/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_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:14:39,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:14:39,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:14:39,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:14:39,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:14:39,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:14:39,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:14:39,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:14:39,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:14:39,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:14:39,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:14:39,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:14:39,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:14:39,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:14:39,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:14:39,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:14:39,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:14:39,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:14:39,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:14:39,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:14:39,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:14:39,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:14:39,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:14:39,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:14:39,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:14:39,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:14:39,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:14:39,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:14:39,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:14:39,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:14:39,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:14:39,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:14:39,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:14:39,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:14:39,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:14:39,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:14:39,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:14:39,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:14:39,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:14:39,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:14:39,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:14:39,648 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 14:14:39,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:14:39,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:14:39,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:14:39,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:14:39,677 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:14:39,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:14:39,677 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:14:39,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:14:39,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:14:39,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:14:39,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:14:39,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:14:39,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:14:39,678 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:14:39,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:14:39,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:14:39,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:14:39,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:14:39,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:14:39,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:14:39,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:14:39,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:14:39,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:14:39,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:14:39,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:14:39,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:14:39,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:14:39,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:14:39,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:14:39,681 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 14:14:40,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:14:40,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:14:40,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:14:40,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:14:40,043 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:14:40,044 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:14:40,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33d79a2c2/1b2544d688df47118644b98814f1a543/FLAG961034376 [2020-10-13 14:14:40,622 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:14:40,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:14:40,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33d79a2c2/1b2544d688df47118644b98814f1a543/FLAG961034376 [2020-10-13 14:14:40,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33d79a2c2/1b2544d688df47118644b98814f1a543 [2020-10-13 14:14:40,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:14:40,947 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:14:40,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:14:40,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:14:40,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:14:40,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:14:40" (1/1) ... [2020-10-13 14:14:40,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1be1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:40, skipping insertion in model container [2020-10-13 14:14:40,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:14:40" (1/1) ... [2020-10-13 14:14:40,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:14:41,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:14:41,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:14:41,641 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:14:42,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:14:42,030 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:14:42,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42 WrapperNode [2020-10-13 14:14:42,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:14:42,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:14:42,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:14:42,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:14:42,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (1/1) ... [2020-10-13 14:14:42,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (1/1) ... [2020-10-13 14:14:42,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (1/1) ... [2020-10-13 14:14:42,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (1/1) ... [2020-10-13 14:14:42,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (1/1) ... [2020-10-13 14:14:42,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (1/1) ... [2020-10-13 14:14:42,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (1/1) ... [2020-10-13 14:14:42,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:14:42,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:14:42,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:14:42,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:14:42,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (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 14:14:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:14:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:14:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:14:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:14:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:14:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:14:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:14:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 14:14:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:14:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:14:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:14:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:14:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:14:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:14:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:14:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:14:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 14:14:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:14:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:14:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:14:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:14:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:14:43,526 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:14:43,527 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:14:43,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:14:43 BoogieIcfgContainer [2020-10-13 14:14:43,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:14:43,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:14:43,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:14:43,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:14:43,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:14:40" (1/3) ... [2020-10-13 14:14:43,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f2c464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:14:43, skipping insertion in model container [2020-10-13 14:14:43,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:14:42" (2/3) ... [2020-10-13 14:14:43,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f2c464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:14:43, skipping insertion in model container [2020-10-13 14:14:43,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:14:43" (3/3) ... [2020-10-13 14:14:43,542 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:14:43,552 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:14:43,559 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-13 14:14:43,573 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-13 14:14:43,602 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:14:43,602 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:14:43,602 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:14:43,603 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:14:43,603 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:14:43,603 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:14:43,603 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:14:43,603 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:14:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-13 14:14:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-13 14:14:43,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:14:43,646 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] [2020-10-13 14:14:43,647 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:14:43,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:14:43,656 INFO L82 PathProgramCache]: Analyzing trace with hash -724467118, now seen corresponding path program 1 times [2020-10-13 14:14:43,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:14:43,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474521189] [2020-10-13 14:14:43,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:14:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:14:44,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:44,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:44,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:44,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:44,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:45,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:46,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:47,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:49,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:14:49,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 14:14:49,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 14:14:49,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-13 14:14:49,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:14:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:14:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:14:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 14:14:49,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-13 14:14:49,618 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:14:49,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:14:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:14:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:49,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:14:49,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:14:49,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:14:49,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 14:14:49,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:14:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:14:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:14:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:14:49,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:14:49,678 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 14:14:49,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474521189] [2020-10-13 14:14:49,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:14:49,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:14:49,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684950182] [2020-10-13 14:14:49,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:14:49,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:14:49,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:14:49,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:14:49,705 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 7 states. [2020-10-13 14:14:50,077 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-13 14:14:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:14:53,097 INFO L93 Difference]: Finished difference Result 1301 states and 2117 transitions. [2020-10-13 14:14:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:14:53,100 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-13 14:14:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:14:53,125 INFO L225 Difference]: With dead ends: 1301 [2020-10-13 14:14:53,125 INFO L226 Difference]: Without dead ends: 1050 [2020-10-13 14:14:53,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:14:53,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2020-10-13 14:14:53,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 566. [2020-10-13 14:14:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-10-13 14:14:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 760 transitions. [2020-10-13 14:14:53,243 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 760 transitions. Word has length 62 [2020-10-13 14:14:53,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:14:53,243 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 760 transitions. [2020-10-13 14:14:53,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:14:53,244 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 760 transitions. [2020-10-13 14:14:53,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 14:14:53,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:14:53,248 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] [2020-10-13 14:14:53,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:14:53,249 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:14:53,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:14:53,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1097945019, now seen corresponding path program 1 times [2020-10-13 14:14:53,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:14:53,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256563517] [2020-10-13 14:14:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:14:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:14:53,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:53,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:53,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:53,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:53,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:54,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:54,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:54,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:54,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:55,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:55,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:55,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:58,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:14:58,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 14:14:58,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:14:58,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 14:14:58,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:14:58,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:14:58,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 14:14:58,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 14:14:58,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:14:58,705 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:14:58,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:14:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:14:58,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:14:58,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:14:58,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:14:58,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:14:58,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:14:58,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:14:58,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:14:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:14:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:14:58,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:14:58,739 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 14:14:58,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256563517] [2020-10-13 14:14:58,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:14:58,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:14:58,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377276526] [2020-10-13 14:14:58,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:14:58,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:14:58,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:14:58,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:14:58,743 INFO L87 Difference]: Start difference. First operand 566 states and 760 transitions. Second operand 9 states. [2020-10-13 14:14:59,062 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-13 14:15:01,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:01,021 INFO L93 Difference]: Finished difference Result 1726 states and 2504 transitions. [2020-10-13 14:15:01,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 14:15:01,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-13 14:15:01,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:01,032 INFO L225 Difference]: With dead ends: 1726 [2020-10-13 14:15:01,032 INFO L226 Difference]: Without dead ends: 1445 [2020-10-13 14:15:01,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-13 14:15:01,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2020-10-13 14:15:01,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 580. [2020-10-13 14:15:01,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-10-13 14:15:01,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 773 transitions. [2020-10-13 14:15:01,093 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 773 transitions. Word has length 63 [2020-10-13 14:15:01,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:01,094 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 773 transitions. [2020-10-13 14:15:01,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:15:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 773 transitions. [2020-10-13 14:15:01,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 14:15:01,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:01,098 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] [2020-10-13 14:15:01,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:15:01,099 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:01,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:01,099 INFO L82 PathProgramCache]: Analyzing trace with hash 799173010, now seen corresponding path program 1 times [2020-10-13 14:15:01,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:01,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955433776] [2020-10-13 14:15:01,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:01,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:01,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:01,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:01,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:01,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:01,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:02,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:02,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:03,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:06,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:06,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 14:15:06,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 14:15:06,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 14:15:06,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:06,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:15:06,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:15:06,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 14:15:06,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:06,421 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:15:06,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:15:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:06,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:06,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:06,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:15:06,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:15:06,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:15:06,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:06,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:15:06,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:15:06,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:15:06,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:06,452 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 14:15:06,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955433776] [2020-10-13 14:15:06,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:15:06,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:15:06,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323299104] [2020-10-13 14:15:06,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:15:06,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:15:06,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:15:06,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:15:06,455 INFO L87 Difference]: Start difference. First operand 580 states and 773 transitions. Second operand 7 states. [2020-10-13 14:15:06,740 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-13 14:15:08,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:08,409 INFO L93 Difference]: Finished difference Result 2167 states and 3015 transitions. [2020-10-13 14:15:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:15:08,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-13 14:15:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:08,419 INFO L225 Difference]: With dead ends: 2167 [2020-10-13 14:15:08,419 INFO L226 Difference]: Without dead ends: 1876 [2020-10-13 14:15:08,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:15:08,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2020-10-13 14:15:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 879. [2020-10-13 14:15:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-13 14:15:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1222 transitions. [2020-10-13 14:15:08,482 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1222 transitions. Word has length 63 [2020-10-13 14:15:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:08,484 INFO L479 AbstractCegarLoop]: Abstraction has 879 states and 1222 transitions. [2020-10-13 14:15:08,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:15:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1222 transitions. [2020-10-13 14:15:08,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 14:15:08,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:08,486 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] [2020-10-13 14:15:08,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:15:08,487 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:08,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:08,487 INFO L82 PathProgramCache]: Analyzing trace with hash -373542484, now seen corresponding path program 1 times [2020-10-13 14:15:08,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:08,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842530811] [2020-10-13 14:15:08,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:08,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:08,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:08,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:08,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:08,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:08,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:12,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:12,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:12,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:12,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:12,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:12,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:13,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:13,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 14:15:13,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:15:13,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:15:13,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:15:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:15:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 14:15:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:15:13,854 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:15:13,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:15:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:13,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:13,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:13,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:15:13,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:15:13,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:15:13,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:13,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:15:13,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:15:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:15:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:13,886 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 14:15:13,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842530811] [2020-10-13 14:15:13,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:15:13,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:15:13,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827148319] [2020-10-13 14:15:13,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:15:13,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:15:13,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:15:13,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:15:13,889 INFO L87 Difference]: Start difference. First operand 879 states and 1222 transitions. Second operand 7 states. [2020-10-13 14:15:14,156 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-13 14:15:16,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:16,056 INFO L93 Difference]: Finished difference Result 3818 states and 5513 transitions. [2020-10-13 14:15:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:15:16,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-13 14:15:16,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:16,074 INFO L225 Difference]: With dead ends: 3818 [2020-10-13 14:15:16,074 INFO L226 Difference]: Without dead ends: 3294 [2020-10-13 14:15:16,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:15:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2020-10-13 14:15:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 1529. [2020-10-13 14:15:16,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1529 states. [2020-10-13 14:15:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2200 transitions. [2020-10-13 14:15:16,177 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2200 transitions. Word has length 63 [2020-10-13 14:15:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:16,177 INFO L479 AbstractCegarLoop]: Abstraction has 1529 states and 2200 transitions. [2020-10-13 14:15:16,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:15:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2200 transitions. [2020-10-13 14:15:16,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-13 14:15:16,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:16,180 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] [2020-10-13 14:15:16,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:15:16,181 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:16,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:16,181 INFO L82 PathProgramCache]: Analyzing trace with hash 882622461, now seen corresponding path program 1 times [2020-10-13 14:15:16,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:16,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789476006] [2020-10-13 14:15:16,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:16,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:16,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:16,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:16,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:18,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:18,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:18,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:18,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:19,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:20,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:20,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:20,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:20,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:21,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:21,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:21,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 14:15:21,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:15:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 14:15:21,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:15:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:15:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 14:15:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:21,554 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:15:21,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:15:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:21,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:21,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:21,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:15:21,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:15:21,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 14:15:21,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:21,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:15:21,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:15:21,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:15:21,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 14:15:21,629 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 14:15:21,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789476006] [2020-10-13 14:15:21,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:15:21,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:15:21,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143068952] [2020-10-13 14:15:21,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:15:21,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:15:21,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:15:21,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:15:21,633 INFO L87 Difference]: Start difference. First operand 1529 states and 2200 transitions. Second operand 7 states. [2020-10-13 14:15:22,024 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-13 14:15:23,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:23,987 INFO L93 Difference]: Finished difference Result 4620 states and 6731 transitions. [2020-10-13 14:15:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:15:23,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-13 14:15:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:24,015 INFO L225 Difference]: With dead ends: 4620 [2020-10-13 14:15:24,016 INFO L226 Difference]: Without dead ends: 3960 [2020-10-13 14:15:24,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:15:24,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2020-10-13 14:15:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 1933. [2020-10-13 14:15:24,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1933 states. [2020-10-13 14:15:24,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2802 transitions. [2020-10-13 14:15:24,178 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2802 transitions. Word has length 64 [2020-10-13 14:15:24,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:24,178 INFO L479 AbstractCegarLoop]: Abstraction has 1933 states and 2802 transitions. [2020-10-13 14:15:24,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:15:24,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2802 transitions. [2020-10-13 14:15:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-13 14:15:24,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:24,181 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] [2020-10-13 14:15:24,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:15:24,182 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:24,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:24,182 INFO L82 PathProgramCache]: Analyzing trace with hash 2055337955, now seen corresponding path program 1 times [2020-10-13 14:15:24,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:24,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776120204] [2020-10-13 14:15:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:24,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:24,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:24,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:24,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:24,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:25,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:25,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:25,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:26,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:26,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:26,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:26,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:29,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:29,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 14:15:29,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:15:29,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 14:15:29,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:15:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:15:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 14:15:29,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:29,555 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:15:29,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:15:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:29,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:29,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:29,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:15:29,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:15:29,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 14:15:29,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:29,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:15:29,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:15:29,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:15:29,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:29,598 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 14:15:29,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776120204] [2020-10-13 14:15:29,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:15:29,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:15:29,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455969889] [2020-10-13 14:15:29,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:15:29,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:15:29,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:15:29,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:15:29,603 INFO L87 Difference]: Start difference. First operand 1933 states and 2802 transitions. Second operand 7 states. [2020-10-13 14:15:29,875 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-13 14:15:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:31,576 INFO L93 Difference]: Finished difference Result 4993 states and 7296 transitions. [2020-10-13 14:15:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:15:31,576 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-13 14:15:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:31,596 INFO L225 Difference]: With dead ends: 4993 [2020-10-13 14:15:31,596 INFO L226 Difference]: Without dead ends: 4354 [2020-10-13 14:15:31,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:15:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2020-10-13 14:15:31,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 2216. [2020-10-13 14:15:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2020-10-13 14:15:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3231 transitions. [2020-10-13 14:15:31,759 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3231 transitions. Word has length 64 [2020-10-13 14:15:31,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:31,759 INFO L479 AbstractCegarLoop]: Abstraction has 2216 states and 3231 transitions. [2020-10-13 14:15:31,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:15:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3231 transitions. [2020-10-13 14:15:31,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-13 14:15:31,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:31,762 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] [2020-10-13 14:15:31,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:15:31,762 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:31,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:31,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1201015404, now seen corresponding path program 1 times [2020-10-13 14:15:31,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:31,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584325497] [2020-10-13 14:15:31,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:31,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:31,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:31,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:31,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:32,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:32,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:32,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:32,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:32,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:33,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:33,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:33,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:36,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:36,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 14:15:36,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:15:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 14:15:36,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:15:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:15:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 14:15:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:37,077 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:15:37,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:15:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:37,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:37,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:37,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:15:37,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:15:37,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:15:37,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:15:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:15:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:15:37,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:37,136 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 14:15:37,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584325497] [2020-10-13 14:15:37,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:15:37,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:15:37,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754267445] [2020-10-13 14:15:37,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:15:37,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:15:37,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:15:37,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:15:37,138 INFO L87 Difference]: Start difference. First operand 2216 states and 3231 transitions. Second operand 7 states. [2020-10-13 14:15:37,400 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-13 14:15:39,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:39,235 INFO L93 Difference]: Finished difference Result 5373 states and 7883 transitions. [2020-10-13 14:15:39,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:15:39,236 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-13 14:15:39,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:39,254 INFO L225 Difference]: With dead ends: 5373 [2020-10-13 14:15:39,254 INFO L226 Difference]: Without dead ends: 4149 [2020-10-13 14:15:39,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:15:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2020-10-13 14:15:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 1980. [2020-10-13 14:15:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1980 states. [2020-10-13 14:15:39,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2876 transitions. [2020-10-13 14:15:39,407 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2876 transitions. Word has length 64 [2020-10-13 14:15:39,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:39,408 INFO L479 AbstractCegarLoop]: Abstraction has 1980 states and 2876 transitions. [2020-10-13 14:15:39,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:15:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2876 transitions. [2020-10-13 14:15:39,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 14:15:39,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:39,411 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] [2020-10-13 14:15:39,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 14:15:39,412 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:39,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:39,412 INFO L82 PathProgramCache]: Analyzing trace with hash 154493670, now seen corresponding path program 1 times [2020-10-13 14:15:39,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:39,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165201697] [2020-10-13 14:15:39,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:39,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:39,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:39,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:39,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:39,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:41,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:41,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:41,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:41,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:42,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:42,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:42,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:42,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:42,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:43,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:43,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:43,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:43,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:44,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:44,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:44,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:44,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 14:15:44,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-13 14:15:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-13 14:15:44,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:15:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:15:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 14:15:44,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:44,711 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:15:44,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:15:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:44,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:44,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:44,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:15:44,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:15:44,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:15:44,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:44,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:15:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:15:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:15:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:44,746 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 14:15:44,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165201697] [2020-10-13 14:15:44,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:15:44,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:15:44,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098289603] [2020-10-13 14:15:44,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:15:44,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:15:44,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:15:44,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:15:44,748 INFO L87 Difference]: Start difference. First operand 1980 states and 2876 transitions. Second operand 6 states. [2020-10-13 14:15:45,000 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 14:15:46,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:46,077 INFO L93 Difference]: Finished difference Result 2659 states and 3847 transitions. [2020-10-13 14:15:46,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:15:46,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-13 14:15:46,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:46,084 INFO L225 Difference]: With dead ends: 2659 [2020-10-13 14:15:46,085 INFO L226 Difference]: Without dead ends: 1951 [2020-10-13 14:15:46,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:15:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2020-10-13 14:15:46,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1057. [2020-10-13 14:15:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-10-13 14:15:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1504 transitions. [2020-10-13 14:15:46,175 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1504 transitions. Word has length 65 [2020-10-13 14:15:46,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:46,176 INFO L479 AbstractCegarLoop]: Abstraction has 1057 states and 1504 transitions. [2020-10-13 14:15:46,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:15:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1504 transitions. [2020-10-13 14:15:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 14:15:46,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:46,178 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] [2020-10-13 14:15:46,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 14:15:46,178 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:46,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:46,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1097208063, now seen corresponding path program 1 times [2020-10-13 14:15:46,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:46,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59920788] [2020-10-13 14:15:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:46,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:46,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:46,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:47,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:47,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:47,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:47,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:47,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:47,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:49,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:49,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:49,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:50,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:51,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:51,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 14:15:51,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 14:15:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:15:51,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:15:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:15:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 14:15:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:51,446 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:15:51,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:15:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:51,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:51,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:51,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:15:51,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:15:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:15:51,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:15:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:15:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:15:51,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:51,480 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 14:15:51,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59920788] [2020-10-13 14:15:51,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:15:51,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:15:51,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976679981] [2020-10-13 14:15:51,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:15:51,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:15:51,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:15:51,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:15:51,482 INFO L87 Difference]: Start difference. First operand 1057 states and 1504 transitions. Second operand 6 states. [2020-10-13 14:15:51,740 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 14:15:52,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:52,728 INFO L93 Difference]: Finished difference Result 1544 states and 2193 transitions. [2020-10-13 14:15:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:15:52,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-13 14:15:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:52,732 INFO L225 Difference]: With dead ends: 1544 [2020-10-13 14:15:52,732 INFO L226 Difference]: Without dead ends: 895 [2020-10-13 14:15:52,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:15:52,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2020-10-13 14:15:52,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 654. [2020-10-13 14:15:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2020-10-13 14:15:52,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 911 transitions. [2020-10-13 14:15:52,790 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 911 transitions. Word has length 65 [2020-10-13 14:15:52,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:52,791 INFO L479 AbstractCegarLoop]: Abstraction has 654 states and 911 transitions. [2020-10-13 14:15:52,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:15:52,791 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 911 transitions. [2020-10-13 14:15:52,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 14:15:52,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:52,793 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] [2020-10-13 14:15:52,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 14:15:52,793 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:52,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:52,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1472359967, now seen corresponding path program 1 times [2020-10-13 14:15:52,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:52,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618330780] [2020-10-13 14:15:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:52,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:52,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:52,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:53,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:53,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:53,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:53,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:55,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:55,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:57,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:57,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 14:15:57,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:15:57,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:15:57,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:57,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:15:57,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:15:57,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 14:15:57,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:58,054 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:15:58,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:15:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:58,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:58,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:15:58,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:15:58,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:15:58,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:15:58,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:15:58,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:15:58,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:15:58,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:15:58,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:15:58,083 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 14:15:58,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618330780] [2020-10-13 14:15:58,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:15:58,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:15:58,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802159666] [2020-10-13 14:15:58,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:15:58,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:15:58,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:15:58,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:15:58,086 INFO L87 Difference]: Start difference. First operand 654 states and 911 transitions. Second operand 6 states. [2020-10-13 14:15:58,356 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 14:15:59,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:15:59,299 INFO L93 Difference]: Finished difference Result 959 states and 1329 transitions. [2020-10-13 14:15:59,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:15:59,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-13 14:15:59,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:15:59,302 INFO L225 Difference]: With dead ends: 959 [2020-10-13 14:15:59,302 INFO L226 Difference]: Without dead ends: 552 [2020-10-13 14:15:59,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:15:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-10-13 14:15:59,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 401. [2020-10-13 14:15:59,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-10-13 14:15:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 536 transitions. [2020-10-13 14:15:59,357 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 536 transitions. Word has length 65 [2020-10-13 14:15:59,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:15:59,357 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 536 transitions. [2020-10-13 14:15:59,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:15:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 536 transitions. [2020-10-13 14:15:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 14:15:59,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:15:59,359 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] [2020-10-13 14:15:59,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 14:15:59,359 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:15:59,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:15:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash 643929185, now seen corresponding path program 1 times [2020-10-13 14:15:59,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:15:59,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698723754] [2020-10-13 14:15:59,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:15:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:15:59,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:59,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:59,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:15:59,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:00,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:00,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:00,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:01,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:02,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:04,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:04,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:04,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 14:16:04,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:16:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 14:16:04,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:16:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 14:16:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 14:16:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:04,687 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:16:04,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:04,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:04,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:04,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:04,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:16:04,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:16:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:16:04,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:04,717 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 14:16:04,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698723754] [2020-10-13 14:16:04,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:04,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:16:04,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677722402] [2020-10-13 14:16:04,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:16:04,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:04,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:16:04,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:16:04,720 INFO L87 Difference]: Start difference. First operand 401 states and 536 transitions. Second operand 9 states. [2020-10-13 14:16:04,980 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-13 14:16:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:16:06,209 INFO L93 Difference]: Finished difference Result 743 states and 1021 transitions. [2020-10-13 14:16:06,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 14:16:06,209 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-13 14:16:06,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:16:06,212 INFO L225 Difference]: With dead ends: 743 [2020-10-13 14:16:06,212 INFO L226 Difference]: Without dead ends: 609 [2020-10-13 14:16:06,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-13 14:16:06,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-10-13 14:16:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 407. [2020-10-13 14:16:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-13 14:16:06,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 544 transitions. [2020-10-13 14:16:06,249 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 544 transitions. Word has length 65 [2020-10-13 14:16:06,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:16:06,249 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 544 transitions. [2020-10-13 14:16:06,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:16:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 544 transitions. [2020-10-13 14:16:06,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 14:16:06,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:06,250 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] [2020-10-13 14:16:06,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 14:16:06,250 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:06,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:06,250 INFO L82 PathProgramCache]: Analyzing trace with hash 258881024, now seen corresponding path program 1 times [2020-10-13 14:16:06,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:06,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038521917] [2020-10-13 14:16:06,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:06,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:06,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:06,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:06,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:06,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:07,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:07,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:07,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:08,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:08,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:10,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:10,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:11,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:11,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:11,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 14:16:11,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:16:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 14:16:11,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:16:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:16:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 14:16:11,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:11,545 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:16:11,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:11,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:11,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:11,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:11,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:11,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 14:16:11,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:16:11,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:11,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:16:11,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:11,585 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 14:16:11,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038521917] [2020-10-13 14:16:11,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:11,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:16:11,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554991525] [2020-10-13 14:16:11,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:16:11,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:11,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:16:11,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:16:11,588 INFO L87 Difference]: Start difference. First operand 407 states and 544 transitions. Second operand 6 states. [2020-10-13 14:16:11,855 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 14:16:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:16:12,829 INFO L93 Difference]: Finished difference Result 645 states and 839 transitions. [2020-10-13 14:16:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:16:12,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-13 14:16:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:16:12,831 INFO L225 Difference]: With dead ends: 645 [2020-10-13 14:16:12,831 INFO L226 Difference]: Without dead ends: 376 [2020-10-13 14:16:12,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:16:12,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-10-13 14:16:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 346. [2020-10-13 14:16:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 14:16:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 455 transitions. [2020-10-13 14:16:12,873 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 455 transitions. Word has length 65 [2020-10-13 14:16:12,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:16:12,873 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 455 transitions. [2020-10-13 14:16:12,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:16:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 455 transitions. [2020-10-13 14:16:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 14:16:12,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:12,875 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] [2020-10-13 14:16:12,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 14:16:12,875 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:12,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:12,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1137240594, now seen corresponding path program 1 times [2020-10-13 14:16:12,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:12,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439273495] [2020-10-13 14:16:12,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:12,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:12,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:13,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:13,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:14,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:16,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:16,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:17,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:17,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:17,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:17,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:17,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:17,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 14:16:17,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:16:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:16:17,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:16:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:16:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 14:16:17,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:18,166 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:16:18,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:18,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:18,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:18,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:18,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:18,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:16:18,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:16:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:16:18,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:18,193 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 14:16:18,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439273495] [2020-10-13 14:16:18,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:18,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:16:18,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897180469] [2020-10-13 14:16:18,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:16:18,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:18,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:16:18,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:16:18,195 INFO L87 Difference]: Start difference. First operand 346 states and 455 transitions. Second operand 7 states. [2020-10-13 14:16:18,480 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-13 14:16:19,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:16:19,560 INFO L93 Difference]: Finished difference Result 717 states and 948 transitions. [2020-10-13 14:16:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 14:16:19,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2020-10-13 14:16:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:16:19,563 INFO L225 Difference]: With dead ends: 717 [2020-10-13 14:16:19,563 INFO L226 Difference]: Without dead ends: 511 [2020-10-13 14:16:19,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:16:19,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-10-13 14:16:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 346. [2020-10-13 14:16:19,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 14:16:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 454 transitions. [2020-10-13 14:16:19,610 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 454 transitions. Word has length 66 [2020-10-13 14:16:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:16:19,611 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 454 transitions. [2020-10-13 14:16:19,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:16:19,611 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 454 transitions. [2020-10-13 14:16:19,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 14:16:19,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:19,612 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] [2020-10-13 14:16:19,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 14:16:19,613 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:19,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:19,613 INFO L82 PathProgramCache]: Analyzing trace with hash -796424796, now seen corresponding path program 1 times [2020-10-13 14:16:19,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:19,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678260435] [2020-10-13 14:16:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:19,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:19,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:19,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:19,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:19,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:20,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:20,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:20,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:20,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:20,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:20,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:21,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:21,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:21,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:22,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:22,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:23,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:23,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:24,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:24,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:24,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 14:16:24,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-13 14:16:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:16:24,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:16:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:16:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 14:16:24,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:24,993 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:16:24,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:25,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:25,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:25,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:25,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:16:25,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:16:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:16:25,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:25,025 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 14:16:25,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678260435] [2020-10-13 14:16:25,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:25,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:16:25,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362105172] [2020-10-13 14:16:25,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:16:25,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:25,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:16:25,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:16:25,027 INFO L87 Difference]: Start difference. First operand 346 states and 454 transitions. Second operand 11 states. [2020-10-13 14:16:25,358 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-13 14:16:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:16:27,409 INFO L93 Difference]: Finished difference Result 796 states and 1096 transitions. [2020-10-13 14:16:27,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:16:27,409 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 66 [2020-10-13 14:16:27,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:16:27,412 INFO L225 Difference]: With dead ends: 796 [2020-10-13 14:16:27,412 INFO L226 Difference]: Without dead ends: 682 [2020-10-13 14:16:27,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2020-10-13 14:16:27,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-10-13 14:16:27,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 346. [2020-10-13 14:16:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 14:16:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 453 transitions. [2020-10-13 14:16:27,449 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 453 transitions. Word has length 66 [2020-10-13 14:16:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:16:27,449 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 453 transitions. [2020-10-13 14:16:27,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:16:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 453 transitions. [2020-10-13 14:16:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 14:16:27,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:27,450 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] [2020-10-13 14:16:27,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 14:16:27,450 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:27,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:27,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1240380916, now seen corresponding path program 1 times [2020-10-13 14:16:27,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:27,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063285572] [2020-10-13 14:16:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:27,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:27,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:27,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:27,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:27,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:27,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:27,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:28,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:28,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:30,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:30,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:30,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:30,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:30,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:31,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:32,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:32,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 14:16:32,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 14:16:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:16:32,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 14:16:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:16:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 14:16:32,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:32,813 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:16:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:32,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:32,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:32,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:32,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:32,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:16:32,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:16:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:16:32,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:32,837 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 14:16:32,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063285572] [2020-10-13 14:16:32,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:32,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 14:16:32,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669516168] [2020-10-13 14:16:32,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 14:16:32,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:32,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 14:16:32,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-13 14:16:32,839 INFO L87 Difference]: Start difference. First operand 346 states and 453 transitions. Second operand 10 states. [2020-10-13 14:16:33,197 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-13 14:16:35,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:16:35,063 INFO L93 Difference]: Finished difference Result 893 states and 1234 transitions. [2020-10-13 14:16:35,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 14:16:35,063 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-10-13 14:16:35,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:16:35,067 INFO L225 Difference]: With dead ends: 893 [2020-10-13 14:16:35,067 INFO L226 Difference]: Without dead ends: 757 [2020-10-13 14:16:35,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2020-10-13 14:16:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2020-10-13 14:16:35,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 346. [2020-10-13 14:16:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 14:16:35,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 452 transitions. [2020-10-13 14:16:35,118 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 452 transitions. Word has length 66 [2020-10-13 14:16:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:16:35,119 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 452 transitions. [2020-10-13 14:16:35,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 14:16:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 452 transitions. [2020-10-13 14:16:35,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:16:35,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:35,120 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] [2020-10-13 14:16:35,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 14:16:35,121 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:35,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:35,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1210826695, now seen corresponding path program 1 times [2020-10-13 14:16:35,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:35,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538212008] [2020-10-13 14:16:35,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:35,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:35,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:35,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:35,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:36,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:36,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:36,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:36,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:36,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:37,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:37,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:37,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:37,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:38,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:38,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:39,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:39,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:39,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:40,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:40,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:16:40,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-13 14:16:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:16:40,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:16:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:16:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 14:16:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:40,508 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:16:40,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:40,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:40,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:40,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:40,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:40,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:16:40,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:16:40,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:40,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:16:40,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:40,537 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 14:16:40,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538212008] [2020-10-13 14:16:40,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:40,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:16:40,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305551072] [2020-10-13 14:16:40,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:16:40,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:40,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:16:40,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:16:40,539 INFO L87 Difference]: Start difference. First operand 346 states and 452 transitions. Second operand 11 states. [2020-10-13 14:16:40,867 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-13 14:16:43,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:16:43,132 INFO L93 Difference]: Finished difference Result 886 states and 1215 transitions. [2020-10-13 14:16:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 14:16:43,133 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-10-13 14:16:43,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:16:43,136 INFO L225 Difference]: With dead ends: 886 [2020-10-13 14:16:43,136 INFO L226 Difference]: Without dead ends: 881 [2020-10-13 14:16:43,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2020-10-13 14:16:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-10-13 14:16:43,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 346. [2020-10-13 14:16:43,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 14:16:43,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 451 transitions. [2020-10-13 14:16:43,177 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 451 transitions. Word has length 68 [2020-10-13 14:16:43,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:16:43,177 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 451 transitions. [2020-10-13 14:16:43,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:16:43,178 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 451 transitions. [2020-10-13 14:16:43,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:16:43,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:43,178 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] [2020-10-13 14:16:43,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 14:16:43,179 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:43,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:43,179 INFO L82 PathProgramCache]: Analyzing trace with hash 825778534, now seen corresponding path program 1 times [2020-10-13 14:16:43,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:43,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700139245] [2020-10-13 14:16:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:43,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:43,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:43,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:43,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:43,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:43,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:43,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:43,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:44,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:44,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:44,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:45,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:48,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:48,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:16:48,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:16:48,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 14:16:48,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:48,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:16:48,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:16:48,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 14:16:48,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:48,534 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:16:48,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:48,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:48,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:48,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:48,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:48,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:16:48,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:48,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:16:48,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:48,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:16:48,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:48,555 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 14:16:48,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700139245] [2020-10-13 14:16:48,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:48,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:16:48,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349830508] [2020-10-13 14:16:48,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:16:48,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:48,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:16:48,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:16:48,556 INFO L87 Difference]: Start difference. First operand 346 states and 451 transitions. Second operand 11 states. [2020-10-13 14:16:48,943 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-13 14:16:51,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:16:51,805 INFO L93 Difference]: Finished difference Result 1145 states and 1583 transitions. [2020-10-13 14:16:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-13 14:16:51,805 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-10-13 14:16:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:16:51,808 INFO L225 Difference]: With dead ends: 1145 [2020-10-13 14:16:51,808 INFO L226 Difference]: Without dead ends: 1128 [2020-10-13 14:16:51,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=219, Invalid=903, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 14:16:51,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2020-10-13 14:16:51,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 346. [2020-10-13 14:16:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 14:16:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 450 transitions. [2020-10-13 14:16:51,872 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 450 transitions. Word has length 68 [2020-10-13 14:16:51,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:16:51,872 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 450 transitions. [2020-10-13 14:16:51,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:16:51,873 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 450 transitions. [2020-10-13 14:16:51,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:16:51,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:51,874 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] [2020-10-13 14:16:51,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 14:16:51,874 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:51,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:51,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1187022572, now seen corresponding path program 1 times [2020-10-13 14:16:51,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:51,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868802490] [2020-10-13 14:16:51,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:51,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:51,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:51,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:52,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:52,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:52,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:53,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:56,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:56,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:16:56,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:16:56,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:16:56,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:16:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:16:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 14:16:56,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:57,252 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:16:57,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:57,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:57,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:57,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:57,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:57,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:16:57,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:16:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:16:57,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:57,274 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 14:16:57,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868802490] [2020-10-13 14:16:57,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:57,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:16:57,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586931877] [2020-10-13 14:16:57,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:16:57,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:57,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:16:57,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:16:57,276 INFO L87 Difference]: Start difference. First operand 346 states and 450 transitions. Second operand 11 states. [2020-10-13 14:16:57,542 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-13 14:16:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:16:59,370 INFO L93 Difference]: Finished difference Result 925 states and 1267 transitions. [2020-10-13 14:16:59,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:16:59,370 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-10-13 14:16:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:16:59,372 INFO L225 Difference]: With dead ends: 925 [2020-10-13 14:16:59,372 INFO L226 Difference]: Without dead ends: 817 [2020-10-13 14:16:59,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2020-10-13 14:16:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-10-13 14:16:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 336. [2020-10-13 14:16:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-13 14:16:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 435 transitions. [2020-10-13 14:16:59,417 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 435 transitions. Word has length 68 [2020-10-13 14:16:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:16:59,417 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 435 transitions. [2020-10-13 14:16:59,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:16:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 435 transitions. [2020-10-13 14:16:59,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:16:59,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:59,418 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] [2020-10-13 14:16:59,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 14:16:59,419 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:59,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:59,419 INFO L82 PathProgramCache]: Analyzing trace with hash 189805918, now seen corresponding path program 1 times [2020-10-13 14:16:59,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:59,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745182119] [2020-10-13 14:16:59,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:59,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:59,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:59,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:00,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:00,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:00,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:02,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:02,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:03,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:04,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:04,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:17:04,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:17:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:17:04,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:17:04,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:17:04,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 14:17:04,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:04,798 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:17:04,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:04,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:04,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:04,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:04,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:17:04,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:04,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:04,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:04,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:04,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:04,822 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 14:17:04,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745182119] [2020-10-13 14:17:04,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:04,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:17:04,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800202596] [2020-10-13 14:17:04,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:17:04,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:04,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:17:04,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:17:04,823 INFO L87 Difference]: Start difference. First operand 336 states and 435 transitions. Second operand 11 states. [2020-10-13 14:17:05,121 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-13 14:17:08,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:08,911 INFO L93 Difference]: Finished difference Result 1633 states and 2295 transitions. [2020-10-13 14:17:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-13 14:17:08,911 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-10-13 14:17:08,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:08,915 INFO L225 Difference]: With dead ends: 1633 [2020-10-13 14:17:08,915 INFO L226 Difference]: Without dead ends: 1523 [2020-10-13 14:17:08,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 14:17:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-10-13 14:17:08,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 336. [2020-10-13 14:17:08,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-13 14:17:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 433 transitions. [2020-10-13 14:17:08,986 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 433 transitions. Word has length 68 [2020-10-13 14:17:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:08,986 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 433 transitions. [2020-10-13 14:17:08,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:17:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 433 transitions. [2020-10-13 14:17:08,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:17:08,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:08,987 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] [2020-10-13 14:17:08,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 14:17:08,988 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:08,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:08,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2118962430, now seen corresponding path program 1 times [2020-10-13 14:17:08,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:08,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424288066] [2020-10-13 14:17:08,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:09,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:09,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:09,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:09,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:09,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:09,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:10,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:14,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:17:14,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:17:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 14:17:14,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 14:17:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:17:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 14:17:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:14,347 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:17:14,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:14,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:14,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:14,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:14,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:17:14,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:14,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:14,369 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 14:17:14,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424288066] [2020-10-13 14:17:14,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:14,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 14:17:14,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014876994] [2020-10-13 14:17:14,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 14:17:14,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:14,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 14:17:14,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-13 14:17:14,371 INFO L87 Difference]: Start difference. First operand 336 states and 433 transitions. Second operand 10 states. [2020-10-13 14:17:14,623 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-13 14:17:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:15,908 INFO L93 Difference]: Finished difference Result 625 states and 828 transitions. [2020-10-13 14:17:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:15,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2020-10-13 14:17:15,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:15,910 INFO L225 Difference]: With dead ends: 625 [2020-10-13 14:17:15,910 INFO L226 Difference]: Without dead ends: 517 [2020-10-13 14:17:15,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-10-13 14:17:15,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2020-10-13 14:17:15,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 324. [2020-10-13 14:17:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-13 14:17:15,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 416 transitions. [2020-10-13 14:17:15,975 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 416 transitions. Word has length 68 [2020-10-13 14:17:15,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:15,975 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 416 transitions. [2020-10-13 14:17:15,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 14:17:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 416 transitions. [2020-10-13 14:17:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:17:15,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:15,976 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] [2020-10-13 14:17:15,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 14:17:15,976 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:15,976 INFO L82 PathProgramCache]: Analyzing trace with hash 301541682, now seen corresponding path program 1 times [2020-10-13 14:17:15,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:15,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502708470] [2020-10-13 14:17:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:16,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:16,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:16,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:16,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:17,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:19,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:19,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:19,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:19,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:20,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:20,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:20,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:20,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:17:20,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:17:20,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:17:20,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:17:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:17:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 14:17:20,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:21,435 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:17:21,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:21,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:21,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:21,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:21,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:17:21,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:21,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:17:21,482 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 14:17:21,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502708470] [2020-10-13 14:17:21,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:21,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:17:21,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071999202] [2020-10-13 14:17:21,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:17:21,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:21,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:17:21,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:17:21,486 INFO L87 Difference]: Start difference. First operand 324 states and 416 transitions. Second operand 11 states. [2020-10-13 14:17:21,997 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-13 14:17:24,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:24,725 INFO L93 Difference]: Finished difference Result 1443 states and 2020 transitions. [2020-10-13 14:17:24,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-13 14:17:24,725 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-10-13 14:17:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:24,728 INFO L225 Difference]: With dead ends: 1443 [2020-10-13 14:17:24,728 INFO L226 Difference]: Without dead ends: 1339 [2020-10-13 14:17:24,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=219, Invalid=903, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 14:17:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2020-10-13 14:17:24,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 324. [2020-10-13 14:17:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-13 14:17:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 415 transitions. [2020-10-13 14:17:24,789 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 415 transitions. Word has length 68 [2020-10-13 14:17:24,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:24,789 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 415 transitions. [2020-10-13 14:17:24,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:17:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 415 transitions. [2020-10-13 14:17:24,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 14:17:24,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:24,790 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] [2020-10-13 14:17:24,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 14:17:24,791 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:24,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:24,791 INFO L82 PathProgramCache]: Analyzing trace with hash -972332207, now seen corresponding path program 1 times [2020-10-13 14:17:24,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:24,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397113481] [2020-10-13 14:17:24,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:24,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:24,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:24,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:25,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:25,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:25,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:26,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:29,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:29,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 14:17:29,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:17:29,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 14:17:29,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:29,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 14:17:29,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:17:29,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 14:17:29,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:30,089 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:17:30,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:30,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:30,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:30,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:30,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:17:30,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:30,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:30,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:30,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:30,112 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 14:17:30,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397113481] [2020-10-13 14:17:30,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:30,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 14:17:30,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799676241] [2020-10-13 14:17:30,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 14:17:30,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:30,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 14:17:30,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:17:30,113 INFO L87 Difference]: Start difference. First operand 324 states and 415 transitions. Second operand 8 states. [2020-10-13 14:17:30,365 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 14:17:31,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:31,166 INFO L93 Difference]: Finished difference Result 564 states and 752 transitions. [2020-10-13 14:17:31,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 14:17:31,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-13 14:17:31,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:31,169 INFO L225 Difference]: With dead ends: 564 [2020-10-13 14:17:31,170 INFO L226 Difference]: Without dead ends: 388 [2020-10-13 14:17:31,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 14:17:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-13 14:17:31,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 250. [2020-10-13 14:17:31,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-13 14:17:31,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 320 transitions. [2020-10-13 14:17:31,245 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 320 transitions. Word has length 68 [2020-10-13 14:17:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:31,246 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 320 transitions. [2020-10-13 14:17:31,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 14:17:31,246 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 320 transitions. [2020-10-13 14:17:31,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-13 14:17:31,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:31,247 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] [2020-10-13 14:17:31,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 14:17:31,247 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:31,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:31,248 INFO L82 PathProgramCache]: Analyzing trace with hash 534421760, now seen corresponding path program 1 times [2020-10-13 14:17:31,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:31,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528669862] [2020-10-13 14:17:31,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:31,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:31,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:31,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:31,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:32,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:32,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:36,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:36,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 14:17:36,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:17:36,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:17:36,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:17:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 14:17:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-13 14:17:36,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:36,631 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:17:36,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:36,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:36,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:36,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:36,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:17:36,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:36,655 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 14:17:36,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528669862] [2020-10-13 14:17:36,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:36,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:17:36,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020632698] [2020-10-13 14:17:36,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:17:36,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:36,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:17:36,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:17:36,656 INFO L87 Difference]: Start difference. First operand 250 states and 320 transitions. Second operand 11 states. [2020-10-13 14:17:37,195 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-13 14:17:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:39,246 INFO L93 Difference]: Finished difference Result 825 states and 1126 transitions. [2020-10-13 14:17:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 14:17:39,246 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 69 [2020-10-13 14:17:39,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:39,248 INFO L225 Difference]: With dead ends: 825 [2020-10-13 14:17:39,248 INFO L226 Difference]: Without dead ends: 687 [2020-10-13 14:17:39,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-13 14:17:39,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2020-10-13 14:17:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 254. [2020-10-13 14:17:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-13 14:17:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 324 transitions. [2020-10-13 14:17:39,324 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 324 transitions. Word has length 69 [2020-10-13 14:17:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:39,324 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 324 transitions. [2020-10-13 14:17:39,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:17:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 324 transitions. [2020-10-13 14:17:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 14:17:39,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:39,326 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] [2020-10-13 14:17:39,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 14:17:39,326 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:39,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:39,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1330560829, now seen corresponding path program 1 times [2020-10-13 14:17:39,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:39,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339620356] [2020-10-13 14:17:39,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:39,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:39,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:39,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:39,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:39,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:40,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:42,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:42,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 14:17:42,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 14:17:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2980 [2020-10-13 14:17:42,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:17:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 14:17:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 14:17:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:42,660 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:17:42,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:42,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:42,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:42,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:42,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:42,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:17:42,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:42,684 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 14:17:42,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339620356] [2020-10-13 14:17:42,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:42,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:17:42,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343229215] [2020-10-13 14:17:42,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:17:42,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:42,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:17:42,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:17:42,685 INFO L87 Difference]: Start difference. First operand 254 states and 324 transitions. Second operand 11 states. [2020-10-13 14:17:42,945 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 14:17:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:44,580 INFO L93 Difference]: Finished difference Result 789 states and 1083 transitions. [2020-10-13 14:17:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:44,581 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-13 14:17:44,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:44,582 INFO L225 Difference]: With dead ends: 789 [2020-10-13 14:17:44,582 INFO L226 Difference]: Without dead ends: 654 [2020-10-13 14:17:44,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2020-10-13 14:17:44,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2020-10-13 14:17:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 256. [2020-10-13 14:17:44,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-13 14:17:44,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 327 transitions. [2020-10-13 14:17:44,635 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 327 transitions. Word has length 70 [2020-10-13 14:17:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:44,636 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 327 transitions. [2020-10-13 14:17:44,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:17:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 327 transitions. [2020-10-13 14:17:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 14:17:44,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:44,636 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] [2020-10-13 14:17:44,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 14:17:44,637 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:44,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:44,637 INFO L82 PathProgramCache]: Analyzing trace with hash -936229520, now seen corresponding path program 1 times [2020-10-13 14:17:44,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:44,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556504323] [2020-10-13 14:17:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:44,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:44,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:44,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:44,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:45,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:45,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:47,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:48,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:48,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:49,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:49,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 14:17:49,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:17:49,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:17:49,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:49,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 14:17:49,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:17:49,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 14:17:49,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:50,017 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:17:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:50,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:50,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:50,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:50,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:50,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:17:50,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:50,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:50,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:50,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:50,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:17:50,063 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 14:17:50,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556504323] [2020-10-13 14:17:50,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:50,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 14:17:50,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902773021] [2020-10-13 14:17:50,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 14:17:50,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:50,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 14:17:50,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:17:50,066 INFO L87 Difference]: Start difference. First operand 256 states and 327 transitions. Second operand 8 states. [2020-10-13 14:17:50,369 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 14:17:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:51,595 INFO L93 Difference]: Finished difference Result 552 states and 741 transitions. [2020-10-13 14:17:51,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:51,596 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-10-13 14:17:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:51,597 INFO L225 Difference]: With dead ends: 552 [2020-10-13 14:17:51,597 INFO L226 Difference]: Without dead ends: 414 [2020-10-13 14:17:51,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:17:51,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-10-13 14:17:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 256. [2020-10-13 14:17:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-13 14:17:51,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 326 transitions. [2020-10-13 14:17:51,675 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 326 transitions. Word has length 70 [2020-10-13 14:17:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:51,676 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 326 transitions. [2020-10-13 14:17:51,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 14:17:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 326 transitions. [2020-10-13 14:17:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 14:17:51,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:51,677 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] [2020-10-13 14:17:51,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 14:17:51,677 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:51,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:51,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1150977785, now seen corresponding path program 1 times [2020-10-13 14:17:51,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:51,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237824580] [2020-10-13 14:17:51,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:51,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:51,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:52,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:52,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:53,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 14:17:53,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 14:17:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1900 [2020-10-13 14:17:53,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:53,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 14:17:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 14:17:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 14:17:53,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:53,954 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:17:53,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:53,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:53,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:53,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:53,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 14:17:53,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:53,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:53,979 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 14:17:53,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237824580] [2020-10-13 14:17:53,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:53,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 14:17:53,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460543335] [2020-10-13 14:17:53,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 14:17:53,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:53,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 14:17:53,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 14:17:53,981 INFO L87 Difference]: Start difference. First operand 256 states and 326 transitions. Second operand 12 states. [2020-10-13 14:17:54,308 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-13 14:17:56,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:56,522 INFO L93 Difference]: Finished difference Result 720 states and 990 transitions. [2020-10-13 14:17:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:17:56,522 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-10-13 14:17:56,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:56,524 INFO L225 Difference]: With dead ends: 720 [2020-10-13 14:17:56,524 INFO L226 Difference]: Without dead ends: 600 [2020-10-13 14:17:56,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2020-10-13 14:17:56,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-10-13 14:17:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 256. [2020-10-13 14:17:56,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-13 14:17:56,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 325 transitions. [2020-10-13 14:17:56,572 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 325 transitions. Word has length 71 [2020-10-13 14:17:56,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:56,572 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 325 transitions. [2020-10-13 14:17:56,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 14:17:56,573 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 325 transitions. [2020-10-13 14:17:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 14:17:56,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:56,573 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] [2020-10-13 14:17:56,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 14:17:56,574 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:56,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:56,574 INFO L82 PathProgramCache]: Analyzing trace with hash -882525110, now seen corresponding path program 1 times [2020-10-13 14:17:56,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:56,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216008296] [2020-10-13 14:17:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:56,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:58,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:00,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:00,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 14:18:00,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:18:00,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3680 [2020-10-13 14:18:00,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:00,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:18:00,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:18:00,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 14:18:00,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:00,745 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:18:00,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:00,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:00,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:00,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:00,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:00,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:18:00,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:00,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:00,780 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 14:18:00,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216008296] [2020-10-13 14:18:00,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:00,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:18:00,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76293386] [2020-10-13 14:18:00,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:18:00,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:00,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:18:00,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:18:00,782 INFO L87 Difference]: Start difference. First operand 256 states and 325 transitions. Second operand 11 states. [2020-10-13 14:18:01,505 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 226 [2020-10-13 14:18:03,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:03,083 INFO L93 Difference]: Finished difference Result 479 states and 633 transitions. [2020-10-13 14:18:03,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 14:18:03,084 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-13 14:18:03,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:03,086 INFO L225 Difference]: With dead ends: 479 [2020-10-13 14:18:03,086 INFO L226 Difference]: Without dead ends: 472 [2020-10-13 14:18:03,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2020-10-13 14:18:03,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-10-13 14:18:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 256. [2020-10-13 14:18:03,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-13 14:18:03,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 324 transitions. [2020-10-13 14:18:03,141 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 324 transitions. Word has length 71 [2020-10-13 14:18:03,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:03,141 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 324 transitions. [2020-10-13 14:18:03,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:18:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 324 transitions. [2020-10-13 14:18:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 14:18:03,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:03,142 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] [2020-10-13 14:18:03,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 14:18:03,142 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:03,142 INFO L82 PathProgramCache]: Analyzing trace with hash 323889747, now seen corresponding path program 1 times [2020-10-13 14:18:03,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:03,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116135036] [2020-10-13 14:18:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:03,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:03,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:03,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:04,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:04,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 14:18:04,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 14:18:04,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 916 [2020-10-13 14:18:04,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 14:18:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 14:18:04,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 14:18:04,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:04,423 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:18:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:04,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:04,448 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 14:18:04,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116135036] [2020-10-13 14:18:04,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:04,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 14:18:04,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536835118] [2020-10-13 14:18:04,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 14:18:04,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:04,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 14:18:04,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-13 14:18:04,450 INFO L87 Difference]: Start difference. First operand 256 states and 324 transitions. Second operand 12 states. [2020-10-13 14:18:04,710 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 14:18:05,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:05,934 INFO L93 Difference]: Finished difference Result 457 states and 600 transitions. [2020-10-13 14:18:05,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 14:18:05,934 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-10-13 14:18:05,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:05,936 INFO L225 Difference]: With dead ends: 457 [2020-10-13 14:18:05,937 INFO L226 Difference]: Without dead ends: 453 [2020-10-13 14:18:05,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2020-10-13 14:18:05,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-10-13 14:18:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 262. [2020-10-13 14:18:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-13 14:18:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 332 transitions. [2020-10-13 14:18:06,018 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 332 transitions. Word has length 71 [2020-10-13 14:18:06,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:06,018 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 332 transitions. [2020-10-13 14:18:06,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 14:18:06,018 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 332 transitions. [2020-10-13 14:18:06,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 14:18:06,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:06,019 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] [2020-10-13 14:18:06,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 14:18:06,020 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:06,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:06,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1679161147, now seen corresponding path program 1 times [2020-10-13 14:18:06,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:06,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149884203] [2020-10-13 14:18:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:06,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:08,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:08,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:09,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:09,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:09,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:10,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:10,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:11,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:11,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 14:18:11,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:18:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:18:11,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:18:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:18:11,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 14:18:11,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:11,426 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:18:11,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:11,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:11,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:11,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:11,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:11,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:18:11,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:11,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:11,472 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 14:18:11,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149884203] [2020-10-13 14:18:11,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:11,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:18:11,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420179228] [2020-10-13 14:18:11,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:18:11,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:11,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:18:11,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:18:11,473 INFO L87 Difference]: Start difference. First operand 262 states and 332 transitions. Second operand 11 states. [2020-10-13 14:18:11,726 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-13 14:18:13,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:13,189 INFO L93 Difference]: Finished difference Result 636 states and 865 transitions. [2020-10-13 14:18:13,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:18:13,190 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-13 14:18:13,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:13,191 INFO L225 Difference]: With dead ends: 636 [2020-10-13 14:18:13,191 INFO L226 Difference]: Without dead ends: 523 [2020-10-13 14:18:13,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2020-10-13 14:18:13,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-10-13 14:18:13,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 251. [2020-10-13 14:18:13,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-13 14:18:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 319 transitions. [2020-10-13 14:18:13,267 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 319 transitions. Word has length 71 [2020-10-13 14:18:13,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:13,267 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 319 transitions. [2020-10-13 14:18:13,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:18:13,267 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 319 transitions. [2020-10-13 14:18:13,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 14:18:13,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:13,268 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] [2020-10-13 14:18:13,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 14:18:13,268 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:13,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:13,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1164547173, now seen corresponding path program 1 times [2020-10-13 14:18:13,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:13,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427596800] [2020-10-13 14:18:13,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:13,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:13,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:13,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:13,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:14,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:14,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 14:18:14,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 14:18:14,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1473 [2020-10-13 14:18:14,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 14:18:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:18:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 14:18:14,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:15,047 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:18:15,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:15,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:15,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:15,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:15,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:15,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 14:18:15,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:15,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:15,080 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 14:18:15,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427596800] [2020-10-13 14:18:15,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:15,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 14:18:15,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424957849] [2020-10-13 14:18:15,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 14:18:15,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:15,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 14:18:15,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:18:15,082 INFO L87 Difference]: Start difference. First operand 251 states and 319 transitions. Second operand 8 states. [2020-10-13 14:18:15,419 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 14:18:16,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:16,542 INFO L93 Difference]: Finished difference Result 441 states and 584 transitions. [2020-10-13 14:18:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:18:16,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 72 [2020-10-13 14:18:16,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:16,544 INFO L225 Difference]: With dead ends: 441 [2020-10-13 14:18:16,544 INFO L226 Difference]: Without dead ends: 321 [2020-10-13 14:18:16,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:16,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-13 14:18:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 251. [2020-10-13 14:18:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-13 14:18:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 318 transitions. [2020-10-13 14:18:16,599 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 318 transitions. Word has length 72 [2020-10-13 14:18:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:16,599 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 318 transitions. [2020-10-13 14:18:16,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 14:18:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 318 transitions. [2020-10-13 14:18:16,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 14:18:16,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:16,600 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] [2020-10-13 14:18:16,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 14:18:16,600 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:16,600 INFO L82 PathProgramCache]: Analyzing trace with hash -490987540, now seen corresponding path program 1 times [2020-10-13 14:18:16,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:16,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584110517] [2020-10-13 14:18:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:16,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:17,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:17,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:18,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:18,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 14:18:18,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 14:18:18,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1752 [2020-10-13 14:18:18,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 14:18:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 14:18:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 14:18:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:18,742 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:18:18,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:18,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:18,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:18,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:18,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:18:18,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:18,767 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 14:18:18,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584110517] [2020-10-13 14:18:18,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:18,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 14:18:18,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229712697] [2020-10-13 14:18:18,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 14:18:18,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:18,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 14:18:18,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-13 14:18:18,769 INFO L87 Difference]: Start difference. First operand 251 states and 318 transitions. Second operand 12 states. [2020-10-13 14:18:19,136 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-13 14:18:20,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:20,955 INFO L93 Difference]: Finished difference Result 477 states and 626 transitions. [2020-10-13 14:18:20,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:18:20,955 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-10-13 14:18:20,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:20,957 INFO L225 Difference]: With dead ends: 477 [2020-10-13 14:18:20,957 INFO L226 Difference]: Without dead ends: 470 [2020-10-13 14:18:20,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2020-10-13 14:18:20,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-13 14:18:21,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 251. [2020-10-13 14:18:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-13 14:18:21,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 317 transitions. [2020-10-13 14:18:21,047 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 317 transitions. Word has length 72 [2020-10-13 14:18:21,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:21,047 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 317 transitions. [2020-10-13 14:18:21,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 14:18:21,047 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 317 transitions. [2020-10-13 14:18:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 14:18:21,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:21,048 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] [2020-10-13 14:18:21,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 14:18:21,049 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:21,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:21,049 INFO L82 PathProgramCache]: Analyzing trace with hash -618145488, now seen corresponding path program 1 times [2020-10-13 14:18:21,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:21,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122715546] [2020-10-13 14:18:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:21,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:22,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:23,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:23,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:23,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:23,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:24,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:24,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:24,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:25,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:25,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:25,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:25,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:25,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:25,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:25,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:25,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:26,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:26,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 14:18:26,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-13 14:18:26,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 14:18:26,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:18:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:18:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 14:18:26,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:26,361 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:18:26,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:26,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:26,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:26,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:26,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:26,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 14:18:26,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:26,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:26,387 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 14:18:26,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122715546] [2020-10-13 14:18:26,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:26,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:18:26,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212216833] [2020-10-13 14:18:26,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:18:26,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:26,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:18:26,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:18:26,389 INFO L87 Difference]: Start difference. First operand 251 states and 317 transitions. Second operand 9 states. [2020-10-13 14:18:26,644 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 14:18:27,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:27,665 INFO L93 Difference]: Finished difference Result 409 states and 534 transitions. [2020-10-13 14:18:27,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 14:18:27,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-13 14:18:27,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:27,667 INFO L225 Difference]: With dead ends: 409 [2020-10-13 14:18:27,667 INFO L226 Difference]: Without dead ends: 381 [2020-10-13 14:18:27,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-13 14:18:27,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 217. [2020-10-13 14:18:27,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-13 14:18:27,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 278 transitions. [2020-10-13 14:18:27,719 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 278 transitions. Word has length 72 [2020-10-13 14:18:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:27,719 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 278 transitions. [2020-10-13 14:18:27,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:18:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 278 transitions. [2020-10-13 14:18:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-13 14:18:27,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:27,720 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] [2020-10-13 14:18:27,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 14:18:27,720 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:27,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:27,721 INFO L82 PathProgramCache]: Analyzing trace with hash 809106115, now seen corresponding path program 1 times [2020-10-13 14:18:27,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:27,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050742361] [2020-10-13 14:18:27,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:27,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:27,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:27,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:28,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:28,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:28,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 14:18:28,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 14:18:28,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1108 [2020-10-13 14:18:28,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 14:18:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 14:18:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 14:18:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:29,196 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-13 14:18:29,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:29,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:29,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:29,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:29,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:29,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 14:18:29,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:29,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:29,220 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 14:18:29,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050742361] [2020-10-13 14:18:29,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:29,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 14:18:29,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926243727] [2020-10-13 14:18:29,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 14:18:29,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:29,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 14:18:29,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 14:18:29,221 INFO L87 Difference]: Start difference. First operand 217 states and 278 transitions. Second operand 12 states.