/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:04:31,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:04:31,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:04:31,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:04:31,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:04:31,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:04:31,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:04:31,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:04:31,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:04:31,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:04:31,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:04:31,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:04:31,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:04:31,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:04:31,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:04:31,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:04:31,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:04:31,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:04:31,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:04:31,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:04:31,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:04:31,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:04:31,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:04:31,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:04:31,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:04:31,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:04:31,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:04:31,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:04:31,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:04:31,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:04:31,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:04:31,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:04:31,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:04:31,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:04:31,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:04:31,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:04:31,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:04:31,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:04:31,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:04:31,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:04:31,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:04:31,965 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 [2020-10-15 03:04:32,006 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:04:32,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:04:32,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:04:32,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:04:32,009 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:04:32,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:04:32,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:04:32,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:04:32,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:04:32,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:04:32,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:04:32,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:04:32,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:04:32,012 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:04:32,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:04:32,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:04:32,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:04:32,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:04:32,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:04:32,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:04:32,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:04:32,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:04:32,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:04:32,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:04:32,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:04:32,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:04:32,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:04:32,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:04:32,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:04:32,015 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:04:32,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:04:32,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:04:32,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:04:32,555 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:04:32,556 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:04:32,556 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:04:32,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56d341a69/41b1cedcfc244e3e85918afa451dc80f/FLAG4f17b08fc [2020-10-15 03:04:33,687 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:04:33,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:04:33,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56d341a69/41b1cedcfc244e3e85918afa451dc80f/FLAG4f17b08fc [2020-10-15 03:04:34,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56d341a69/41b1cedcfc244e3e85918afa451dc80f [2020-10-15 03:04:34,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:04:34,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:04:34,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:04:34,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:04:34,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:04:34,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:04:34" (1/1) ... [2020-10-15 03:04:34,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496f409b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:34, skipping insertion in model container [2020-10-15 03:04:34,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:04:34" (1/1) ... [2020-10-15 03:04:34,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:04:34,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:04:36,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:04:36,273 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:04:37,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:04:37,431 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:04:37,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37 WrapperNode [2020-10-15 03:04:37,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:04:37,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:04:37,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:04:37,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:04:37,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (1/1) ... [2020-10-15 03:04:37,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (1/1) ... [2020-10-15 03:04:37,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (1/1) ... [2020-10-15 03:04:37,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (1/1) ... [2020-10-15 03:04:37,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (1/1) ... [2020-10-15 03:04:37,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (1/1) ... [2020-10-15 03:04:37,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (1/1) ... [2020-10-15 03:04:37,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:04:37,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:04:37,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:04:37,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:04:37,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (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 [2020-10-15 03:04:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:04:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:04:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:04:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:04:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:04:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:04:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:04:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:04:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:04:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:04:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:04:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:04:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:04:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:04:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:04:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:04:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:04:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:04:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:04:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:04:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:04:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:04:40,627 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:04:40,628 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:04:40,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:04:40 BoogieIcfgContainer [2020-10-15 03:04:40,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:04:40,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:04:40,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:04:40,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:04:40,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:04:34" (1/3) ... [2020-10-15 03:04:40,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c574f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:04:40, skipping insertion in model container [2020-10-15 03:04:40,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:37" (2/3) ... [2020-10-15 03:04:40,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c574f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:04:40, skipping insertion in model container [2020-10-15 03:04:40,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:04:40" (3/3) ... [2020-10-15 03:04:40,649 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:04:40,664 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:04:40,675 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-15 03:04:40,695 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-15 03:04:40,733 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:04:40,733 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:04:40,733 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:04:40,733 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:04:40,734 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:04:40,734 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:04:40,734 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:04:40,734 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:04:40,774 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2020-10-15 03:04:40,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-15 03:04:40,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:04:40,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:04:40,806 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:04:40,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:04:40,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1261911331, now seen corresponding path program 1 times [2020-10-15 03:04:40,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:04:40,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871459255] [2020-10-15 03:04:40,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:04:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:04:42,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:42,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:43,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:43,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:44,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:44,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:44,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:44,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:45,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:45,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:45,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:45,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:45,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:46,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:04:46,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-15 03:04:46,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:04:46,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 03:04:46,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:04:46,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:04:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:04:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-15 03:04:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-15 03:04:46,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:04:47,829 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:04:47,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:04:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:04:47,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:47,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:04:47,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:04:47,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:04:47,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 03:04:47,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:04:47,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:04:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:04:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:04:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:04:47,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:04:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:04:48,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871459255] [2020-10-15 03:04:48,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:04:48,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:04:48,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563733458] [2020-10-15 03:04:48,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:04:48,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:04:48,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:04:48,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:04:48,099 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 4 states. [2020-10-15 03:04:49,021 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:04:57,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:04:57,006 INFO L93 Difference]: Finished difference Result 1616 states and 2887 transitions. [2020-10-15 03:04:57,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:04:57,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-10-15 03:04:57,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:04:57,050 INFO L225 Difference]: With dead ends: 1616 [2020-10-15 03:04:57,050 INFO L226 Difference]: Without dead ends: 1346 [2020-10-15 03:04:57,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:04:57,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2020-10-15 03:04:57,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1344. [2020-10-15 03:04:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1344 states. [2020-10-15 03:04:57,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 2047 transitions. [2020-10-15 03:04:57,254 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 2047 transitions. Word has length 308 [2020-10-15 03:04:57,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:04:57,256 INFO L479 AbstractCegarLoop]: Abstraction has 1344 states and 2047 transitions. [2020-10-15 03:04:57,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:04:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 2047 transitions. [2020-10-15 03:04:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-15 03:04:57,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:04:57,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:04:57,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:04:57,264 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:04:57,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:04:57,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1007463938, now seen corresponding path program 1 times [2020-10-15 03:04:57,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:04:57,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118284658] [2020-10-15 03:04:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:04:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:04:57,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:58,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:58,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:59,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:59,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:04:59,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:00,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:00,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:00,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:00,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:00,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:01,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:02,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:05:02,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-15 03:05:02,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:05:02,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-15 03:05:02,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:05:02,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:05:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:05:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-15 03:05:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-15 03:05:02,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 03:05:03,742 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:05:03,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:05:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:05:03,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:03,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:05:03,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:05:03,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:05:03,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 03:05:03,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:05:03,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:05:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:05:03,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:05:03,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:05:03,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:05:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:05:04,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118284658] [2020-10-15 03:05:04,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:05:04,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:05:04,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985235802] [2020-10-15 03:05:04,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:05:04,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:05:04,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:05:04,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:05:04,056 INFO L87 Difference]: Start difference. First operand 1344 states and 2047 transitions. Second operand 4 states. [2020-10-15 03:05:04,683 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:05:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:05:11,961 INFO L93 Difference]: Finished difference Result 2567 states and 3958 transitions. [2020-10-15 03:05:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:05:11,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-10-15 03:05:11,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:05:11,978 INFO L225 Difference]: With dead ends: 2567 [2020-10-15 03:05:11,978 INFO L226 Difference]: Without dead ends: 2196 [2020-10-15 03:05:11,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:05:11,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2020-10-15 03:05:12,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2194. [2020-10-15 03:05:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2194 states. [2020-10-15 03:05:12,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 3358 transitions. [2020-10-15 03:05:12,091 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 3358 transitions. Word has length 308 [2020-10-15 03:05:12,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:05:12,092 INFO L479 AbstractCegarLoop]: Abstraction has 2194 states and 3358 transitions. [2020-10-15 03:05:12,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:05:12,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 3358 transitions. [2020-10-15 03:05:12,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-15 03:05:12,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:05:12,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:05:12,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:05:12,106 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:05:12,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:05:12,107 INFO L82 PathProgramCache]: Analyzing trace with hash -381271835, now seen corresponding path program 1 times [2020-10-15 03:05:12,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:05:12,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012469485] [2020-10-15 03:05:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:05:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:05:12,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:12,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:13,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:13,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:14,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:14,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:14,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:14,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:14,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:15,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:15,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:15,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:17,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:05:17,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-15 03:05:17,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:05:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:05:17,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:05:17,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:05:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:05:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-15 03:05:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-15 03:05:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:05:18,432 WARN L193 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:05:18,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:05:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:05:18,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:18,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:05:18,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:05:18,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:05:18,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 03:05:18,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:05:18,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:05:18,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:05:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:05:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:05:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:05:18,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:05:18,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012469485] [2020-10-15 03:05:18,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:05:18,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:05:18,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810215758] [2020-10-15 03:05:18,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:05:18,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:05:18,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:05:18,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:05:18,754 INFO L87 Difference]: Start difference. First operand 2194 states and 3358 transitions. Second operand 4 states. [2020-10-15 03:05:19,415 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:05:25,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:05:25,733 INFO L93 Difference]: Finished difference Result 4537 states and 7039 transitions. [2020-10-15 03:05:25,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:05:25,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-10-15 03:05:25,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:05:25,754 INFO L225 Difference]: With dead ends: 4537 [2020-10-15 03:05:25,754 INFO L226 Difference]: Without dead ends: 3940 [2020-10-15 03:05:25,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:05:25,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2020-10-15 03:05:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3938. [2020-10-15 03:05:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3938 states. [2020-10-15 03:05:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 6050 transitions. [2020-10-15 03:05:25,874 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 6050 transitions. Word has length 308 [2020-10-15 03:05:25,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:05:25,883 INFO L479 AbstractCegarLoop]: Abstraction has 3938 states and 6050 transitions. [2020-10-15 03:05:25,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:05:25,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 6050 transitions. [2020-10-15 03:05:25,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-15 03:05:25,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:05:25,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:05:25,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:05:25,895 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:05:25,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:05:25,895 INFO L82 PathProgramCache]: Analyzing trace with hash -381610459, now seen corresponding path program 1 times [2020-10-15 03:05:25,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:05:25,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594230430] [2020-10-15 03:05:25,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:05:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:05:26,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:26,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:27,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:27,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:27,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:27,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:27,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:27,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:28,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:28,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:28,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:28,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:30,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:31,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:05:31,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-15 03:05:31,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:05:31,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-15 03:05:31,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:05:31,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:05:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:05:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:05:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-15 03:05:31,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:05:32,187 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:05:32,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:05:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:05:32,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:32,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:05:32,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:05:32,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:05:32,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:05:32,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:05:32,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:05:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:05:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:05:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:05:32,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:05:32,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:05:32,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594230430] [2020-10-15 03:05:32,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:05:32,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:05:32,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967562026] [2020-10-15 03:05:32,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:05:32,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:05:32,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:05:32,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:05:32,420 INFO L87 Difference]: Start difference. First operand 3938 states and 6050 transitions. Second operand 5 states. [2020-10-15 03:05:42,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:05:42,332 INFO L93 Difference]: Finished difference Result 11649 states and 17883 transitions. [2020-10-15 03:05:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:05:42,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-10-15 03:05:42,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:05:42,372 INFO L225 Difference]: With dead ends: 11649 [2020-10-15 03:05:42,373 INFO L226 Difference]: Without dead ends: 7724 [2020-10-15 03:05:42,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:05:42,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7724 states. [2020-10-15 03:05:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7724 to 7560. [2020-10-15 03:05:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7560 states. [2020-10-15 03:05:42,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7560 states to 7560 states and 11565 transitions. [2020-10-15 03:05:42,657 INFO L78 Accepts]: Start accepts. Automaton has 7560 states and 11565 transitions. Word has length 308 [2020-10-15 03:05:42,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:05:42,658 INFO L479 AbstractCegarLoop]: Abstraction has 7560 states and 11565 transitions. [2020-10-15 03:05:42,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:05:42,658 INFO L276 IsEmpty]: Start isEmpty. Operand 7560 states and 11565 transitions. [2020-10-15 03:05:42,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-15 03:05:42,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:05:42,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:05:42,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:05:42,676 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:05:42,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:05:42,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1726616492, now seen corresponding path program 1 times [2020-10-15 03:05:42,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:05:42,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317460009] [2020-10-15 03:05:42,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:05:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:05:42,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:43,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:43,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:43,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:43,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:43,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:44,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:44,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:44,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:44,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:44,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:45,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:47,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:05:47,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-15 03:05:47,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:05:47,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-15 03:05:47,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:05:47,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:05:47,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:05:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:05:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-15 03:05:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:05:48,612 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:05:48,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:05:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:05:48,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:05:48,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:05:48,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:05:48,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:05:48,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:05:48,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:05:48,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:05:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:05:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:05:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:05:48,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:05:48,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:05:48,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317460009] [2020-10-15 03:05:48,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:05:48,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:05:48,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101787614] [2020-10-15 03:05:48,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:05:48,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:05:48,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:05:48,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:05:48,779 INFO L87 Difference]: Start difference. First operand 7560 states and 11565 transitions. Second operand 5 states. [2020-10-15 03:05:59,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:05:59,640 INFO L93 Difference]: Finished difference Result 22369 states and 34191 transitions. [2020-10-15 03:05:59,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:05:59,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-15 03:05:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:05:59,699 INFO L225 Difference]: With dead ends: 22369 [2020-10-15 03:05:59,699 INFO L226 Difference]: Without dead ends: 14832 [2020-10-15 03:05:59,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:05:59,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14832 states. [2020-10-15 03:06:00,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14832 to 14624. [2020-10-15 03:06:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14624 states. [2020-10-15 03:06:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14624 states to 14624 states and 22261 transitions. [2020-10-15 03:06:00,333 INFO L78 Accepts]: Start accepts. Automaton has 14624 states and 22261 transitions. Word has length 310 [2020-10-15 03:06:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:06:00,333 INFO L479 AbstractCegarLoop]: Abstraction has 14624 states and 22261 transitions. [2020-10-15 03:06:00,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:06:00,334 INFO L276 IsEmpty]: Start isEmpty. Operand 14624 states and 22261 transitions. [2020-10-15 03:06:00,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-15 03:06:00,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:06:00,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:06:00,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:06:00,365 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:06:00,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:06:00,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2120816688, now seen corresponding path program 1 times [2020-10-15 03:06:00,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:06:00,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251257368] [2020-10-15 03:06:00,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:06:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:06:00,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:00,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:00,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:01,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:01,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:01,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:02,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:02,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:02,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:02,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:02,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:02,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:03,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:04,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:04,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:04,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:05,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:05,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:06:05,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-15 03:06:05,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:06:05,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:06:05,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:06:05,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:06:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:06:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:06:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-15 03:06:05,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:06:06,210 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:06:06,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:06:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:06:06,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:06,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:06:06,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:06:06,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:06:06,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:06:06,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:06:06,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:06:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:06:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:06:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:06:06,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:06:06,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:06:06,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251257368] [2020-10-15 03:06:06,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:06:06,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:06:06,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373871175] [2020-10-15 03:06:06,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:06:06,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:06:06,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:06:06,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:06:06,518 INFO L87 Difference]: Start difference. First operand 14624 states and 22261 transitions. Second operand 5 states. [2020-10-15 03:06:18,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:06:18,452 INFO L93 Difference]: Finished difference Result 43082 states and 65471 transitions. [2020-10-15 03:06:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:06:18,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-10-15 03:06:18,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:06:18,516 INFO L225 Difference]: With dead ends: 43082 [2020-10-15 03:06:18,516 INFO L226 Difference]: Without dead ends: 28648 [2020-10-15 03:06:18,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:06:18,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28648 states. [2020-10-15 03:06:20,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28648 to 28564. [2020-10-15 03:06:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28564 states. [2020-10-15 03:06:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28564 states to 28564 states and 43203 transitions. [2020-10-15 03:06:20,876 INFO L78 Accepts]: Start accepts. Automaton has 28564 states and 43203 transitions. Word has length 312 [2020-10-15 03:06:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:06:20,876 INFO L479 AbstractCegarLoop]: Abstraction has 28564 states and 43203 transitions. [2020-10-15 03:06:20,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:06:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 28564 states and 43203 transitions. [2020-10-15 03:06:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-15 03:06:20,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:06:20,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:06:20,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:06:20,924 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:06:20,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:06:20,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1242543411, now seen corresponding path program 1 times [2020-10-15 03:06:20,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:06:20,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989796733] [2020-10-15 03:06:20,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:06:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:06:20,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:21,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:22,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:22,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:22,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:22,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:23,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:25,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:06:25,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-15 03:06:25,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:06:25,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-15 03:06:25,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:06:25,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:06:25,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:06:25,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 03:06:25,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-15 03:06:25,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:06:26,683 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:06:26,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:06:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:06:26,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:26,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:06:26,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:06:26,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:06:26,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:06:26,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:06:26,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:06:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:06:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:06:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:06:26,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:06:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:06:26,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989796733] [2020-10-15 03:06:26,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:06:26,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:06:26,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757668569] [2020-10-15 03:06:26,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:06:26,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:06:26,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:06:26,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:06:26,850 INFO L87 Difference]: Start difference. First operand 28564 states and 43203 transitions. Second operand 4 states. [2020-10-15 03:06:39,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:06:39,255 INFO L93 Difference]: Finished difference Result 84100 states and 126959 transitions. [2020-10-15 03:06:39,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:06:39,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2020-10-15 03:06:39,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:06:39,432 INFO L225 Difference]: With dead ends: 84100 [2020-10-15 03:06:39,433 INFO L226 Difference]: Without dead ends: 55836 [2020-10-15 03:06:39,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:06:39,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55836 states. [2020-10-15 03:06:42,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55836 to 55728. [2020-10-15 03:06:42,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55728 states. [2020-10-15 03:06:42,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55728 states to 55728 states and 83687 transitions. [2020-10-15 03:06:42,329 INFO L78 Accepts]: Start accepts. Automaton has 55728 states and 83687 transitions. Word has length 314 [2020-10-15 03:06:42,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:06:42,331 INFO L479 AbstractCegarLoop]: Abstraction has 55728 states and 83687 transitions. [2020-10-15 03:06:42,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:06:42,331 INFO L276 IsEmpty]: Start isEmpty. Operand 55728 states and 83687 transitions. [2020-10-15 03:06:42,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-15 03:06:42,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:06:42,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:06:42,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:06:42,417 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:06:42,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:06:42,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1124672264, now seen corresponding path program 1 times [2020-10-15 03:06:42,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:06:42,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353341163] [2020-10-15 03:06:42,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:06:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:06:42,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:42,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:42,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:42,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:42,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:42,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:43,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:43,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:43,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:43,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:43,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:44,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:44,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:47,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:06:47,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-15 03:06:47,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:06:47,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:06:47,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:06:47,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:06:47,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:06:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:06:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-15 03:06:47,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:06:48,336 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:06:48,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:06:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:06:48,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:06:48,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:06:48,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:06:48,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:06:48,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:06:48,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:06:48,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:06:48,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:06:48,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:06:48,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:06:48,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:06:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:06:48,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353341163] [2020-10-15 03:06:48,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:06:48,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:06:48,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948696620] [2020-10-15 03:06:48,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:06:48,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:06:48,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:06:48,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:06:48,476 INFO L87 Difference]: Start difference. First operand 55728 states and 83687 transitions. Second operand 5 states. [2020-10-15 03:07:03,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:07:03,108 INFO L93 Difference]: Finished difference Result 164545 states and 246701 transitions. [2020-10-15 03:07:03,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:07:03,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 314 [2020-10-15 03:07:03,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:07:03,290 INFO L225 Difference]: With dead ends: 164545 [2020-10-15 03:07:03,291 INFO L226 Difference]: Without dead ends: 109085 [2020-10-15 03:07:03,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:07:03,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109085 states. [2020-10-15 03:07:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109085 to 108561. [2020-10-15 03:07:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108561 states. [2020-10-15 03:07:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108561 states to 108561 states and 161773 transitions. [2020-10-15 03:07:10,981 INFO L78 Accepts]: Start accepts. Automaton has 108561 states and 161773 transitions. Word has length 314 [2020-10-15 03:07:10,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:07:10,981 INFO L479 AbstractCegarLoop]: Abstraction has 108561 states and 161773 transitions. [2020-10-15 03:07:10,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:07:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 108561 states and 161773 transitions. [2020-10-15 03:07:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-15 03:07:11,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:07:11,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:07:11,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:07:11,115 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:07:11,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:07:11,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1821541530, now seen corresponding path program 1 times [2020-10-15 03:07:11,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:07:11,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704762915] [2020-10-15 03:07:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:07:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:07:11,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:11,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:11,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:11,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:11,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:11,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:11,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:11,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:11,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:12,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:12,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:12,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:12,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:13,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:13,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:14,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:16,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:07:16,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-15 03:07:16,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 03:07:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-15 03:07:16,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:07:16,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:07:16,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:07:16,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:07:16,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-15 03:07:16,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:07:16,839 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:07:16,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:07:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:07:16,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:16,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:07:16,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:07:16,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:07:16,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:07:16,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:07:16,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:07:16,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:07:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:07:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:07:16,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:07:16,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:07:16,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704762915] [2020-10-15 03:07:16,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:07:16,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:07:16,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668081840] [2020-10-15 03:07:16,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:07:16,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:07:16,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:07:16,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:07:16,975 INFO L87 Difference]: Start difference. First operand 108561 states and 161773 transitions. Second operand 5 states. [2020-10-15 03:07:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:07:39,273 INFO L93 Difference]: Finished difference Result 320581 states and 476951 transitions. [2020-10-15 03:07:39,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:07:39,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2020-10-15 03:07:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:07:39,646 INFO L225 Difference]: With dead ends: 320581 [2020-10-15 03:07:39,647 INFO L226 Difference]: Without dead ends: 212577 [2020-10-15 03:07:39,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:07:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212577 states. [2020-10-15 03:07:53,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212577 to 212293. [2020-10-15 03:07:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212293 states. [2020-10-15 03:07:53,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212293 states to 212293 states and 313779 transitions. [2020-10-15 03:07:53,838 INFO L78 Accepts]: Start accepts. Automaton has 212293 states and 313779 transitions. Word has length 316 [2020-10-15 03:07:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:07:53,839 INFO L479 AbstractCegarLoop]: Abstraction has 212293 states and 313779 transitions. [2020-10-15 03:07:53,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:07:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 212293 states and 313779 transitions. [2020-10-15 03:07:54,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-15 03:07:54,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:07:54,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:07:54,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:07:54,047 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 03:07:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:07:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1540256432, now seen corresponding path program 1 times [2020-10-15 03:07:54,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:07:54,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375692345] [2020-10-15 03:07:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:07:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:07:54,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:55,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:55,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:56,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:56,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:00,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:00,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-15 03:08:00,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:08:00,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6723 [2020-10-15 03:08:00,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:00,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:08:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:08:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-15 03:08:00,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:08:01,823 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:08:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:08:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:01,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:01,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:01,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:08:01,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:08:01,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:08:01,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:01,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:01,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:08:01,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:08:01,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:08:01,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:08:01,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:08:01,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375692345] [2020-10-15 03:08:01,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:08:01,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:08:01,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136395699] [2020-10-15 03:08:02,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:08:02,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:08:02,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:08:02,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:08:02,001 INFO L87 Difference]: Start difference. First operand 212293 states and 313779 transitions. Second operand 5 states.