/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=BIGGEST --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 [2020-09-24 20:28:53,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:28:53,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:28:53,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:28:53,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:28:53,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:28:53,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:28:53,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:28:53,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:28:53,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:28:53,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:28:53,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:28:53,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:28:53,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:28:53,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:28:53,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:28:53,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:28:53,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:28:53,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:28:53,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:28:53,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:28:53,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:28:53,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:28:53,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:28:53,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:28:53,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:28:53,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:28:53,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:28:53,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:28:53,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:28:53,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:28:53,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:28:53,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:28:53,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:28:53,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:28:53,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:28:53,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:28:53,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:28:53,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:28:53,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:28:53,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:28:53,164 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 [2020-09-24 20:28:53,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:28:53,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:28:53,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:28:53,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:28:53,207 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:28:53,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:28:53,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:28:53,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:28:53,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:28:53,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:28:53,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:28:53,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:28:53,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:28:53,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:28:53,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:28:53,210 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:28:53,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:28:53,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:28:53,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:28:53,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:28:53,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:28:53,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:28:53,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:28:53,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:28:53,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:28:53,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:28:53,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:28:53,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:28:53,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:28:53,214 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:28:53,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:28:53,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:28:53,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:28:53,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:28:53,724 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:28:53,725 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-24 20:28:53,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8fa0a0ba/9c770bc5e7214561b1c6d284b8e9da51/FLAG6fa2fda08 [2020-09-24 20:28:54,462 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:28:54,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-24 20:28:54,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8fa0a0ba/9c770bc5e7214561b1c6d284b8e9da51/FLAG6fa2fda08 [2020-09-24 20:28:54,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8fa0a0ba/9c770bc5e7214561b1c6d284b8e9da51 [2020-09-24 20:28:54,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:28:54,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:28:54,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:28:54,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:28:54,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:28:54,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:28:54" (1/1) ... [2020-09-24 20:28:54,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcb8091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:54, skipping insertion in model container [2020-09-24 20:28:54,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:28:54" (1/1) ... [2020-09-24 20:28:54,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:28:54,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:28:55,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:28:55,281 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:28:55,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:28:55,412 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:28:55,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55 WrapperNode [2020-09-24 20:28:55,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:28:55,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:28:55,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:28:55,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:28:55,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (1/1) ... [2020-09-24 20:28:55,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (1/1) ... [2020-09-24 20:28:55,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (1/1) ... [2020-09-24 20:28:55,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (1/1) ... [2020-09-24 20:28:55,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (1/1) ... [2020-09-24 20:28:55,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (1/1) ... [2020-09-24 20:28:55,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (1/1) ... [2020-09-24 20:28:55,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:28:55,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:28:55,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:28:55,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:28:55,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (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 [2020-09-24 20:28:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:28:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:28:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-24 20:28:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-24 20:28:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-24 20:28:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-24 20:28:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-24 20:28:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-24 20:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-24 20:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-24 20:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-24 20:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-24 20:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-24 20:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-24 20:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-24 20:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-24 20:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-24 20:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-24 20:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-24 20:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-24 20:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-24 20:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-24 20:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-24 20:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-24 20:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-24 20:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-24 20:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-24 20:28:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-24 20:28:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-24 20:28:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-24 20:28:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-24 20:28:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-24 20:28:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-24 20:28:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-24 20:28:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-24 20:28:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-24 20:28:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-24 20:28:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-24 20:28:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-24 20:28:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-24 20:28:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-24 20:28:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-24 20:28:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-24 20:28:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-24 20:28:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-24 20:28:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-24 20:28:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:28:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-24 20:28:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-24 20:28:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-24 20:28:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-24 20:28:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-24 20:28:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-24 20:28:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-24 20:28:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-24 20:28:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-24 20:28:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-24 20:28:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-24 20:28:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-24 20:28:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-24 20:28:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-24 20:28:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-24 20:28:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-24 20:28:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-24 20:28:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-24 20:28:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-24 20:28:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-24 20:28:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-24 20:28:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-24 20:28:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-24 20:28:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-24 20:28:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-24 20:28:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-24 20:28:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-24 20:28:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-24 20:28:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-24 20:28:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-24 20:28:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-24 20:28:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-24 20:28:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-24 20:28:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-24 20:28:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-24 20:28:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-24 20:28:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-24 20:28:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-24 20:28:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:28:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 20:28:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 20:28:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:28:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 20:28:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-24 20:28:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 20:28:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-24 20:28:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-24 20:28:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-24 20:28:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-24 20:28:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-24 20:28:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-24 20:28:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-24 20:28:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-24 20:28:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-24 20:28:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-24 20:28:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-24 20:28:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:28:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-24 20:28:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-24 20:28:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-24 20:28:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-24 20:28:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:28:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:28:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:28:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 20:28:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:28:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:28:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:28:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:28:56,135 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:28:56,136 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 20:28:56,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:28:56 BoogieIcfgContainer [2020-09-24 20:28:56,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:28:56,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:28:56,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:28:56,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:28:56,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:28:54" (1/3) ... [2020-09-24 20:28:56,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cee0dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:28:56, skipping insertion in model container [2020-09-24 20:28:56,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:55" (2/3) ... [2020-09-24 20:28:56,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cee0dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:28:56, skipping insertion in model container [2020-09-24 20:28:56,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:28:56" (3/3) ... [2020-09-24 20:28:56,152 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-24 20:28:56,164 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:28:56,176 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:28:56,199 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:28:56,229 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:28:56,230 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:28:56,230 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:28:56,230 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:28:56,230 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:28:56,230 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:28:56,230 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:28:56,231 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:28:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-24 20:28:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 20:28:56,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:56,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:56,263 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:56,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-24 20:28:56,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:56,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501434496] [2020-09-24 20:28:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:56,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:56,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:56,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 20:28:56,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:56,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-09-24 20:28:56,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:28:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 20:28:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:28:56,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:28:56,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:57,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:57,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:57,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:28:57,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:57,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:28:57,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:57,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:28:57,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501434496] [2020-09-24 20:28:57,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:57,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:28:57,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211261971] [2020-09-24 20:28:57,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:28:57,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:57,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:28:57,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:28:57,074 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-24 20:28:57,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:57,527 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-24 20:28:57,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:28:57,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-24 20:28:57,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:57,545 INFO L225 Difference]: With dead ends: 126 [2020-09-24 20:28:57,546 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 20:28:57,552 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 [2020-09-24 20:28:57,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 20:28:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-24 20:28:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 20:28:57,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-24 20:28:57,623 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-24 20:28:57,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:57,624 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-24 20:28:57,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:28:57,624 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-24 20:28:57,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 20:28:57,627 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:57,628 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] [2020-09-24 20:28:57,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:28:57,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:57,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:57,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-24 20:28:57,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:57,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985381086] [2020-09-24 20:28:57,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:57,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:57,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:58,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:02,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:02,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 20:29:02,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:29:02,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4336 [2020-09-24 20:29:02,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:02,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:29:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 20:29:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 20:29:02,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:29:02,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:02,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:02,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:02,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:29:02,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 20:29:02,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:29:02,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:02,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:29:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:02,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:02,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:02,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:02,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:02,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:29:02,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:29:02,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 20:29:02,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:02,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:02,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:02,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:02,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:02,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:29:02,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:02,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:02,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:02,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:02,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:02,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 20:29:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:02,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:02,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:02,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:02,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:02,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 20:29:02,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:29:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:02,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:02,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:02,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:02,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:02,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:02,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:29:02,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:02,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:02,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-24 20:29:02,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985381086] [2020-09-24 20:29:02,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:29:02,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:29:02,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181188724] [2020-09-24 20:29:02,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:29:02,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:02,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:29:02,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:29:02,598 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 8 states. [2020-09-24 20:29:03,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:03,438 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2020-09-24 20:29:03,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:29:03,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-24 20:29:03,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:03,441 INFO L225 Difference]: With dead ends: 101 [2020-09-24 20:29:03,442 INFO L226 Difference]: Without dead ends: 88 [2020-09-24 20:29:03,443 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 [2020-09-24 20:29:03,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-24 20:29:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-09-24 20:29:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 20:29:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-24 20:29:03,459 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 61 [2020-09-24 20:29:03,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:03,460 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-24 20:29:03,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:29:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-24 20:29:03,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 20:29:03,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:03,463 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] [2020-09-24 20:29:03,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:29:03,463 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:03,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:03,464 INFO L82 PathProgramCache]: Analyzing trace with hash -497938342, now seen corresponding path program 1 times [2020-09-24 20:29:03,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:03,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965548219] [2020-09-24 20:29:03,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:03,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:03,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:03,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:05,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:08,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:08,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 20:29:08,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:29:08,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 20:29:08,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:08,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:29:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 20:29:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 20:29:08,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:08,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:08,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:08,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:08,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:29:08,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:29:08,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:29:08,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:08,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:29:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:08,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:08,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:08,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:08,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:08,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 20:29:08,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:08,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:08,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:29:08,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:08,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:08,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:08,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:08,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:08,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:08,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:29:08,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:08,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:08,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 20:29:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:08,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:08,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:08,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:08,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:08,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 20:29:08,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:29:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:29:08,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:08,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:08,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:08,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:08,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:08,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:08,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 20:29:08,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:29:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:08,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:29:08,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:09,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 20:29:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:09,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:09,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:09,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:29:09,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:09,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:29:09,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:29:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:29:09,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 20:29:09,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965548219] [2020-09-24 20:29:09,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:29:09,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:29:09,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696178804] [2020-09-24 20:29:09,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:29:09,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:09,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:29:09,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:29:09,117 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 13 states. [2020-09-24 20:29:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:10,193 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2020-09-24 20:29:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 20:29:10,196 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 70 [2020-09-24 20:29:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:10,198 INFO L225 Difference]: With dead ends: 136 [2020-09-24 20:29:10,198 INFO L226 Difference]: Without dead ends: 92 [2020-09-24 20:29:10,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2020-09-24 20:29:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-24 20:29:10,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87. [2020-09-24 20:29:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 20:29:10,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-09-24 20:29:10,224 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 70 [2020-09-24 20:29:10,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:10,224 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-09-24 20:29:10,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:29:10,225 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-09-24 20:29:10,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 20:29:10,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:10,230 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] [2020-09-24 20:29:10,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:29:10,231 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:10,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:10,231 INFO L82 PathProgramCache]: Analyzing trace with hash 543302397, now seen corresponding path program 1 times [2020-09-24 20:29:10,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:10,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619586525] [2020-09-24 20:29:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:10,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:10,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:11,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:11,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 20:29:11,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:29:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1563 [2020-09-24 20:29:11,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:29:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 20:29:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:29:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:11,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:11,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:11,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:11,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:29:11,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:11,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:29:11,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:11,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:11,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:11,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:29:11,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:11,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:29:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:11,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:12,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:12,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:12,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:12,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 20:29:12,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:12,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:12,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:12,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:29:12,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:12,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:12,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:12,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:12,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:12,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:29:12,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:12,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:12,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:12,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:12,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:12,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 20:29:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:12,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:12,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:12,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:12,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:12,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:29:12,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:12,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:12,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:29:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:12,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:12,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:12,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:12,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:12,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:12,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:29:12,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:12,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:12,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 20:29:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:12,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:12,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:12,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:29:12,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:12,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 20:29:12,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:29:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:29:12,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:12,182 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 20:29:12,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619586525] [2020-09-24 20:29:12,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:29:12,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 20:29:12,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483197573] [2020-09-24 20:29:12,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:29:12,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:12,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:29:12,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:29:12,186 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 9 states. [2020-09-24 20:29:12,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:12,787 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2020-09-24 20:29:12,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:29:12,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-24 20:29:12,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:12,790 INFO L225 Difference]: With dead ends: 102 [2020-09-24 20:29:12,790 INFO L226 Difference]: Without dead ends: 97 [2020-09-24 20:29:12,794 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 [2020-09-24 20:29:12,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-24 20:29:12,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 90. [2020-09-24 20:29:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-24 20:29:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-09-24 20:29:12,819 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 70 [2020-09-24 20:29:12,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:12,819 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-09-24 20:29:12,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:29:12,820 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-09-24 20:29:12,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-24 20:29:12,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:12,821 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] [2020-09-24 20:29:12,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:29:12,824 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:12,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1063153905, now seen corresponding path program 1 times [2020-09-24 20:29:12,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:12,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416095663] [2020-09-24 20:29:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:12,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:13,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:13,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:17,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:17,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 20:29:17,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:29:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4256 [2020-09-24 20:29:17,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 20:29:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 20:29:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 20:29:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:17,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:17,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:17,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:17,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:29:17,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:17,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:29:17,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:17,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:17,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:29:17,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:17,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:29:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:17,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:17,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:17,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:17,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 20:29:17,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:29:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:29:17,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:29:17,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:17,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:17,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:17,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:17,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:17,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 20:29:17,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:29:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:29:17,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 20:29:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:17,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:17,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:17,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:17,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:17,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 20:29:17,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:17,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:29:17,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:29:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:17,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:17,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:17,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:17,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:17,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:17,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 20:29:17,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:29:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:29:17,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:18,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 20:29:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:18,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:18,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:18,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:29:18,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:18,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:29:18,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:18,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:29:18,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:29:18,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 20:29:18,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416095663] [2020-09-24 20:29:18,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:29:18,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 20:29:18,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409375828] [2020-09-24 20:29:18,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 20:29:18,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:18,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 20:29:18,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=503, Unknown=0, NotChecked=0, Total=552 [2020-09-24 20:29:18,149 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 24 states. [2020-09-24 20:29:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:20,598 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2020-09-24 20:29:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 20:29:20,599 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 71 [2020-09-24 20:29:20,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:20,602 INFO L225 Difference]: With dead ends: 117 [2020-09-24 20:29:20,602 INFO L226 Difference]: Without dead ends: 114 [2020-09-24 20:29:20,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=331, Invalid=2425, Unknown=0, NotChecked=0, Total=2756 [2020-09-24 20:29:20,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-24 20:29:20,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2020-09-24 20:29:20,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-24 20:29:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2020-09-24 20:29:20,620 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 71 [2020-09-24 20:29:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:20,621 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2020-09-24 20:29:20,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 20:29:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2020-09-24 20:29:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-24 20:29:20,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:20,623 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] [2020-09-24 20:29:20,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:29:20,623 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:20,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:20,624 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-24 20:29:20,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:20,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967621168] [2020-09-24 20:29:20,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:20,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:21,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:21,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 20:29:21,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:21,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 902 [2020-09-24 20:29:21,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:21,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 20:29:21,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 20:29:21,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 20:29:21,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:21,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:21,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:21,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:21,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:29:21,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:21,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:29:21,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:21,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:21,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:29:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:21,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:21,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:21,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:21,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:21,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 20:29:21,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:29:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 20:29:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:21,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:21,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:21,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:21,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:21,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:21,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:29:21,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:29:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:29:21,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:21,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 20:29:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:21,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:22,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:22,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:22,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:22,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 20:29:22,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:29:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:22,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:29:22,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:22,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:22,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:22,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:22,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:22,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 20:29:22,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:29:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:29:22,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:22,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 20:29:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:22,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:22,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:22,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:29:22,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:22,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:29:22,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:22,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:29:22,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:22,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:29:22,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:29:22,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967621168] [2020-09-24 20:29:22,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:29:22,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 20:29:22,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179072265] [2020-09-24 20:29:22,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 20:29:22,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:22,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 20:29:22,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-24 20:29:22,362 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 23 states. [2020-09-24 20:29:24,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:24,170 INFO L93 Difference]: Finished difference Result 125 states and 142 transitions. [2020-09-24 20:29:24,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 20:29:24,171 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-24 20:29:24,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:24,176 INFO L225 Difference]: With dead ends: 125 [2020-09-24 20:29:24,180 INFO L226 Difference]: Without dead ends: 117 [2020-09-24 20:29:24,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 20:29:24,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-24 20:29:24,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 87. [2020-09-24 20:29:24,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 20:29:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2020-09-24 20:29:24,213 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 71 [2020-09-24 20:29:24,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:24,213 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2020-09-24 20:29:24,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 20:29:24,216 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2020-09-24 20:29:24,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 20:29:24,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:24,218 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] [2020-09-24 20:29:24,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 20:29:24,218 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:24,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:24,218 INFO L82 PathProgramCache]: Analyzing trace with hash 2064251486, now seen corresponding path program 1 times [2020-09-24 20:29:24,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:24,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034730756] [2020-09-24 20:29:24,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:24,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:24,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:24,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:25,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:26,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:29,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:29,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 20:29:29,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:29:29,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 20:29:29,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:29,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 20:29:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 20:29:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 20:29:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:29,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:29,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:29,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:29,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:29:29,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:29:29,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:29:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:29,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:29:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:29,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:29,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:29,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:29,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:29,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 20:29:29,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:29,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:29:29,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:29:29,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:29:29,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:29,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:29,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:29,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:29,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:29,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 20:29:29,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:29:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:29,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:29:29,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:29,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 20:29:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:29,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:29,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:29,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:29,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:29,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 20:29:29,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:29,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:29:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:29:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:29,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:29,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:30,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:30,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:30,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:30,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 20:29:30,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:30,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:29:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:29:30,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:30,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 20:29:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:30,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:30,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:30,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:29:30,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:30,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:29:30,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:30,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:29:30,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:30,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 20:29:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:30,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:30,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:30,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:29:30,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:30,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 20:29:30,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:29:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:29:30,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:30,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 20:29:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:30,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:30,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:30,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:29:30,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:30,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:29:30,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:30,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:29:30,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:30,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:29:30,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:30,292 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 20:29:30,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034730756] [2020-09-24 20:29:30,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:29:30,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 20:29:30,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502478934] [2020-09-24 20:29:30,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 20:29:30,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:30,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 20:29:30,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:29:30,295 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 25 states. [2020-09-24 20:29:32,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:32,497 INFO L93 Difference]: Finished difference Result 108 states and 123 transitions. [2020-09-24 20:29:32,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 20:29:32,499 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 85 [2020-09-24 20:29:32,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:32,502 INFO L225 Difference]: With dead ends: 108 [2020-09-24 20:29:32,502 INFO L226 Difference]: Without dead ends: 101 [2020-09-24 20:29:32,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=360, Invalid=2502, Unknown=0, NotChecked=0, Total=2862 [2020-09-24 20:29:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-24 20:29:32,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2020-09-24 20:29:32,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-24 20:29:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2020-09-24 20:29:32,517 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 85 [2020-09-24 20:29:32,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:32,518 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2020-09-24 20:29:32,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 20:29:32,518 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2020-09-24 20:29:32,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 20:29:32,520 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:32,520 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] [2020-09-24 20:29:32,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 20:29:32,521 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:32,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:32,521 INFO L82 PathProgramCache]: Analyzing trace with hash 602914660, now seen corresponding path program 2 times [2020-09-24 20:29:32,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:32,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561608083] [2020-09-24 20:29:32,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:32,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:32,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:33,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 20:29:37,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:29:37,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 20:29:37,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:29:37,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 20:29:37,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 20:29:37,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:29:37,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:29:37,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:29:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:37,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:37,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:37,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:29:37,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:37,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:37,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:37,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:37,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:29:37,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:37,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 20:29:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:37,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:37,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:29:37,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:37,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:37,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:37,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:29:37,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:37,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:37,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 20:29:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:37,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:29:37,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:37,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:29:37,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:29:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:29:37,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-24 20:29:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:29:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:29:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:29:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:29:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 20:29:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:37,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:37,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:37,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:29:37,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:37,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 20:29:37,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:29:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:29:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 20:29:37,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561608083] [2020-09-24 20:29:37,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:29:37,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 20:29:37,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382310795] [2020-09-24 20:29:37,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:29:37,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:29:37,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:29:37,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:29:37,871 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 10 states. [2020-09-24 20:29:38,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:29:38,456 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2020-09-24 20:29:38,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:29:38,457 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-24 20:29:38,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:29:38,458 INFO L225 Difference]: With dead ends: 107 [2020-09-24 20:29:38,458 INFO L226 Difference]: Without dead ends: 100 [2020-09-24 20:29:38,460 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 [2020-09-24 20:29:38,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-24 20:29:38,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2020-09-24 20:29:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-24 20:29:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2020-09-24 20:29:38,486 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 85 [2020-09-24 20:29:38,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:29:38,486 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2020-09-24 20:29:38,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:29:38,487 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2020-09-24 20:29:38,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 20:29:38,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:29:38,493 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] [2020-09-24 20:29:38,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 20:29:38,493 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:29:38,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:29:38,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-24 20:29:38,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:29:38,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131092698] [2020-09-24 20:29:38,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:29:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:38,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:39,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:40,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:40,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 20:29:40,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:29:40,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2207 [2020-09-24 20:29:40,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 20:29:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 20:29:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 20:29:40,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:40,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:29:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:40,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:40,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:40,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:29:40,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:40,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:29:40,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:29:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:29:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:40,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:29:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:40,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:40,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:40,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:40,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:40,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:29:40,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:40,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:29:40,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:40,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 20:29:40,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:40,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:40,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:40,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:40,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:40,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:40,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:29:40,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:40,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:29:40,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:40,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:29:40,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:40,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 20:29:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:40,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:41,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:41,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:29:41,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:41,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 20:29:41,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:41,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:29:41,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:41,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:29:41,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:41,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:29:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:41,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:41,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:41,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:29:41,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:41,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 20:29:41,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:29:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:29:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:29:41,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 20:29:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:41,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:29:41,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:29:41,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:29:41,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:29:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:29:41,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:29:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:29:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:29:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:29:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:29:41,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 20:29:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:29:41,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking...