/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:26:55,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:26:55,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:26:55,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:26:55,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:26:55,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:26:55,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:26:55,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:26:55,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:26:55,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:26:55,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:26:55,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:26:55,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:26:55,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:26:55,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:26:55,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:26:55,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:26:55,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:26:55,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:26:55,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:26:55,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:26:55,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:26:55,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:26:55,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:26:55,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:26:55,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:26:55,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:26:55,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:26:55,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:26:55,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:26:55,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:26:55,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:26:55,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:26:55,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:26:55,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:26:55,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:26:55,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:26:55,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:26:55,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:26:55,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:26:55,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:26:55,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:26:55,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:26:55,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:26:55,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:26:55,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:26:55,850 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:26:55,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:26:55,850 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:26:55,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:26:55,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:26:55,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:26:55,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:26:55,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:26:55,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:26:55,852 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:26:55,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:26:55,852 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:26:55,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:26:55,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:26:55,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:26:55,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:26:55,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:26:55,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:26:55,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:26:55,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:26:55,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:26:55,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:26:55,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:26:55,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:26:55,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:26:55,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:26:56,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:26:56,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:26:56,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:26:56,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:26:56,376 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:26:56,377 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 13:26:56,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35413cf68/589550e2c74a4de1a0d73b69d4edaf41/FLAGc2e891211 [2020-09-25 13:26:56,988 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:26:56,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 13:26:57,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35413cf68/589550e2c74a4de1a0d73b69d4edaf41/FLAGc2e891211 [2020-09-25 13:26:57,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35413cf68/589550e2c74a4de1a0d73b69d4edaf41 [2020-09-25 13:26:57,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:26:57,293 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:26:57,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:26:57,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:26:57,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:26:57,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:26:57" (1/1) ... [2020-09-25 13:26:57,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742dacf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:57, skipping insertion in model container [2020-09-25 13:26:57,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:26:57" (1/1) ... [2020-09-25 13:26:57,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:26:57,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:26:57,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:26:57,825 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:26:57,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:26:58,061 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:26:58,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58 WrapperNode [2020-09-25 13:26:58,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:26:58,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:26:58,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:26:58,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:26:58,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:26:58,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:26:58,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:26:58,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:26:58,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:26:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:26:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:26:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 13:26:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 13:26:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 13:26:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 13:26:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 13:26:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:26:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:26:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 13:26:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 13:26:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 13:26:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 13:26:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 13:26:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 13:26:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 13:26:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 13:26:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 13:26:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 13:26:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 13:26:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 13:26:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 13:26:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 13:26:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 13:26:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 13:26:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 13:26:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 13:26:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 13:26:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 13:26:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 13:26:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 13:26:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 13:26:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 13:26:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 13:26:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 13:26:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 13:26:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 13:26:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 13:26:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 13:26:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 13:26:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 13:26:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 13:26:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 13:26:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 13:26:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 13:26:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 13:26:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 13:26:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 13:26:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:26:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 13:26:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 13:26:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 13:26:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 13:26:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 13:26:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 13:26:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 13:26:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 13:26:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 13:26:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 13:26:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 13:26:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 13:26:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 13:26:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 13:26:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 13:26:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 13:26:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 13:26:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 13:26:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 13:26:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 13:26:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 13:26:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 13:26:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 13:26:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 13:26:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 13:26:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 13:26:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 13:26:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 13:26:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 13:26:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 13:26:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 13:26:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 13:26:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 13:26:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 13:26:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 13:26:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 13:26:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 13:26:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 13:26:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 13:26:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 13:26:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 13:26:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 13:26:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 13:26:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 13:26:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 13:26:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 13:26:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 13:26:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 13:26:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 13:26:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 13:26:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 13:26:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 13:26:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 13:26:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 13:26:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 13:26:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 13:26:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 13:26:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 13:26:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 13:26:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 13:26:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 13:26:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 13:26:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:26:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 13:26:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 13:26:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:26:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 13:26:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 13:26:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 13:26:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 13:26:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 13:26:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 13:26:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 13:26:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 13:26:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 13:26:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 13:26:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 13:26:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 13:26:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 13:26:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 13:26:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:26:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 13:26:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 13:26:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 13:26:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 13:26:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:26:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:26:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:26:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 13:26:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:26:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:26:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:26:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:26:58,822 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:26:58,823 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 13:26:58,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:58 BoogieIcfgContainer [2020-09-25 13:26:58,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:26:58,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:26:58,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:26:58,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:26:58,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:26:57" (1/3) ... [2020-09-25 13:26:58,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c5a376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:58, skipping insertion in model container [2020-09-25 13:26:58,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58" (2/3) ... [2020-09-25 13:26:58,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c5a376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:58, skipping insertion in model container [2020-09-25 13:26:58,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:58" (3/3) ... [2020-09-25 13:26:58,837 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 13:26:58,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:26:58,855 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:26:58,877 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:26:58,903 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:26:58,903 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:26:58,903 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:26:58,903 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:26:58,903 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:26:58,903 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:26:58,904 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:26:58,904 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:26:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 13:26:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 13:26:58,933 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:58,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:58,935 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:58,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:58,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 13:26:58,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:58,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455142566] [2020-09-25 13:26:58,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:59,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:59,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:59,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 13:26:59,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:59,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 13:26:59,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:59,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:26:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 13:26:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:26:59,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:26:59,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:59,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:59,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:59,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:26:59,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:59,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:26:59,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:59,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:59,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:59,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455142566] [2020-09-25 13:26:59,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:59,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:26:59,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772750895] [2020-09-25 13:26:59,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:26:59,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:59,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:26:59,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:26:59,713 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 13:27:00,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:00,139 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 13:27:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:27:00,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 13:27:00,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:00,156 INFO L225 Difference]: With dead ends: 128 [2020-09-25 13:27:00,157 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 13:27:00,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:27:00,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 13:27:00,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 13:27:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 13:27:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 13:27:00,219 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 13:27:00,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:00,220 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 13:27:00,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:27:00,220 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 13:27:00,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 13:27:00,224 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:00,224 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:00,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:27:00,225 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:00,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 13:27:00,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:00,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276133463] [2020-09-25 13:27:00,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:00,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:00,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:01,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:04,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:04,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 13:27:04,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:27:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4251 [2020-09-25 13:27:04,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:04,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:27:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:27:04,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:04,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:04,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:04,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:04,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 13:27:04,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:04,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:04,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:04,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:27:04,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:04,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:04,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:04,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:04,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 13:27:04,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:04,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:04,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:04,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:04,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:27:04,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:04,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:04,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:04,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:04,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:27:04,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:04,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:04,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:04,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:05,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:05,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:05,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 13:27:05,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:05,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:05,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:05,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:05,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:05,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:05,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:05,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:05,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:05,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:27:05,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:05,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 13:27:05,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276133463] [2020-09-25 13:27:05,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:27:05,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:27:05,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076614039] [2020-09-25 13:27:05,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:27:05,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:05,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:27:05,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:27:05,089 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 8 states. [2020-09-25 13:27:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:05,944 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2020-09-25 13:27:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:27:05,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 13:27:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:05,948 INFO L225 Difference]: With dead ends: 104 [2020-09-25 13:27:05,948 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 13:27:05,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:27:05,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 13:27:05,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-09-25 13:27:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 13:27:05,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2020-09-25 13:27:05,989 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 61 [2020-09-25 13:27:05,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:05,991 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-09-25 13:27:05,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:27:05,992 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2020-09-25 13:27:05,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 13:27:05,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:05,995 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:05,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:27:05,995 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:05,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:05,996 INFO L82 PathProgramCache]: Analyzing trace with hash -116378698, now seen corresponding path program 1 times [2020-09-25 13:27:05,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:05,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778629429] [2020-09-25 13:27:05,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:06,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:06,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:06,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:07,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:11,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:11,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:27:11,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:27:11,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 13:27:11,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:11,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:27:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:27:11,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:11,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:11,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:11,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:11,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:11,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:11,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:27:11,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:11,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:11,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:11,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:11,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:11,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:11,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:11,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:27:11,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:11,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:11,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:11,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:11,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:11,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:11,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:11,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:11,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:11,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:11,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:11,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:27:11,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:11,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:11,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:11,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:11,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:11,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:11,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:11,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:11,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:27:11,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:11,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:11,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:11,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:27:11,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:11,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:11,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:11,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:11,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:11,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:27:11,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:11,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:11,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:11,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:11,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:11,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:11,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:11,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:27:11,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:11,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:27:11,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:11,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:27:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 13:27:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 13:27:11,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778629429] [2020-09-25 13:27:11,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:11,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:27:11,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839125587] [2020-09-25 13:27:11,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:27:11,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:11,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:27:11,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:27:11,517 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand 9 states. [2020-09-25 13:27:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:12,187 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2020-09-25 13:27:12,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:27:12,188 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 13:27:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:12,191 INFO L225 Difference]: With dead ends: 112 [2020-09-25 13:27:12,191 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 13:27:12,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:27:12,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 13:27:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2020-09-25 13:27:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 13:27:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-25 13:27:12,206 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 70 [2020-09-25 13:27:12,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:12,206 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-25 13:27:12,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:27:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-25 13:27:12,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 13:27:12,208 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:12,208 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:12,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:27:12,209 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:12,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:12,209 INFO L82 PathProgramCache]: Analyzing trace with hash 2087874581, now seen corresponding path program 1 times [2020-09-25 13:27:12,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:12,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122785897] [2020-09-25 13:27:12,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:12,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:13,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:15,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:15,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 13:27:15,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:27:15,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3753 [2020-09-25 13:27:15,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:15,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:27:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:27:15,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:16,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:16,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:16,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:16,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:16,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:16,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 13:27:16,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:16,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:16,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:16,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:16,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:16,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:16,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:16,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:16,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:16,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:16,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:16,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 13:27:16,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:16,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:16,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:16,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:16,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:16,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:16,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:16,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:16,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:16,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:16,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:16,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:27:16,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:16,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:16,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:16,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:16,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:16,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:16,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:16,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 13:27:16,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:16,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:16,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:16,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:16,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:16,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:16,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:16,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 13:27:16,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:16,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:16,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:16,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:16,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:16,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:16,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 13:27:16,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:16,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:16,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:16,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:27:16,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:16,454 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 13:27:16,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122785897] [2020-09-25 13:27:16,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:27:16,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 13:27:16,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478182038] [2020-09-25 13:27:16,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:27:16,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:16,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:27:16,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:27:16,459 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 13 states. [2020-09-25 13:27:17,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:17,620 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2020-09-25 13:27:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 13:27:17,621 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-09-25 13:27:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:17,624 INFO L225 Difference]: With dead ends: 176 [2020-09-25 13:27:17,624 INFO L226 Difference]: Without dead ends: 112 [2020-09-25 13:27:17,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2020-09-25 13:27:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-25 13:27:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-09-25 13:27:17,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 13:27:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-09-25 13:27:17,640 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 71 [2020-09-25 13:27:17,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:17,640 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-09-25 13:27:17,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:27:17,641 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-09-25 13:27:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 13:27:17,642 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:17,642 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:17,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:27:17,642 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:17,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:17,643 INFO L82 PathProgramCache]: Analyzing trace with hash 6599122, now seen corresponding path program 1 times [2020-09-25 13:27:17,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:17,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093575005] [2020-09-25 13:27:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:17,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:17,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:18,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:21,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:21,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 13:27:21,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:27:21,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3686 [2020-09-25 13:27:21,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:21,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:27:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:27:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:21,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:21,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:21,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:21,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:21,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:27:21,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:21,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:21,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:21,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:21,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:21,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:21,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 13:27:21,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:21,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:21,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:21,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:21,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:21,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:21,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:21,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:21,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:27:21,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:21,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:21,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:21,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:21,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:21,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:21,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:21,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:27:21,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:21,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:21,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:21,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:21,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:21,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:21,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:27:21,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:21,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:21,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:21,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:21,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:21,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:21,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:21,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:21,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:27:21,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:21,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:27:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:21,990 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 13:27:21,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093575005] [2020-09-25 13:27:21,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:21,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 13:27:21,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707003062] [2020-09-25 13:27:21,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 13:27:21,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:21,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 13:27:21,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:27:21,994 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 16 states. [2020-09-25 13:27:23,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:23,717 INFO L93 Difference]: Finished difference Result 184 states and 216 transitions. [2020-09-25 13:27:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 13:27:23,718 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 13:27:23,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:23,722 INFO L225 Difference]: With dead ends: 184 [2020-09-25 13:27:23,722 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 13:27:23,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 13:27:23,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 13:27:23,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 99. [2020-09-25 13:27:23,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 13:27:23,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-09-25 13:27:23,748 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 71 [2020-09-25 13:27:23,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:23,748 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-09-25 13:27:23,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 13:27:23,749 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-09-25 13:27:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 13:27:23,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:23,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:23,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:27:23,751 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:23,751 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 13:27:23,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:23,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641655597] [2020-09-25 13:27:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:24,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:24,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 13:27:24,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-09-25 13:27:24,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:24,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 13:27:24,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 13:27:24,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 13:27:24,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:24,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:24,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:24,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:24,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:24,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:24,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:27:24,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:24,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:24,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:24,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:24,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:24,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:24,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:24,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:24,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 13:27:24,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:24,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:24,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:24,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:24,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:27:24,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:24,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:24,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:24,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:24,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:24,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:24,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:27:24,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:24,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:24,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:24,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:24,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:24,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:24,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:24,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:24,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 13:27:24,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:24,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:27:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 13:27:24,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:24,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:24,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:25,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:25,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:25,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:25,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 13:27:25,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:25,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:25,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:27:25,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:25,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:27:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:25,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:25,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:25,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:25,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:25,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:25,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 13:27:25,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:25,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:25,216 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 13:27:25,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641655597] [2020-09-25 13:27:25,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:25,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 13:27:25,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391922679] [2020-09-25 13:27:25,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 13:27:25,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:25,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 13:27:25,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 13:27:25,218 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 23 states. [2020-09-25 13:27:26,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:26,878 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-09-25 13:27:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 13:27:26,879 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 13:27:26,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:26,881 INFO L225 Difference]: With dead ends: 118 [2020-09-25 13:27:26,881 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 13:27:26,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 13:27:26,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 13:27:26,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-25 13:27:26,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 13:27:26,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 13:27:26,895 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 71 [2020-09-25 13:27:26,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:26,896 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 13:27:26,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 13:27:26,896 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 13:27:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 13:27:26,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:26,898 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:26,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:27:26,898 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:26,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:26,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 13:27:26,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:26,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59931993] [2020-09-25 13:27:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:26,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:27,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 13:27:29,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:27:29,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2134 [2020-09-25 13:27:29,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 13:27:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 13:27:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 13:27:29,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:29,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:29,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:27:29,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:29,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:29,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:29,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:29,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:29,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 13:27:29,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:27:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:29,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:29,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:29,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:29,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:27:29,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:29,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:29,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:29,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 13:27:29,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:27:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 13:27:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:29,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:29,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:29,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 13:27:29,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:27:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:27:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:29,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:29,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:27:29,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:29,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:27:29,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:27:29,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:29,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 13:27:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:29,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:29,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 13:27:29,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:29,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 13:27:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:29,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:29,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:29,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:27:29,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:29,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:27:29,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:29,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:29,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:27:29,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:29,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:27:29,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:27:29,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59931993] [2020-09-25 13:27:29,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:29,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 13:27:29,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960607071] [2020-09-25 13:27:29,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 13:27:29,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:29,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 13:27:29,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:27:29,817 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 24 states. [2020-09-25 13:27:31,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:31,364 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 13:27:31,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 13:27:31,365 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 13:27:31,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:31,367 INFO L225 Difference]: With dead ends: 104 [2020-09-25 13:27:31,367 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 13:27:31,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 13:27:31,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 13:27:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2020-09-25 13:27:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 13:27:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2020-09-25 13:27:31,382 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 85 [2020-09-25 13:27:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:31,382 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2020-09-25 13:27:31,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 13:27:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2020-09-25 13:27:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 13:27:31,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:31,384 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:31,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:27:31,385 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:31,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1173492322, now seen corresponding path program 2 times [2020-09-25 13:27:31,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:31,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549779414] [2020-09-25 13:27:31,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:31,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:31,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:32,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:32,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 13:27:32,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:27:32,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1427 [2020-09-25 13:27:32,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:32,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:27:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 13:27:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:27:32,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:32,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:32,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:32,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:32,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:32,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:32,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:27:32,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:32,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:32,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:32,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:32,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:32,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:27:32,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:32,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:32,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:32,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:32,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:32,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:32,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:27:32,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:32,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:32,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:32,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:32,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:32,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:32,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:32,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:32,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:32,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:32,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:27:32,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:32,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:32,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:32,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:32,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:32,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:32,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:27:32,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:32,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:32,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:32,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:32,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:32,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:32,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:32,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:32,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:27:32,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:32,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:32,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:27:32,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:32,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:32,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:33,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 13:27:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:33,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:33,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:33,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:27:33,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:33,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:27:33,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:33,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:27:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 13:27:33,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:33,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 13:27:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:33,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:33,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:33,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:27:33,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:27:33,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:33,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:27:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 13:27:33,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549779414] [2020-09-25 13:27:33,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:33,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:27:33,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125072074] [2020-09-25 13:27:33,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:27:33,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:33,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:27:33,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:27:33,124 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand 10 states. [2020-09-25 13:27:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:33,691 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2020-09-25 13:27:33,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:27:33,692 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 13:27:33,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:33,693 INFO L225 Difference]: With dead ends: 113 [2020-09-25 13:27:33,693 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 13:27:33,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:27:33,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 13:27:33,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-25 13:27:33,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 13:27:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 13:27:33,711 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 13:27:33,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:33,714 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 13:27:33,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:27:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 13:27:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 13:27:33,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:33,722 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:33,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:27:33,722 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:33,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:33,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 13:27:33,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:33,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342460005] [2020-09-25 13:27:33,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:33,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:33,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:33,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:36,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:37,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:38,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 13:27:38,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:38,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:38,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:38,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:38,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:38,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:38,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:27:38,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:38,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:38,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:38,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:38,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:38,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:38,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:38,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:38,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:27:38,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:38,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:38,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:38,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:38,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:38,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:38,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:38,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:38,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:27:38,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:38,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:38,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:38,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:38,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:38,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:38,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:38,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:38,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:27:38,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:38,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:38,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:38,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:38,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:38,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:39,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:39,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:39,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:39,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:27:39,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:39,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:39,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:39,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:39,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:39,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:39,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:39,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:27:39,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 13:27:39,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:39,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:27:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 13:27:39,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:39,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 13:27:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:39,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:39,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:39,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:39,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:39,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:27:39,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:39,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:27:39,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:39,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 13:27:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:39,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:39,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:39,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:27:39,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:39,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:27:39,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:39,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:39,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:39,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:39,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:27:39,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 13:27:39,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342460005] [2020-09-25 13:27:39,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:39,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 13:27:39,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345189377] [2020-09-25 13:27:39,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:27:39,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:39,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:27:39,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:27:39,183 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 12 states. [2020-09-25 13:27:40,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:40,171 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2020-09-25 13:27:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 13:27:40,171 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-09-25 13:27:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:40,173 INFO L225 Difference]: With dead ends: 117 [2020-09-25 13:27:40,174 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 13:27:40,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:27:40,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 13:27:40,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-09-25 13:27:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-25 13:27:40,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2020-09-25 13:27:40,185 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 86 [2020-09-25 13:27:40,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:40,185 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2020-09-25 13:27:40,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:27:40,185 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2020-09-25 13:27:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 13:27:40,187 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:40,187 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:27:40,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 13:27:40,187 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:40,188 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-25 13:27:40,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:40,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377216090] [2020-09-25 13:27:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:27:40,212 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:27:40,213 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:27:40,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 13:27:40,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:27:40 BoogieIcfgContainer [2020-09-25 13:27:40,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:27:40,245 INFO L168 Benchmark]: Toolchain (without parser) took 42955.52 ms. Allocated memory was 145.8 MB in the beginning and 498.1 MB in the end (delta: 352.3 MB). Free memory was 101.4 MB in the beginning and 390.2 MB in the end (delta: -288.8 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:40,246 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:27:40,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.50 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 168.1 MB in the end (delta: -67.4 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:40,247 INFO L168 Benchmark]: Boogie Preprocessor took 72.62 ms. Allocated memory is still 202.9 MB. Free memory was 168.1 MB in the beginning and 165.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:40,248 INFO L168 Benchmark]: RCFGBuilder took 692.11 ms. Allocated memory is still 202.9 MB. Free memory was 165.3 MB in the beginning and 117.9 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:40,249 INFO L168 Benchmark]: TraceAbstraction took 41412.92 ms. Allocated memory was 202.9 MB in the beginning and 498.1 MB in the end (delta: 295.2 MB). Free memory was 117.3 MB in the beginning and 390.2 MB in the end (delta: -273.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:40,253 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.50 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 168.1 MB in the end (delta: -67.4 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.62 ms. Allocated memory is still 202.9 MB. Free memory was 168.1 MB in the beginning and 165.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 692.11 ms. Allocated memory is still 202.9 MB. Free memory was 165.3 MB in the beginning and 117.9 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41412.92 ms. Allocated memory was 202.9 MB in the beginning and 498.1 MB in the end (delta: 295.2 MB). Free memory was 117.3 MB in the beginning and 390.2 MB in the end (delta: -273.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L867] void * guard_malloc_counter = 0; [L887] struct list_head *elem = ((void *)0); [L900] static struct list_head head; [L903] struct list_head *dev1, *dev2; [L904] CALL, EXPR my_malloc(sizeof(*dev1)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L904] RET, EXPR my_malloc(sizeof(*dev1)) [L904] dev1 = my_malloc(sizeof(*dev1)) [L905] CALL, EXPR my_malloc(sizeof(*dev2)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L905] RET, EXPR my_malloc(sizeof(*dev2)) [L905] dev2 = my_malloc(sizeof(*dev2)) [L906] COND TRUE dev1!=((void *)0) && dev2!=((void *)0) [L907] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L907] RET list_add(dev2, &head) [L908] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND TRUE __VERIFIER_nondet_int() [L892] elem = new [L908] RET list_add(dev1, &head) [L909] CALL list_del(dev2) [L896] COND FALSE !(entry==elem) [L909] RET list_del(dev2) [L910] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L910] RET list_add(dev2, &head) [L913] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L890] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.3s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 555 SDtfs, 978 SDslu, 1588 SDs, 0 SdLazy, 5308 SolverSat, 392 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 113 SyntacticMatches, 6 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 52 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 30.8s InterpolantComputationTime, 715 NumberOfCodeBlocks, 715 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 186296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 138/185 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...