/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:38:31,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:38:31,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:38:31,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:38:31,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:38:31,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:38:31,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:38:31,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:38:31,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:38:31,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:38:31,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:38:31,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:38:31,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:38:31,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:38:31,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:38:31,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:38:31,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:38:31,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:38:31,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:38:31,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:38:31,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:38:31,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:38:31,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:38:31,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:38:31,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:38:31,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:38:31,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:38:31,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:38:31,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:38:31,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:38:31,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:38:31,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:38:31,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:38:31,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:38:31,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:38:31,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:38:31,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:38:31,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:38:31,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:38:31,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:38:31,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:38:31,858 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 [2020-10-29 08:38:31,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:38:31,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:38:31,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:38:31,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:38:31,905 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:38:31,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:38:31,906 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:38:31,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:38:31,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:38:31,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:38:31,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:38:31,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:38:31,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:38:31,907 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:38:31,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:38:31,908 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:38:31,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:38:31,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:38:31,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:38:31,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:38:31,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:38:31,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:38:31,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:38:31,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:38:31,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:38:31,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:38:31,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:38:31,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:38:31,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:38:31,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:38:32,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:38:32,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:38:32,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:38:32,356 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:38:32,356 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:38:32,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label46.c [2020-10-29 08:38:32,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e02a7db5d/205ef7b5cf414f9e9263702ea42fc772/FLAG2e405e0df [2020-10-29 08:38:33,424 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:38:33,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label46.c [2020-10-29 08:38:33,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e02a7db5d/205ef7b5cf414f9e9263702ea42fc772/FLAG2e405e0df [2020-10-29 08:38:33,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e02a7db5d/205ef7b5cf414f9e9263702ea42fc772 [2020-10-29 08:38:33,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:38:33,532 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:38:33,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:38:33,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:38:33,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:38:33,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:38:33" (1/1) ... [2020-10-29 08:38:33,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c76db6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:33, skipping insertion in model container [2020-10-29 08:38:33,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:38:33" (1/1) ... [2020-10-29 08:38:33,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:38:33,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:38:34,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:38:34,789 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:38:35,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:38:35,405 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:38:35,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35 WrapperNode [2020-10-29 08:38:35,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:38:35,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:38:35,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:38:35,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:38:35,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (1/1) ... [2020-10-29 08:38:35,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (1/1) ... [2020-10-29 08:38:35,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (1/1) ... [2020-10-29 08:38:35,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (1/1) ... [2020-10-29 08:38:35,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (1/1) ... [2020-10-29 08:38:35,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (1/1) ... [2020-10-29 08:38:35,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (1/1) ... [2020-10-29 08:38:35,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:38:35,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:38:35,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:38:35,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:38:35,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (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 [2020-10-29 08:38:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:38:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:38:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:38:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:38:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:38:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 08:38:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:38:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:38:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:38:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 08:38:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:38:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:38:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:38:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:38:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:38:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:38:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:38:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:38:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:38:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:38:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:38:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:38:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:38:39,964 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:38:39,965 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:38:39,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:38:39 BoogieIcfgContainer [2020-10-29 08:38:39,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:38:39,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:38:39,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:38:39,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:38:39,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:38:33" (1/3) ... [2020-10-29 08:38:39,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2286b492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:38:39, skipping insertion in model container [2020-10-29 08:38:39,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:35" (2/3) ... [2020-10-29 08:38:39,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2286b492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:38:39, skipping insertion in model container [2020-10-29 08:38:39,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:38:39" (3/3) ... [2020-10-29 08:38:39,989 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label46.c [2020-10-29 08:38:40,005 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:38:40,013 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:38:40,029 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:38:40,078 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:38:40,079 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:38:40,079 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:38:40,079 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:38:40,079 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:38:40,080 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:38:40,080 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:38:40,080 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:38:40,130 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-29 08:38:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-29 08:38:40,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:40,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:38:40,142 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:40,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:40,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1873168728, now seen corresponding path program 1 times [2020-10-29 08:38:40,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:40,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856818752] [2020-10-29 08:38:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:40,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:40,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:40,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-29 08:38:40,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:40,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-29 08:38:40,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:40,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:40,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:38:40,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:38:40,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-29 08:38:40,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:38:41,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:41,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:41,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:41,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:41,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:38:41,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:41,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:41,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:38:41,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:38:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:38:41,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856818752] [2020-10-29 08:38:41,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:38:41,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:38:41,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346897250] [2020-10-29 08:38:41,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:38:41,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:41,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:38:41,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:38:41,236 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 4 states. [2020-10-29 08:38:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:38:50,247 INFO L93 Difference]: Finished difference Result 2291 states and 4370 transitions. [2020-10-29 08:38:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:38:50,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-29 08:38:50,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:38:50,281 INFO L225 Difference]: With dead ends: 2291 [2020-10-29 08:38:50,281 INFO L226 Difference]: Without dead ends: 1433 [2020-10-29 08:38:50,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:38:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-29 08:38:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1429. [2020-10-29 08:38:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2020-10-29 08:38:50,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2263 transitions. [2020-10-29 08:38:50,437 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2263 transitions. Word has length 43 [2020-10-29 08:38:50,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:38:50,438 INFO L481 AbstractCegarLoop]: Abstraction has 1429 states and 2263 transitions. [2020-10-29 08:38:50,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:38:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2263 transitions. [2020-10-29 08:38:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-29 08:38:50,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:50,444 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:38:50,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:38:50,445 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:50,446 INFO L82 PathProgramCache]: Analyzing trace with hash 484861417, now seen corresponding path program 1 times [2020-10-29 08:38:50,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:50,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518934930] [2020-10-29 08:38:50,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:50,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:50,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:51,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:51,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-29 08:38:51,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:38:51,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1083 [2020-10-29 08:38:51,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:51,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:38:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:38:51,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 08:38:51,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:38:51,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:51,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:51,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:51,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:51,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:51,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:38:51,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:51,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:51,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:51,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:38:51,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:38:51,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:38:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:51,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:51,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:51,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:38:51,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:51,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 08:38:51,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:51,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:51,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:38:51,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:38:51,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 08:38:51,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:38:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:38:51,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518934930] [2020-10-29 08:38:51,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:38:51,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:38:51,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732258218] [2020-10-29 08:38:51,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:38:51,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:51,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:38:51,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:38:51,989 INFO L87 Difference]: Start difference. First operand 1429 states and 2263 transitions. Second operand 7 states. [2020-10-29 08:39:01,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:01,917 INFO L93 Difference]: Finished difference Result 4369 states and 6949 transitions. [2020-10-29 08:39:01,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:39:01,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-29 08:39:01,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:01,937 INFO L225 Difference]: With dead ends: 4369 [2020-10-29 08:39:01,937 INFO L226 Difference]: Without dead ends: 2946 [2020-10-29 08:39:01,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:39:01,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2020-10-29 08:39:02,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2895. [2020-10-29 08:39:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2895 states. [2020-10-29 08:39:02,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 3903 transitions. [2020-10-29 08:39:02,031 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 3903 transitions. Word has length 112 [2020-10-29 08:39:02,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:02,032 INFO L481 AbstractCegarLoop]: Abstraction has 2895 states and 3903 transitions. [2020-10-29 08:39:02,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:02,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 3903 transitions. [2020-10-29 08:39:02,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-29 08:39:02,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:02,038 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:39:02,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:39:02,039 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:02,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:02,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1354261192, now seen corresponding path program 1 times [2020-10-29 08:39:02,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:02,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880872451] [2020-10-29 08:39:02,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:02,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:02,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:03,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:06,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:06,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:39:06,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:39:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4201 [2020-10-29 08:39:06,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:06,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:39:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:39:06,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:39:06,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:06,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:06,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:06,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:06,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:06,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:39:06,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:06,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:06,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:06,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:06,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:39:06,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:06,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:06,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:06,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:06,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:39:06,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:06,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-29 08:39:06,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:06,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:06,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:06,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:06,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:39:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:39:07,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 08:39:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:07,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:07,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:07,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:39:07,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:07,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:39:07,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:07,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:39:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:07,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:39:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 70 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 08:39:07,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880872451] [2020-10-29 08:39:07,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:07,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:39:07,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532551072] [2020-10-29 08:39:07,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:07,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:07,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:07,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:07,268 INFO L87 Difference]: Start difference. First operand 2895 states and 3903 transitions. Second operand 7 states. [2020-10-29 08:39:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:16,533 INFO L93 Difference]: Finished difference Result 7433 states and 9777 transitions. [2020-10-29 08:39:16,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:39:16,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-29 08:39:16,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:16,561 INFO L225 Difference]: With dead ends: 7433 [2020-10-29 08:39:16,561 INFO L226 Difference]: Without dead ends: 4544 [2020-10-29 08:39:16,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:39:16,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4544 states. [2020-10-29 08:39:16,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4544 to 4395. [2020-10-29 08:39:16,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4395 states. [2020-10-29 08:39:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 5619 transitions. [2020-10-29 08:39:16,719 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 5619 transitions. Word has length 234 [2020-10-29 08:39:16,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:16,729 INFO L481 AbstractCegarLoop]: Abstraction has 4395 states and 5619 transitions. [2020-10-29 08:39:16,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:16,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 5619 transitions. [2020-10-29 08:39:16,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-29 08:39:16,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:16,741 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:39:16,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:39:16,741 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:16,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:16,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1951824041, now seen corresponding path program 1 times [2020-10-29 08:39:16,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:16,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250372896] [2020-10-29 08:39:16,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:17,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:17,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:21,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:21,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-29 08:39:21,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:39:21,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4873 [2020-10-29 08:39:21,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:21,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:21,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:39:21,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:39:21,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-29 08:39:21,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:21,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:21,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:21,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:21,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:39:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:21,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:39:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:21,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:22,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:22,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:22,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:39:22,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 654 [2020-10-29 08:39:22,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:22,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-29 08:39:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:22,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:22,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:22,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:22,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:39:22,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:22,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 08:39:22,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:22,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:39:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:39:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:39:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:39:23,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250372896] [2020-10-29 08:39:23,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:39:23,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:39:23,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474093704] [2020-10-29 08:39:23,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:39:23,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:23,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:39:23,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:39:23,592 INFO L87 Difference]: Start difference. First operand 4395 states and 5619 transitions. Second operand 8 states. [2020-10-29 08:39:39,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:39,727 INFO L93 Difference]: Finished difference Result 16563 states and 22746 transitions. [2020-10-29 08:39:39,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:39:39,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 350 [2020-10-29 08:39:39,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:39,796 INFO L225 Difference]: With dead ends: 16563 [2020-10-29 08:39:39,797 INFO L226 Difference]: Without dead ends: 12174 [2020-10-29 08:39:39,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:39:39,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12174 states. [2020-10-29 08:39:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12174 to 12008. [2020-10-29 08:39:40,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12008 states. [2020-10-29 08:39:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12008 states to 12008 states and 15278 transitions. [2020-10-29 08:39:40,235 INFO L78 Accepts]: Start accepts. Automaton has 12008 states and 15278 transitions. Word has length 350 [2020-10-29 08:39:40,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:40,237 INFO L481 AbstractCegarLoop]: Abstraction has 12008 states and 15278 transitions. [2020-10-29 08:39:40,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:39:40,237 INFO L276 IsEmpty]: Start isEmpty. Operand 12008 states and 15278 transitions. [2020-10-29 08:39:40,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2020-10-29 08:39:40,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:40,252 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:39:40,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:39:40,252 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:40,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:40,255 INFO L82 PathProgramCache]: Analyzing trace with hash 505245046, now seen corresponding path program 1 times [2020-10-29 08:39:40,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:40,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698089679] [2020-10-29 08:39:40,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:40,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:40,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:42,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:45,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:45,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 552 [2020-10-29 08:39:45,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:39:45,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4721 [2020-10-29 08:39:45,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:45,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:45,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:45,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:39:45,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 309 [2020-10-29 08:39:45,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:39:45,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:45,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:45,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:45,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:45,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:45,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:39:45,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:45,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:45,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:45,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:45,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:45,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 08:39:45,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:45,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 08:39:45,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:45,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:45,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:45,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:45,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 08:39:45,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:45,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-29 08:39:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:45,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:46,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:46,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:39:46,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-29 08:39:46,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:46,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-29 08:39:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:46,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:46,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:46,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:46,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:39:46,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:46,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:39:46,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:46,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:46,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:39:46,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:46,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:39:46,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 253 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 08:39:47,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698089679] [2020-10-29 08:39:47,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:47,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 08:39:47,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168026720] [2020-10-29 08:39:47,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 08:39:47,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:47,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 08:39:47,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-29 08:39:47,092 INFO L87 Difference]: Start difference. First operand 12008 states and 15278 transitions. Second operand 9 states. [2020-10-29 08:40:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:04,520 INFO L93 Difference]: Finished difference Result 39135 states and 53374 transitions. [2020-10-29 08:40:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 08:40:04,522 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 536 [2020-10-29 08:40:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:04,621 INFO L225 Difference]: With dead ends: 39135 [2020-10-29 08:40:04,621 INFO L226 Difference]: Without dead ends: 22375 [2020-10-29 08:40:04,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-10-29 08:40:04,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22375 states. [2020-10-29 08:40:05,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22375 to 21531. [2020-10-29 08:40:05,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21531 states. [2020-10-29 08:40:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21531 states to 21531 states and 25056 transitions. [2020-10-29 08:40:05,383 INFO L78 Accepts]: Start accepts. Automaton has 21531 states and 25056 transitions. Word has length 536 [2020-10-29 08:40:05,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:05,384 INFO L481 AbstractCegarLoop]: Abstraction has 21531 states and 25056 transitions. [2020-10-29 08:40:05,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 08:40:05,384 INFO L276 IsEmpty]: Start isEmpty. Operand 21531 states and 25056 transitions. [2020-10-29 08:40:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2020-10-29 08:40:05,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:05,425 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:40:05,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:40:05,426 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:05,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:05,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1152590313, now seen corresponding path program 1 times [2020-10-29 08:40:05,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:05,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447662085] [2020-10-29 08:40:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:05,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:06,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:10,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:10,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 989 [2020-10-29 08:40:10,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:40:10,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-29 08:40:10,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:10,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:40:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 08:40:10,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:10,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:10,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:10,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:10,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:10,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:10,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:40:10,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:10,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:10,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:11,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:11,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:11,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:11,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:40:11,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:11,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 08:40:11,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:11,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:11,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:11,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:40:11,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:11,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:11,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:11,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:40:11,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 08:40:11,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:11,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:11,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:11,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:40:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:11,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:11,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:11,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:40:11,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:11,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:40:11,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:11,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:11,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:40:11,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:40:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:11,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:12,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:12,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:12,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:12,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-29 08:40:12,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:12,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:12,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:12,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:12,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:40:12,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:12,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:12,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:12,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:12,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:12,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:12,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:40:12,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:12,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:40:12,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:12,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:40:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:12,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:12,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:12,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:40:12,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:12,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 08:40:12,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:12,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:40:12,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:40:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 287 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-29 08:40:13,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447662085] [2020-10-29 08:40:13,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:13,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:40:13,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435643126] [2020-10-29 08:40:13,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:40:13,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:13,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:40:13,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:40:13,124 INFO L87 Difference]: Start difference. First operand 21531 states and 25056 transitions. Second operand 7 states. [2020-10-29 08:40:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:21,649 INFO L93 Difference]: Finished difference Result 51355 states and 61956 transitions. [2020-10-29 08:40:21,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:40:21,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 967 [2020-10-29 08:40:21,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:21,762 INFO L225 Difference]: With dead ends: 51355 [2020-10-29 08:40:21,762 INFO L226 Difference]: Without dead ends: 29830 [2020-10-29 08:40:21,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:40:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29830 states. [2020-10-29 08:40:22,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29830 to 29689. [2020-10-29 08:40:22,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29689 states. [2020-10-29 08:40:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29689 states to 29689 states and 35390 transitions. [2020-10-29 08:40:22,780 INFO L78 Accepts]: Start accepts. Automaton has 29689 states and 35390 transitions. Word has length 967 [2020-10-29 08:40:22,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:22,782 INFO L481 AbstractCegarLoop]: Abstraction has 29689 states and 35390 transitions. [2020-10-29 08:40:22,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:40:22,782 INFO L276 IsEmpty]: Start isEmpty. Operand 29689 states and 35390 transitions. [2020-10-29 08:40:22,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2020-10-29 08:40:22,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:22,801 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:40:22,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:40:22,802 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:22,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:22,803 INFO L82 PathProgramCache]: Analyzing trace with hash -210981444, now seen corresponding path program 1 times [2020-10-29 08:40:22,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:22,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21258491] [2020-10-29 08:40:22,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:23,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:23,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:24,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:28,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:28,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1067 [2020-10-29 08:40:28,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:40:28,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-29 08:40:28,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:28,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:28,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:28,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:40:28,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:40:28,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:28,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:28,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:28,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:28,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:28,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:40:28,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:28,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:28,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:28,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:28,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:28,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:40:28,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-29 08:40:28,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:28,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:28,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:28,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:28,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:28,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:40:28,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:28,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 08:40:28,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:28,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:28,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:28,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:28,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:28,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:28,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:40:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:28,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:40:28,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:40:28,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:28,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:28,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:29,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:40:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:29,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:29,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:29,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:29,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-29 08:40:29,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:29,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:40:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:29,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:29,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:29,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:29,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:29,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:29,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:40:29,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:29,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:29,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:40:29,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:29,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:40:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:29,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:29,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:29,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:40:29,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:29,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 08:40:29,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:29,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:40:29,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:29,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-29 08:40:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:29,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:29,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:29,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:40:29,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:29,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:40:29,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:29,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:29,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:29,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 08:40:29,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:29,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 302 proven. 75 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2020-10-29 08:40:30,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21258491] [2020-10-29 08:40:30,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:30,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:40:30,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174014631] [2020-10-29 08:40:30,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:40:30,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:30,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:40:30,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:40:30,512 INFO L87 Difference]: Start difference. First operand 29689 states and 35390 transitions. Second operand 7 states. [2020-10-29 08:40:38,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:38,470 INFO L93 Difference]: Finished difference Result 75814 states and 92271 transitions. [2020-10-29 08:40:38,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:40:38,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1043 [2020-10-29 08:40:38,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:38,610 INFO L225 Difference]: With dead ends: 75814 [2020-10-29 08:40:38,610 INFO L226 Difference]: Without dead ends: 46131 [2020-10-29 08:40:38,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:40:38,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46131 states. [2020-10-29 08:40:39,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46131 to 45349. [2020-10-29 08:40:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45349 states. [2020-10-29 08:40:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45349 states to 45349 states and 54743 transitions. [2020-10-29 08:40:39,939 INFO L78 Accepts]: Start accepts. Automaton has 45349 states and 54743 transitions. Word has length 1043 [2020-10-29 08:40:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:39,941 INFO L481 AbstractCegarLoop]: Abstraction has 45349 states and 54743 transitions. [2020-10-29 08:40:39,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:40:39,941 INFO L276 IsEmpty]: Start isEmpty. Operand 45349 states and 54743 transitions. [2020-10-29 08:40:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2020-10-29 08:40:39,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:39,957 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:40:39,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:40:39,958 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:39,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:39,959 INFO L82 PathProgramCache]: Analyzing trace with hash -300879594, now seen corresponding path program 1 times [2020-10-29 08:40:39,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:39,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469881369] [2020-10-29 08:40:39,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:40,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:40,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:42,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:45,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:45,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1122 [2020-10-29 08:40:45,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:40:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 08:40:45,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:45,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:40:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:40:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:45,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:45,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:45,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:45,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:45,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:45,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:40:45,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:45,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:45,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:45,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:45,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:45,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:45,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:40:45,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:45,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 08:40:45,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:45,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:45,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:45,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:45,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:45,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:45,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:45,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:45,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:45,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:40:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:40:45,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:45,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:45,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:40:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:45,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:45,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:45,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:40:45,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:40:45,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:45,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:45,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:45,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:40:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:45,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:46,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:46,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:46,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 08:40:46,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:46,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:40:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:46,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:46,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:46,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:46,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:46,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:46,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:40:46,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:46,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:46,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:46,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:40:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:46,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:40:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:46,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:46,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:40:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:46,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-29 08:40:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:46,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:46,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 08:40:46,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:46,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:40:46,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:46,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:46,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:46,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-29 08:40:46,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:46,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 394 proven. 98 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2020-10-29 08:40:47,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469881369] [2020-10-29 08:40:47,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:47,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:40:47,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105714437] [2020-10-29 08:40:47,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:40:47,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:47,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:40:47,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:40:47,163 INFO L87 Difference]: Start difference. First operand 45349 states and 54743 transitions. Second operand 7 states. [2020-10-29 08:40:56,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:56,500 INFO L93 Difference]: Finished difference Result 91932 states and 110952 transitions. [2020-10-29 08:40:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:40:56,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1098 [2020-10-29 08:40:56,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:56,640 INFO L225 Difference]: With dead ends: 91932 [2020-10-29 08:40:56,640 INFO L226 Difference]: Without dead ends: 46589 [2020-10-29 08:40:56,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:40:56,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46589 states. [2020-10-29 08:40:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46589 to 45819. [2020-10-29 08:40:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45819 states. [2020-10-29 08:40:57,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45819 states to 45819 states and 53982 transitions. [2020-10-29 08:40:57,872 INFO L78 Accepts]: Start accepts. Automaton has 45819 states and 53982 transitions. Word has length 1098 [2020-10-29 08:40:57,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:57,873 INFO L481 AbstractCegarLoop]: Abstraction has 45819 states and 53982 transitions. [2020-10-29 08:40:57,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:40:57,873 INFO L276 IsEmpty]: Start isEmpty. Operand 45819 states and 53982 transitions. [2020-10-29 08:40:57,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1106 [2020-10-29 08:40:57,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:57,890 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:40:57,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:40:57,891 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:57,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:57,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1159507405, now seen corresponding path program 1 times [2020-10-29 08:40:57,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:57,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134952898] [2020-10-29 08:40:57,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:58,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:58,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:00,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:01,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:03,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:03,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1129 [2020-10-29 08:41:03,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:41:03,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-29 08:41:03,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:03,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:03,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:03,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-29 08:41:03,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 08:41:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:03,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:03,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:03,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:03,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:03,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:03,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:03,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:03,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:03,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:03,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:03,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:03,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:03,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:03,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:03,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:03,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 08:41:03,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:03,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:03,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:03,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:03,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:03,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:03,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:03,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:03,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:03,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:03,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:03,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:41:03,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:03,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:03,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:03,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:03,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:03,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:03,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:03,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:03,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:03,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:03,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:03,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:03,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:03,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:03,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:03,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-29 08:41:03,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:41:03,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:03,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:03,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:03,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:03,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:03,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:03,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-29 08:41:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:04,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:04,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:04,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:41:04,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:04,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:41:04,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:04,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 08:41:04,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:04,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-29 08:41:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:04,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:04,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:04,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 08:41:04,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 08:41:04,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:04,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:04,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:04,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:41:04,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-29 08:41:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 438 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-29 08:41:04,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134952898] [2020-10-29 08:41:04,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:04,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:41:04,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36135171] [2020-10-29 08:41:04,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:41:04,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:04,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:41:04,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:41:04,863 INFO L87 Difference]: Start difference. First operand 45819 states and 53982 transitions. Second operand 7 states. [2020-10-29 08:41:13,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:13,197 INFO L93 Difference]: Finished difference Result 98811 states and 116819 transitions. [2020-10-29 08:41:13,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:41:13,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1105 [2020-10-29 08:41:13,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:13,361 INFO L225 Difference]: With dead ends: 98811 [2020-10-29 08:41:13,362 INFO L226 Difference]: Without dead ends: 52998 [2020-10-29 08:41:13,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:41:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52998 states. [2020-10-29 08:41:14,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52998 to 52923. [2020-10-29 08:41:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52923 states. [2020-10-29 08:41:15,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52923 states to 52923 states and 61943 transitions. [2020-10-29 08:41:15,222 INFO L78 Accepts]: Start accepts. Automaton has 52923 states and 61943 transitions. Word has length 1105 [2020-10-29 08:41:15,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:15,223 INFO L481 AbstractCegarLoop]: Abstraction has 52923 states and 61943 transitions. [2020-10-29 08:41:15,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:41:15,223 INFO L276 IsEmpty]: Start isEmpty. Operand 52923 states and 61943 transitions. [2020-10-29 08:41:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1111 [2020-10-29 08:41:15,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:15,251 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:41:15,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:41:15,251 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:15,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:15,252 INFO L82 PathProgramCache]: Analyzing trace with hash -854778096, now seen corresponding path program 1 times [2020-10-29 08:41:15,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:15,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748411662] [2020-10-29 08:41:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:15,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:16,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:19,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:19,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1134 [2020-10-29 08:41:19,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:41:19,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3542 [2020-10-29 08:41:19,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:19,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:19,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-29 08:41:19,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 08:41:19,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:19,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:19,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:19,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:19,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:41:19,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:19,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:19,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:19,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:19,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:19,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:19,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:19,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:19,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-29 08:41:19,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:19,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:19,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:19,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:19,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:19,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:19,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:19,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:19,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:41:19,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:19,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:19,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:19,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:19,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:19,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:19,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:19,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:20,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:20,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:20,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:20,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:20,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:41:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:20,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:20,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:20,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:41:20,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 08:41:20,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:20,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 08:41:20,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:20,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:41:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:20,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:20,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:20,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:41:20,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:20,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:41:20,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:20,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:41:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:41:20,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 411 proven. 2 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-29 08:41:20,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748411662] [2020-10-29 08:41:20,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:20,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:41:20,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384210980] [2020-10-29 08:41:20,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:41:20,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:20,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:41:20,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:41:20,988 INFO L87 Difference]: Start difference. First operand 52923 states and 61943 transitions. Second operand 7 states. [2020-10-29 08:41:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:30,967 INFO L93 Difference]: Finished difference Result 114566 states and 135593 transitions. [2020-10-29 08:41:30,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:41:30,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1110 [2020-10-29 08:41:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:31,142 INFO L225 Difference]: With dead ends: 114566 [2020-10-29 08:41:31,143 INFO L226 Difference]: Without dead ends: 61649 [2020-10-29 08:41:31,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:41:31,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61649 states. [2020-10-29 08:41:32,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61649 to 61591. [2020-10-29 08:41:32,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61591 states. [2020-10-29 08:41:32,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61591 states to 61591 states and 71852 transitions. [2020-10-29 08:41:32,408 INFO L78 Accepts]: Start accepts. Automaton has 61591 states and 71852 transitions. Word has length 1110 [2020-10-29 08:41:32,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:32,409 INFO L481 AbstractCegarLoop]: Abstraction has 61591 states and 71852 transitions. [2020-10-29 08:41:32,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:41:32,409 INFO L276 IsEmpty]: Start isEmpty. Operand 61591 states and 71852 transitions. [2020-10-29 08:41:32,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1132 [2020-10-29 08:41:32,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:32,425 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:41:32,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:41:32,425 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:32,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:32,426 INFO L82 PathProgramCache]: Analyzing trace with hash 303342262, now seen corresponding path program 1 times [2020-10-29 08:41:32,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:32,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869107754] [2020-10-29 08:41:32,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:32,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1155 [2020-10-29 08:41:34,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1521 [2020-10-29 08:41:34,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-29 08:41:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 08:41:34,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:34,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:41:34,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:34,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:34,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:34,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:34,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 08:41:34,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:34,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:34,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:34,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:34,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:34,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:34,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:34,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:41:34,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:41:34,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:41:34,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:41:34,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:34,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:41:34,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:41:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:35,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:35,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:41:35,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:41:35,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:35,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:35,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:41:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:35,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 08:41:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 145 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-29 08:41:35,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869107754] [2020-10-29 08:41:35,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:35,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:41:35,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571538950] [2020-10-29 08:41:35,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:41:35,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:35,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:41:35,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:41:35,634 INFO L87 Difference]: Start difference. First operand 61591 states and 71852 transitions. Second operand 5 states. [2020-10-29 08:41:44,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:44,271 INFO L93 Difference]: Finished difference Result 137270 states and 161120 transitions. [2020-10-29 08:41:44,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:41:44,272 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1131 [2020-10-29 08:41:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:44,442 INFO L225 Difference]: With dead ends: 137270 [2020-10-29 08:41:44,443 INFO L226 Difference]: Without dead ends: 75685 [2020-10-29 08:41:44,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:41:44,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75685 states. [2020-10-29 08:41:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75685 to 74240. [2020-10-29 08:41:45,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74240 states. [2020-10-29 08:41:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74240 states to 74240 states and 85159 transitions. [2020-10-29 08:41:45,986 INFO L78 Accepts]: Start accepts. Automaton has 74240 states and 85159 transitions. Word has length 1131 [2020-10-29 08:41:45,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:45,987 INFO L481 AbstractCegarLoop]: Abstraction has 74240 states and 85159 transitions. [2020-10-29 08:41:45,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:41:45,988 INFO L276 IsEmpty]: Start isEmpty. Operand 74240 states and 85159 transitions. [2020-10-29 08:41:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2020-10-29 08:41:46,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:46,004 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:41:46,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:41:46,005 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:46,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:46,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1996152509, now seen corresponding path program 1 times [2020-10-29 08:41:46,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:46,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504187990] [2020-10-29 08:41:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:47,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:48,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:49,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:51,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1265 [2020-10-29 08:41:51,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:41:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 08:41:51,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:51,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-29 08:41:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 238 [2020-10-29 08:41:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:51,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:51,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:51,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:51,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:51,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:51,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:51,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:51,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:51,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:41:51,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:51,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:51,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:52,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:41:52,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-29 08:41:52,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:41:52,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 08:41:52,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:41:52,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-29 08:41:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 08:41:52,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-29 08:41:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-29 08:41:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1290 backedges. 733 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-29 08:41:53,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504187990] [2020-10-29 08:41:53,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:53,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:41:53,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9402064] [2020-10-29 08:41:53,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:41:53,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:53,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:41:53,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:41:53,603 INFO L87 Difference]: Start difference. First operand 74240 states and 85159 transitions. Second operand 7 states. [2020-10-29 08:42:03,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:42:03,682 INFO L93 Difference]: Finished difference Result 160634 states and 190009 transitions. [2020-10-29 08:42:03,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:42:03,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1241 [2020-10-29 08:42:03,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:42:03,882 INFO L225 Difference]: With dead ends: 160634 [2020-10-29 08:42:03,883 INFO L226 Difference]: Without dead ends: 86400 [2020-10-29 08:42:03,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:42:04,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86400 states. [2020-10-29 08:42:04,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86400 to 85580. [2020-10-29 08:42:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85580 states. [2020-10-29 08:42:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85580 states to 85580 states and 99642 transitions. [2020-10-29 08:42:05,150 INFO L78 Accepts]: Start accepts. Automaton has 85580 states and 99642 transitions. Word has length 1241 [2020-10-29 08:42:05,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:42:05,151 INFO L481 AbstractCegarLoop]: Abstraction has 85580 states and 99642 transitions. [2020-10-29 08:42:05,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:42:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 85580 states and 99642 transitions. [2020-10-29 08:42:05,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1310 [2020-10-29 08:42:05,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:42:05,168 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:42:05,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:42:05,169 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:42:05,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:42:05,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1692140660, now seen corresponding path program 1 times [2020-10-29 08:42:05,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:42:05,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356515876] [2020-10-29 08:42:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:42:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:06,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking...