L525] p12_old = p12_new [L526] p12_new = nomsg [L527] p13_old = p13_new [L528] p13_new = nomsg [L529] p21_old = p21_new [L530] p21_new = nomsg [L531] p23_old = p23_new [L532] p23_new = nomsg [L533] p31_old = p31_new [L534] p31_new = nomsg [L535] p32_old = p32_new [L536] p32_new = nomsg [L538] int check__tmp; [L539] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L541] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L543] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L545] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L547] COND FALSE !(((int)r1) >= 2) [L553] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L555] COND TRUE ((int)r1) < 2 [L557] COND FALSE !(((int)r1) >= 2) [L563] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L565] COND TRUE ((int)r1) < 2 [L567] check__tmp = 1 [L568] __return_2152 = check__tmp [L569] main__c1 = __return_2152 [L571] _Bool __tmp_2; [L572] __tmp_2 = main__c1 [L573] _Bool assert__arg; [L574] assert__arg = __tmp_2 [L575] COND FALSE !(assert__arg == 0) [L582] _Bool node1__newmax; [L583] node1__newmax = 0 [L584] COND FALSE !(!(mode1 == 0)) [L590] COND TRUE ((int)r1) < 2 [L592] COND FALSE !(!(ep12 == 0)) [L605] COND FALSE !(!(ep13 == 0)) [L618] mode1 = 1 [L620] _Bool node2__newmax; [L621] node2__newmax = 0 [L622] COND FALSE !(!(mode2 == 0)) [L628] COND TRUE ((int)r2) < 2 [L630] COND FALSE !(!(ep21 == 0)) [L643] COND FALSE !(!(ep23 == 0)) [L656] mode2 = 1 [L658] _Bool node3__newmax; [L659] node3__newmax = 0 [L660] COND FALSE !(!(mode3 == 0)) [L666] COND TRUE ((int)r3) < 2 [L668] COND FALSE !(!(ep31 == 0)) [L681] COND FALSE !(!(ep32 == 0)) [L694] mode3 = 1 [L695] p12_old = p12_new [L696] p12_new = nomsg [L697] p13_old = p13_new [L698] p13_new = nomsg [L699] p21_old = p21_new [L700] p21_new = nomsg [L701] p23_old = p23_new [L702] p23_new = nomsg [L703] p31_old = p31_new [L704] p31_new = nomsg [L705] p32_old = p32_new [L706] p32_new = nomsg [L708] int check__tmp; [L709] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L711] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L713] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L715] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L717] COND FALSE !(((int)r1) >= 2) [L723] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L725] COND TRUE ((int)r1) < 2 [L727] COND FALSE !(((int)r1) >= 2) [L733] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L735] COND TRUE ((int)r1) < 2 [L737] check__tmp = 1 [L738] __return_2288 = check__tmp [L739] main__c1 = __return_2288 [L741] _Bool __tmp_3; [L742] __tmp_3 = main__c1 [L743] _Bool assert__arg; [L744] assert__arg = __tmp_3 [L745] COND FALSE !(assert__arg == 0) [L752] _Bool node1__newmax; [L753] node1__newmax = 0 [L754] COND TRUE !(mode1 == 0) [L756] COND FALSE !(r1 == 255) [L762] r1 = r1 + 1 [L763] COND FALSE !(!(ep21 == 0)) [L772] COND FALSE !(!(ep31 == 0)) [L781] newmax1 = node1__newmax [L782] COND TRUE ((int)r1) == 2 [L784] COND TRUE ((int)max1) == ((int)id1) [L786] st1 = 1 [L787] mode1 = 0 [L789] _Bool node2__newmax; [L790] node2__newmax = 0 [L791] COND TRUE !(mode2 == 0) [L793] COND FALSE !(r2 == 255) [L799] r2 = r2 + 1 [L800] COND FALSE !(!(ep12 == 0)) [L809] COND FALSE !(!(ep32 == 0)) [L818] newmax2 = node2__newmax [L819] COND TRUE ((int)r2) == 2 [L821] COND TRUE ((int)max2) == ((int)id2) [L823] st2 = 1 [L824] mode2 = 0 [L826] _Bool node3__newmax; [L827] node3__newmax = 0 [L828] COND TRUE !(mode3 == 0) [L830] COND FALSE !(r3 == 255) [L836] r3 = r3 + 1 [L837] COND FALSE !(!(ep13 == 0)) [L846] COND FALSE !(!(ep23 == 0)) [L855] newmax3 = node3__newmax [L856] COND TRUE ((int)r3) == 2 [L858] COND TRUE ((int)max3) == ((int)id3) [L860] st3 = 1 [L861] mode3 = 0 [L862] p12_old = p12_new [L863] p12_new = nomsg [L864] p13_old = p13_new [L865] p13_new = nomsg [L866] p21_old = p21_new [L867] p21_new = nomsg [L868] p23_old = p23_new [L869] p23_new = nomsg [L870] p31_old = p31_new [L871] p31_new = nomsg [L872] p32_old = p32_new [L873] p32_new = nomsg [L875] int check__tmp; [L876] COND FALSE !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1) [L882] check__tmp = 0 [L883] __return_3084 = check__tmp [L884] main__c1 = __return_3084 [L886] _Bool __tmp_4; [L887] __tmp_4 = main__c1 [L888] _Bool assert__arg; [L889] assert__arg = __tmp_4 [L890] COND TRUE assert__arg == 0 [L892] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 427 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 78.4s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 36.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10092 SDtfs, 8747 SDslu, 5489 SDs, 0 SdLazy, 10636 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20266occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 9008 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 34.8s InterpolantComputationTime, 1669 NumberOfCodeBlocks, 1669 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1505 ConstructedInterpolants, 0 QuantifiedInterpolants, 928424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...