/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:41:20,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:41:20,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:41:20,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:41:20,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:41:20,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:41:20,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:41:20,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:41:20,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:41:20,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:41:20,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:41:20,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:41:20,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:41:20,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:41:20,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:41:20,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:41:20,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:41:20,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:41:20,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:41:20,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:41:20,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:41:20,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:41:20,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:41:20,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:41:20,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:41:20,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:41:20,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:41:20,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:41:20,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:41:20,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:41:20,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:41:20,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:41:20,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:41:20,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:41:20,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:41:20,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:41:20,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:41:20,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:41:20,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:41:20,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:41:20,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:41:20,496 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 [2020-10-12 19:41:20,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:41:20,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:41:20,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:41:20,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:41:20,537 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:41:20,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:41:20,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:41:20,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:41:20,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:41:20,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:41:20,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:41:20,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:41:20,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:41:20,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:41:20,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:41:20,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:41:20,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:41:20,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:41:20,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:41:20,541 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:41:20,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:41:20,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:41:20,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:41:20,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:41:20,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:41:20,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:41:20,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:41:20,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:41:20,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:41:20,543 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:41:20,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:41:20,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:41:20,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:41:20,890 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:41:20,891 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:41:20,891 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-10-12 19:41:20,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/185eb4341/b3b177b02d794f828c45bd9699ae2f1c/FLAG341424956 [2020-10-12 19:41:21,685 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:41:21,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-10-12 19:41:21,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/185eb4341/b3b177b02d794f828c45bd9699ae2f1c/FLAG341424956 [2020-10-12 19:41:21,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/185eb4341/b3b177b02d794f828c45bd9699ae2f1c [2020-10-12 19:41:21,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:41:21,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:41:21,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:41:21,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:41:21,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:41:21,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:21" (1/1) ... [2020-10-12 19:41:21,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b844dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:21, skipping insertion in model container [2020-10-12 19:41:21,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:21" (1/1) ... [2020-10-12 19:41:21,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:41:22,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:41:23,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:41:23,976 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:41:25,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:41:25,260 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:41:25,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25 WrapperNode [2020-10-12 19:41:25,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:41:25,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:41:25,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:41:25,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:41:25,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (1/1) ... [2020-10-12 19:41:25,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (1/1) ... [2020-10-12 19:41:25,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (1/1) ... [2020-10-12 19:41:25,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (1/1) ... [2020-10-12 19:41:25,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (1/1) ... [2020-10-12 19:41:25,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (1/1) ... [2020-10-12 19:41:25,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (1/1) ... [2020-10-12 19:41:25,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:41:25,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:41:25,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:41:25,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:41:25,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (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 [2020-10-12 19:41:25,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:41:25,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:41:25,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:41:25,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:41:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:41:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:41:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:41:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:41:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:41:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:41:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:41:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:41:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:41:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:41:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:41:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:41:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:41:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 19:41:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:41:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:41:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:41:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:41:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:41:31,825 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:41:31,826 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:41:31,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:31 BoogieIcfgContainer [2020-10-12 19:41:31,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:41:31,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:41:31,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:41:31,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:41:31,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:41:21" (1/3) ... [2020-10-12 19:41:31,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7e343d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:41:31, skipping insertion in model container [2020-10-12 19:41:31,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:25" (2/3) ... [2020-10-12 19:41:31,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7e343d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:41:31, skipping insertion in model container [2020-10-12 19:41:31,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:31" (3/3) ... [2020-10-12 19:41:31,854 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-10-12 19:41:31,864 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:41:31,876 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-12 19:41:31,889 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-12 19:41:31,919 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:41:31,919 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:41:31,919 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:41:31,919 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:41:31,920 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:41:31,920 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:41:31,920 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:41:31,920 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:41:31,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states. [2020-10-12 19:41:32,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:41:32,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:32,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:41:32,007 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:32,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:32,013 INFO L82 PathProgramCache]: Analyzing trace with hash -295046239, now seen corresponding path program 1 times [2020-10-12 19:41:32,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:32,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473527788] [2020-10-12 19:41:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:32,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:33,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:33,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:33,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:34,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:37,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:37,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:41:37,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:41:37,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-12 19:41:37,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:41:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:41:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 19:41:37,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:41:43,235 WARN L193 SmtUtils]: Spent 5.36 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-12 19:41:43,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:43,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:43,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:43,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:43,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:43,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 19:41:43,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:43,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:41:43,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473527788] [2020-10-12 19:41:43,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:43,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:41:43,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605361218] [2020-10-12 19:41:43,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:41:43,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:43,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:41:43,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:41:43,444 INFO L87 Difference]: Start difference. First operand 2546 states. Second operand 7 states. [2020-10-12 19:41:49,104 WARN L193 SmtUtils]: Spent 5.42 s on a formula simplification that was a NOOP. DAG size: 1058 [2020-10-12 19:42:29,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:29,983 INFO L93 Difference]: Finished difference Result 5524 states and 9135 transitions. [2020-10-12 19:42:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:42:29,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-12 19:42:29,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:30,039 INFO L225 Difference]: With dead ends: 5524 [2020-10-12 19:42:30,039 INFO L226 Difference]: Without dead ends: 4872 [2020-10-12 19:42:30,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:42:30,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4872 states. [2020-10-12 19:42:30,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4872 to 3252. [2020-10-12 19:42:30,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3252 states. [2020-10-12 19:42:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4226 transitions. [2020-10-12 19:42:30,262 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4226 transitions. Word has length 91 [2020-10-12 19:42:30,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:30,263 INFO L479 AbstractCegarLoop]: Abstraction has 3252 states and 4226 transitions. [2020-10-12 19:42:30,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:42:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4226 transitions. [2020-10-12 19:42:30,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:42:30,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:30,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:42:30,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:42:30,274 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:30,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:30,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1243391824, now seen corresponding path program 1 times [2020-10-12 19:42:30,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:30,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182226060] [2020-10-12 19:42:30,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:30,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:30,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:30,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:33,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:34,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:34,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:35,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:35,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:42:35,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:42:35,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-12 19:42:35,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:42:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:42:35,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:41,214 WARN L193 SmtUtils]: Spent 4.99 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-12 19:42:41,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:41,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:41,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:41,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:41,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:41,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 19:42:41,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:41,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:41,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:41,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:41,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:42:41,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182226060] [2020-10-12 19:42:41,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:41,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:42:41,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100319406] [2020-10-12 19:42:41,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:42:41,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:41,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:42:41,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:42:41,496 INFO L87 Difference]: Start difference. First operand 3252 states and 4226 transitions. Second operand 12 states. [2020-10-12 19:42:41,687 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-10-12 19:42:52,568 WARN L193 SmtUtils]: Spent 10.72 s on a formula simplification. DAG size of input: 1098 DAG size of output: 1080 [2020-10-12 19:43:23,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:43:23,742 INFO L93 Difference]: Finished difference Result 7510 states and 9944 transitions. [2020-10-12 19:43:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 19:43:23,743 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2020-10-12 19:43:23,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:43:23,781 INFO L225 Difference]: With dead ends: 7510 [2020-10-12 19:43:23,781 INFO L226 Difference]: Without dead ends: 7331 [2020-10-12 19:43:23,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:43:23,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7331 states. [2020-10-12 19:43:23,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7331 to 3250. [2020-10-12 19:43:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3250 states. [2020-10-12 19:43:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 4223 transitions. [2020-10-12 19:43:23,978 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 4223 transitions. Word has length 91 [2020-10-12 19:43:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:43:23,979 INFO L479 AbstractCegarLoop]: Abstraction has 3250 states and 4223 transitions. [2020-10-12 19:43:23,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:43:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 4223 transitions. [2020-10-12 19:43:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:43:23,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:43:23,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:43:23,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:43:23,988 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:43:23,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:43:23,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1230486497, now seen corresponding path program 1 times [2020-10-12 19:43:23,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:43:23,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359175440] [2020-10-12 19:43:23,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:43:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:24,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:24,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:24,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:24,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:25,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:27,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:27,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:29,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:29,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:43:29,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:43:29,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 19:43:29,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:43:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 19:43:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 19:43:29,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:34,988 WARN L193 SmtUtils]: Spent 5.70 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-12 19:43:34,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:35,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:35,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:35,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:35,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:35,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 19:43:35,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:43:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:43:35,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:35,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:43:35,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359175440] [2020-10-12 19:43:35,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:35,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:43:35,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475793471] [2020-10-12 19:43:35,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:43:35,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:35,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:43:35,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:43:35,118 INFO L87 Difference]: Start difference. First operand 3250 states and 4223 transitions. Second operand 7 states. [2020-10-12 19:43:40,311 WARN L193 SmtUtils]: Spent 5.06 s on a formula simplification that was a NOOP. DAG size: 1058 [2020-10-12 19:44:02,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:02,386 INFO L93 Difference]: Finished difference Result 6836 states and 9094 transitions. [2020-10-12 19:44:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:44:02,387 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-12 19:44:02,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:02,410 INFO L225 Difference]: With dead ends: 6836 [2020-10-12 19:44:02,410 INFO L226 Difference]: Without dead ends: 5990 [2020-10-12 19:44:02,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:44:02,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5990 states. [2020-10-12 19:44:02,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5990 to 3857. [2020-10-12 19:44:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3857 states. [2020-10-12 19:44:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 5113 transitions. [2020-10-12 19:44:02,685 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 5113 transitions. Word has length 91 [2020-10-12 19:44:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:02,685 INFO L479 AbstractCegarLoop]: Abstraction has 3857 states and 5113 transitions. [2020-10-12 19:44:02,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:44:02,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 5113 transitions. [2020-10-12 19:44:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:44:02,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:02,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:44:02,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:44:02,698 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:02,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:02,699 INFO L82 PathProgramCache]: Analyzing trace with hash 167416545, now seen corresponding path program 1 times [2020-10-12 19:44:02,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:02,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229483736] [2020-10-12 19:44:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:02,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:02,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:03,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:03,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:03,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:04,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:05,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:05,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:07,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:07,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:44:07,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:44:07,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 19:44:07,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:44:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:44:07,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 19:44:07,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:13,755 WARN L193 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-12 19:44:13,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:13,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:13,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:13,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:13,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:13,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 19:44:13,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:44:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:44:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:13,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:44:13,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229483736] [2020-10-12 19:44:13,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:13,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:44:13,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022095936] [2020-10-12 19:44:13,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:44:13,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:13,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:44:13,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:44:13,970 INFO L87 Difference]: Start difference. First operand 3857 states and 5113 transitions. Second operand 11 states. [2020-10-12 19:44:19,309 WARN L193 SmtUtils]: Spent 5.17 s on a formula simplification that was a NOOP. DAG size: 1067 [2020-10-12 19:44:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:45,265 INFO L93 Difference]: Finished difference Result 8425 states and 11507 transitions. [2020-10-12 19:44:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 19:44:45,265 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2020-10-12 19:44:45,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:45,290 INFO L225 Difference]: With dead ends: 8425 [2020-10-12 19:44:45,290 INFO L226 Difference]: Without dead ends: 6700 [2020-10-12 19:44:45,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2020-10-12 19:44:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6700 states. [2020-10-12 19:44:45,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6700 to 2839. [2020-10-12 19:44:45,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2839 states. [2020-10-12 19:44:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 3701 transitions. [2020-10-12 19:44:45,504 INFO L78 Accepts]: Start accepts. Automaton has 2839 states and 3701 transitions. Word has length 91 [2020-10-12 19:44:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:45,504 INFO L479 AbstractCegarLoop]: Abstraction has 2839 states and 3701 transitions. [2020-10-12 19:44:45,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:44:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2839 states and 3701 transitions. [2020-10-12 19:44:45,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:44:45,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:45,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:44:45,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:44:45,517 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:45,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:45,517 INFO L82 PathProgramCache]: Analyzing trace with hash -175809450, now seen corresponding path program 1 times [2020-10-12 19:44:45,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:45,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414635458] [2020-10-12 19:44:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:45,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:45,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:45,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:45,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:46,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:47,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:47,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:47,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:48,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:50,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:50,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:50,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:50,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:44:50,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:44:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-12 19:44:50,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:44:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:44:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:44:50,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:56,067 WARN L193 SmtUtils]: Spent 5.00 s on a formula simplification that was a NOOP. DAG size: 1054 [2020-10-12 19:44:56,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:56,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:56,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:56,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:56,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 19:44:56,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:44:56,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414635458] [2020-10-12 19:44:56,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:56,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:44:56,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812990336] [2020-10-12 19:44:56,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:44:56,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:56,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:44:56,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:44:56,187 INFO L87 Difference]: Start difference. First operand 2839 states and 3701 transitions. Second operand 12 states. [2020-10-12 19:45:06,991 WARN L193 SmtUtils]: Spent 10.58 s on a formula simplification. DAG size of input: 1083 DAG size of output: 1077