/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --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=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:04:16,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:04:16,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:04:17,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:04:17,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:04:17,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:04:17,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:04:17,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:04:17,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:04:17,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:04:17,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:04:17,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:04:17,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:04:17,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:04:17,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:04:17,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:04:17,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:04:17,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:04:17,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:04:17,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:04:17,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:04:17,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:04:17,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:04:17,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:04:17,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:04:17,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:04:17,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:04:17,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:04:17,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:04:17,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:04:17,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:04:17,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:04:17,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:04:17,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:04:17,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:04:17,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:04:17,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:04:17,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:04:17,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:04:17,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:04:17,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:04:17,121 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 [2020-09-25 10:04:17,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:04:17,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:04:17,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:04:17,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:04:17,166 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:04:17,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:04:17,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:04:17,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:04:17,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:04:17,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:04:17,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:04:17,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:04:17,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:04:17,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:04:17,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:04:17,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:04:17,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:04:17,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:04:17,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:04:17,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:04:17,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:04:17,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:04:17,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:04:17,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:04:17,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:04:17,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:04:17,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:04:17,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:04:17,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:04:17,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement 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=0.1;log-additional-information=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=0.1;log-additional-information=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=0.1;log-additional-information=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=0.1;log-additional-information=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=0.1;log-additional-information=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=0.1;log-additional-information=true; [2020-09-25 10:04:17,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:04:17,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:04:17,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:04:17,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:04:17,688 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:04:17,689 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 10:04:17,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89be9f9e1/c4ee64145c1f4d3da074d078dc9190af/FLAG04b7f6740 [2020-09-25 10:04:18,391 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:04:18,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 10:04:18,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89be9f9e1/c4ee64145c1f4d3da074d078dc9190af/FLAG04b7f6740 [2020-09-25 10:04:18,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89be9f9e1/c4ee64145c1f4d3da074d078dc9190af [2020-09-25 10:04:18,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:04:18,653 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:04:18,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:04:18,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:04:18,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:04:18,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:18,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0a7f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18, skipping insertion in model container [2020-09-25 10:04:18,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:18,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:04:18,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:04:19,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:04:19,131 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:04:19,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:04:19,349 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:04:19,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19 WrapperNode [2020-09-25 10:04:19,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:04:19,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:04:19,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:04:19,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:04:19,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (1/1) ... [2020-09-25 10:04:19,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (1/1) ... [2020-09-25 10:04:19,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (1/1) ... [2020-09-25 10:04:19,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (1/1) ... [2020-09-25 10:04:19,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (1/1) ... [2020-09-25 10:04:19,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (1/1) ... [2020-09-25 10:04:19,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (1/1) ... [2020-09-25 10:04:19,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:04:19,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:04:19,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:04:19,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:04:19,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (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 [2020-09-25 10:04:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:04:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:04:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 10:04:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 10:04:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 10:04:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 10:04:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 10:04:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:04:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:04:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 10:04:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 10:04:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 10:04:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 10:04:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 10:04:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 10:04:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 10:04:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 10:04:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 10:04:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 10:04:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 10:04:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 10:04:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 10:04:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 10:04:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 10:04:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 10:04:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 10:04:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 10:04:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 10:04:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 10:04:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 10:04:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 10:04:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 10:04:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 10:04:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 10:04:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 10:04:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 10:04:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 10:04:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 10:04:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 10:04:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 10:04:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 10:04:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 10:04:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 10:04:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 10:04:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 10:04:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 10:04:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 10:04:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 10:04:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:04:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 10:04:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 10:04:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 10:04:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 10:04:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 10:04:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 10:04:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 10:04:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 10:04:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 10:04:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 10:04:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 10:04:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 10:04:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 10:04:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 10:04:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 10:04:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 10:04:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 10:04:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 10:04:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 10:04:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 10:04:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 10:04:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 10:04:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 10:04:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 10:04:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 10:04:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 10:04:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 10:04:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 10:04:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 10:04:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 10:04:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 10:04:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 10:04:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 10:04:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 10:04:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 10:04:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 10:04:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 10:04:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 10:04:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 10:04:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 10:04:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 10:04:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 10:04:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 10:04:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 10:04:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 10:04:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 10:04:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 10:04:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 10:04:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 10:04:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 10:04:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 10:04:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 10:04:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 10:04:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 10:04:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 10:04:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 10:04:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 10:04:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 10:04:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 10:04:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 10:04:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 10:04:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 10:04:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:04:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 10:04:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 10:04:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:04:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 10:04:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 10:04:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 10:04:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 10:04:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 10:04:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 10:04:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 10:04:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 10:04:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 10:04:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 10:04:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 10:04:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 10:04:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 10:04:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 10:04:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:04:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 10:04:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 10:04:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 10:04:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 10:04:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:04:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:04:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:04:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 10:04:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:04:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:04:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:04:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:04:20,070 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:04:20,071 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 10:04:20,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:04:20 BoogieIcfgContainer [2020-09-25 10:04:20,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:04:20,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:04:20,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:04:20,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:04:20,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:04:18" (1/3) ... [2020-09-25 10:04:20,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a99d54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:04:20, skipping insertion in model container [2020-09-25 10:04:20,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:19" (2/3) ... [2020-09-25 10:04:20,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a99d54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:04:20, skipping insertion in model container [2020-09-25 10:04:20,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:04:20" (3/3) ... [2020-09-25 10:04:20,090 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-25 10:04:20,102 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:04:20,112 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:04:20,135 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:04:20,169 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:04:20,169 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:04:20,169 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:04:20,170 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:04:20,170 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:04:20,170 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:04:20,170 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:04:20,170 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:04:20,196 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-25 10:04:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 10:04:20,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:20,209 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] [2020-09-25 10:04:20,210 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:20,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-25 10:04:20,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:20,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944852452] [2020-09-25 10:04:20,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:20,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:20,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:20,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:04:20,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:20,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-09-25 10:04:20,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:20,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:20,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:20,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 10:04:20,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:04:20,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:04:21,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:21,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:21,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:21,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:21,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:21,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 10:04:21,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:21,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:21,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:21,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:21,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:21,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:04:21,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944852452] [2020-09-25 10:04:21,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:04:21,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:04:21,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579963082] [2020-09-25 10:04:21,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:04:21,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:21,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:04:21,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:04:21,144 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-25 10:04:21,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:21,581 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-25 10:04:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:04:21,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 10:04:21,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:21,599 INFO L225 Difference]: With dead ends: 126 [2020-09-25 10:04:21,599 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 10:04:21,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:04:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 10:04:21,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-25 10:04:21,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 10:04:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-25 10:04:21,672 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-25 10:04:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:21,673 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-25 10:04:21,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:04:21,673 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-25 10:04:21,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 10:04:21,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:21,678 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 10:04:21,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:04:21,679 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:21,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:21,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-25 10:04:21,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:21,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631625370] [2020-09-25 10:04:21,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:21,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:21,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:22,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:26,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:26,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 10:04:26,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:04:26,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4448 [2020-09-25 10:04:26,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:26,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:04:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:04:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 10:04:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:04:26,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:26,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:26,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:26,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:26,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:26,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:04:26,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:26,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:04:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:26,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:26,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:26,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:26,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:26,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 10:04:26,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:26,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:26,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:26,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:26,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:04:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:26,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:26,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:26,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:26,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:26,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:04:26,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:26,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:26,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:26,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:26,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:26,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:26,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:26,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:26,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:26,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:26,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:26,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 10:04:26,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:26,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:26,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:26,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:26,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:26,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:26,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:26,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:04:26,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:26,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:26,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 10:04:26,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631625370] [2020-09-25 10:04:26,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:04:26,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:04:26,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242459839] [2020-09-25 10:04:26,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:04:26,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:26,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:04:26,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:04:26,801 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 8 states. [2020-09-25 10:04:27,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:27,514 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2020-09-25 10:04:27,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:04:27,514 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 10:04:27,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:27,517 INFO L225 Difference]: With dead ends: 101 [2020-09-25 10:04:27,517 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 10:04:27,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:04:27,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 10:04:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-09-25 10:04:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 10:04:27,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-25 10:04:27,535 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 61 [2020-09-25 10:04:27,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:27,536 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-25 10:04:27,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:04:27,536 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-25 10:04:27,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 10:04:27,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:27,539 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 10:04:27,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:04:27,539 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:27,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:27,540 INFO L82 PathProgramCache]: Analyzing trace with hash -497938342, now seen corresponding path program 1 times [2020-09-25 10:04:27,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:27,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731359253] [2020-09-25 10:04:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:27,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:27,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:29,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:04:32,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:04:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 10:04:32,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:04:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:04:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:04:32,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:32,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:04:32,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:04:32,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:32,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:04:32,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:32,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:32,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:04:32,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:32,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:32,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:32,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:32,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 10:04:32,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:32,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:32,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:04:32,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:32,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:04:32,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 10:04:32,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:04:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:04:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 10:04:32,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731359253] [2020-09-25 10:04:32,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:32,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 10:04:32,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085257790] [2020-09-25 10:04:32,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:04:32,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:32,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:04:32,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:04:32,938 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 9 states. [2020-09-25 10:04:33,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:33,550 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2020-09-25 10:04:33,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 10:04:33,552 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 10:04:33,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:33,554 INFO L225 Difference]: With dead ends: 96 [2020-09-25 10:04:33,555 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 10:04:33,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:04:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 10:04:33,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2020-09-25 10:04:33,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 10:04:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-09-25 10:04:33,584 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 70 [2020-09-25 10:04:33,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:33,585 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-09-25 10:04:33,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:04:33,585 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-09-25 10:04:33,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 10:04:33,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:33,591 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 10:04:33,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:04:33,591 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:33,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:33,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1150537932, now seen corresponding path program 1 times [2020-09-25 10:04:33,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:33,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165131947] [2020-09-25 10:04:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:33,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:33,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:33,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:34,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:37,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:37,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 10:04:37,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:04:37,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3824 [2020-09-25 10:04:37,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:37,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:04:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:04:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:04:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:37,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:37,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:37,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:37,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:04:37,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:37,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:37,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:37,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:37,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:04:37,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:37,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:37,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:37,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:37,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:37,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:37,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 10:04:37,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:37,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:37,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:37,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:37,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:37,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:37,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:37,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:37,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:04:37,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:37,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:37,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:37,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:37,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:37,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:37,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:37,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:37,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:37,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:37,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:04:37,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:37,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:37,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:37,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:37,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:37,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:37,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:37,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:04:37,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:37,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:37,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:37,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:37,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:37,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:37,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:37,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:37,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:37,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:37,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:37,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 10:04:37,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:37,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:37,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:37,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:04:37,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:38,040 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:04:38,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165131947] [2020-09-25 10:04:38,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:38,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 10:04:38,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060137826] [2020-09-25 10:04:38,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 10:04:38,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:38,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 10:04:38,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:04:38,044 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 16 states. [2020-09-25 10:04:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:39,469 INFO L93 Difference]: Finished difference Result 149 states and 165 transitions. [2020-09-25 10:04:39,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 10:04:39,469 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 10:04:39,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:39,472 INFO L225 Difference]: With dead ends: 149 [2020-09-25 10:04:39,473 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 10:04:39,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 10:04:39,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 10:04:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2020-09-25 10:04:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 10:04:39,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-09-25 10:04:39,507 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 71 [2020-09-25 10:04:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:39,511 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-09-25 10:04:39,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 10:04:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-09-25 10:04:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 10:04:39,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:39,513 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 10:04:39,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:04:39,514 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:39,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:39,514 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-25 10:04:39,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:39,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9337141] [2020-09-25 10:04:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:39,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:40,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:40,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 10:04:40,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:40,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 874 [2020-09-25 10:04:40,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:40,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:40,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 10:04:40,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 10:04:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 10:04:40,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:04:40,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:40,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:40,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:40,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:40,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:04:40,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:40,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:40,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:40,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:40,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:40,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:40,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:40,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 10:04:40,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:40,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 10:04:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:40,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:40,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:40,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:40,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:40,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:04:40,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:40,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:40,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:40,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:40,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:40,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 10:04:40,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:40,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:04:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:04:40,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:40,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:40,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:40,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:40,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:40,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:40,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 10:04:40,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:40,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:40,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:04:40,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:40,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:04:40,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:41,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:41,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:41,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:41,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:41,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:41,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 10:04:41,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:41,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:41,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 10:04:41,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9337141] [2020-09-25 10:04:41,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:41,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 10:04:41,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890107083] [2020-09-25 10:04:41,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 10:04:41,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:41,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 10:04:41,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 10:04:41,151 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 23 states. [2020-09-25 10:04:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:43,053 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2020-09-25 10:04:43,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 10:04:43,055 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 10:04:43,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:43,059 INFO L225 Difference]: With dead ends: 114 [2020-09-25 10:04:43,059 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 10:04:43,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 10:04:43,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 10:04:43,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 103. [2020-09-25 10:04:43,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 10:04:43,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 114 transitions. [2020-09-25 10:04:43,072 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 114 transitions. Word has length 71 [2020-09-25 10:04:43,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:43,073 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 114 transitions. [2020-09-25 10:04:43,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 10:04:43,073 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 114 transitions. [2020-09-25 10:04:43,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 10:04:43,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:43,075 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 10:04:43,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:04:43,075 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:43,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:43,075 INFO L82 PathProgramCache]: Analyzing trace with hash -173985679, now seen corresponding path program 1 times [2020-09-25 10:04:43,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:43,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826112245] [2020-09-25 10:04:43,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:43,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:43,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:43,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 10:04:45,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:04:45,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2353 [2020-09-25 10:04:45,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 10:04:45,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 10:04:45,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:04:45,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:45,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:04:45,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:04:45,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:45,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:45,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 10:04:45,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:04:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:04:45,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:45,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:45,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:04:45,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:04:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:04:45,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:45,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:45,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 10:04:45,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:45,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:46,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:46,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:46,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:46,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:46,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:04:46,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:46,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:46,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:46,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:46,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:46,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:46,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:46,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:04:46,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:46,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:46,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 10:04:46,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826112245] [2020-09-25 10:04:46,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:46,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 10:04:46,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360213533] [2020-09-25 10:04:46,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 10:04:46,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:46,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 10:04:46,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=545, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:04:46,219 INFO L87 Difference]: Start difference. First operand 103 states and 114 transitions. Second operand 25 states. [2020-09-25 10:04:48,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:48,555 INFO L93 Difference]: Finished difference Result 128 states and 146 transitions. [2020-09-25 10:04:48,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 10:04:48,556 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 71 [2020-09-25 10:04:48,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:48,559 INFO L225 Difference]: With dead ends: 128 [2020-09-25 10:04:48,559 INFO L226 Difference]: Without dead ends: 120 [2020-09-25 10:04:48,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=273, Invalid=2589, Unknown=0, NotChecked=0, Total=2862 [2020-09-25 10:04:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-25 10:04:48,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 89. [2020-09-25 10:04:48,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 10:04:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 96 transitions. [2020-09-25 10:04:48,574 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 96 transitions. Word has length 71 [2020-09-25 10:04:48,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:48,574 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 96 transitions. [2020-09-25 10:04:48,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 10:04:48,575 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2020-09-25 10:04:48,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 10:04:48,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:48,577 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 10:04:48,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:04:48,577 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:48,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:48,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1211655714, now seen corresponding path program 1 times [2020-09-25 10:04:48,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:48,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049657920] [2020-09-25 10:04:48,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:48,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:48,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:49,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:50,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:50,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 10:04:53,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:04:53,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 10:04:53,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:04:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:04:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 10:04:53,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:53,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:53,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:04:53,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:04:53,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:53,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:53,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:04:53,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:53,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:53,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:53,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:53,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:04:53,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:53,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:53,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:53,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 10:04:53,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:53,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:53,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:54,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:54,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:54,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 10:04:54,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:54,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:54,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:54,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:54,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:54,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:54,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:54,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:04:54,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:04:54,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 10:04:54,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:54,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:04:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:04:54,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:54,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 10:04:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:54,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:54,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:54,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:54,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 10:04:54,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:54,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:04:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:54,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 10:04:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:54,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:54,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:54,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:54,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:04:54,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:04:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:04:54,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:54,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:04:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:04:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 10:04:54,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049657920] [2020-09-25 10:04:54,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:54,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 10:04:54,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181941952] [2020-09-25 10:04:54,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 10:04:54,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:54,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 10:04:54,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:04:54,357 INFO L87 Difference]: Start difference. First operand 89 states and 96 transitions. Second operand 16 states. [2020-09-25 10:04:55,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:55,780 INFO L93 Difference]: Finished difference Result 148 states and 160 transitions. [2020-09-25 10:04:55,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 10:04:55,781 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 85 [2020-09-25 10:04:55,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:55,784 INFO L225 Difference]: With dead ends: 148 [2020-09-25 10:04:55,784 INFO L226 Difference]: Without dead ends: 96 [2020-09-25 10:04:55,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 10:04:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-25 10:04:55,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 79. [2020-09-25 10:04:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 10:04:55,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-09-25 10:04:55,811 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 85 [2020-09-25 10:04:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:55,811 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-09-25 10:04:55,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 10:04:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-09-25 10:04:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 10:04:55,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:55,813 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 10:04:55,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:04:55,813 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:55,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:55,814 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-25 10:04:55,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:55,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077603362] [2020-09-25 10:04:55,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:55,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:56,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 10:04:58,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:04:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2340 [2020-09-25 10:04:58,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 10:04:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 10:04:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 10:04:58,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:58,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:58,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:58,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:04:58,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:58,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:58,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:58,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:58,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:58,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 10:04:58,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:58,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:58,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 10:04:58,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:58,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:58,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:04:58,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:58,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:58,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:58,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 10:04:58,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:04:58,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:58,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:04:58,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:58,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:58,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:58,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 10:04:58,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:04:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:04:58,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:58,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:04:58,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:58,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:04:58,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:04:58,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 10:04:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:58,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:58,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:58,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 10:04:58,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:58,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 10:04:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:58,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:58,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:58,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:04:58,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:04:58,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:58,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:04:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:04:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 10:04:58,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077603362] [2020-09-25 10:04:58,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:58,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 10:04:58,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47574627] [2020-09-25 10:04:58,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 10:04:58,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:58,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 10:04:58,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 10:04:58,905 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 24 states. [2020-09-25 10:05:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:05:00,219 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2020-09-25 10:05:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 10:05:00,220 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 10:05:00,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:05:00,221 INFO L225 Difference]: With dead ends: 89 [2020-09-25 10:05:00,221 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 10:05:00,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 10:05:00,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 10:05:00,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-25 10:05:00,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 10:05:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 10:05:00,232 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 85 [2020-09-25 10:05:00,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:05:00,232 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 10:05:00,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 10:05:00,232 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 10:05:00,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 10:05:00,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:05:00,234 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 10:05:00,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:05:00,234 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:05:00,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:05:00,235 INFO L82 PathProgramCache]: Analyzing trace with hash 571953633, now seen corresponding path program 2 times [2020-09-25 10:05:00,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:05:00,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321581891] [2020-09-25 10:05:00,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:05:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 10:05:01,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:05:01,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1345 [2020-09-25 10:05:01,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:05:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 10:05:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 10:05:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:01,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:05:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:05:01,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:01,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:05:01,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:01,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:01,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:01,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:05:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:05:01,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:01,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:05:01,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:01,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:01,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:01,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:01,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:01,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:01,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:01,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:01,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:01,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:05:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:05:01,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:01,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:05:01,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:01,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:01,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:01,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:01,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:01,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:01,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:01,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:05:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:05:01,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:01,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:05:01,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:05:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:05:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:01,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 10:05:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:05:01,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:01,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:05:01,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:05:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:05:01,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:01,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 10:05:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:01,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:01,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:01,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:05:01,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:01,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:05:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:05:01,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 10:05:01,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321581891] [2020-09-25 10:05:01,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:05:01,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:05:01,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010795145] [2020-09-25 10:05:01,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:05:01,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:05:01,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:05:01,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:05:01,937 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 10 states. [2020-09-25 10:05:02,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:05:02,496 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2020-09-25 10:05:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:05:02,497 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 10:05:02,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:05:02,499 INFO L225 Difference]: With dead ends: 89 [2020-09-25 10:05:02,500 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 10:05:02,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:05:02,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 10:05:02,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-09-25 10:05:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 10:05:02,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-09-25 10:05:02,508 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 85 [2020-09-25 10:05:02,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:05:02,509 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-09-25 10:05:02,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:05:02,509 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-09-25 10:05:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 10:05:02,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:05:02,510 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 10:05:02,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 10:05:02,511 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:05:02,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:05:02,511 INFO L82 PathProgramCache]: Analyzing trace with hash 578402155, now seen corresponding path program 1 times [2020-09-25 10:05:02,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:05:02,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801685709] [2020-09-25 10:05:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:05:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:02,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:02,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:05,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 10:05:07,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:05:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:05:07,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:05:07,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:05:07,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 10:05:07,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:07,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:05:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:07,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:05:07,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:07,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:05:07,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:05:07,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:07,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:05:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:07,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:05:07,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:07,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:05:07,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:05:07,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:07,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:07,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:07,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:07,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:05:07,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:07,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:07,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:05:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:05:07,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:07,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:05:07,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:07,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:07,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:05:07,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:07,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:07,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:07,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:07,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:07,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:07,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:07,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:07,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:05:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:07,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:05:07,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:07,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:05:07,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:05:07,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:07,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:05:07,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:07,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 10:05:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:07,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:05:07,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:07,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:05:07,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:07,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:05:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:07,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 10:05:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:07,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:07,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:07,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:05:07,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:07,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:05:07,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:07,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:05:07,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 10:05:07,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801685709] [2020-09-25 10:05:07,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:05:07,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 10:05:07,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687801969] [2020-09-25 10:05:07,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:05:07,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:05:07,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:05:07,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:05:07,966 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 12 states.