/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.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:26:56,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:26:56,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:26:56,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:26:56,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:26:56,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:26:56,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:26:56,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:26:56,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:26:56,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:26:56,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:26:56,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:26:56,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:26:56,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:26:56,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:26:56,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:26:56,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:26:56,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:26:56,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:26:56,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:26:56,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:26:56,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:26:56,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:26:56,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:26:56,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:26:56,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:26:56,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:26:56,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:26:56,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:26:56,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:26:56,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:26:56,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:26:56,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:26:56,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:26:56,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:26:56,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:26:56,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:26:56,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:26:56,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:26:56,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:26:56,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:26:56,944 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 13:26:56,987 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:26:56,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:26:56,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:26:56,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:26:56,990 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:26:56,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:26:56,992 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:26:56,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:26:56,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:26:56,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:26:56,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:26:56,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:26:56,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:26:56,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:26:56,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:26:56,995 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:26:56,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:26:56,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:26:56,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:26:56,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:26:56,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:26:56,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:26:57,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:26:57,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:26:57,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:26:57,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:26:57,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:26:57,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:26:57,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:26:57,002 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 13:26:57,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:26:57,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:26:57,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:26:57,465 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:26:57,465 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:26:57,466 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 13:26:57,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/359e434ca/98f8fb96950249719d1f72a4a5c4eca3/FLAGea34d2e4f [2020-09-25 13:26:58,147 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:26:58,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 13:26:58,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/359e434ca/98f8fb96950249719d1f72a4a5c4eca3/FLAGea34d2e4f [2020-09-25 13:26:58,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/359e434ca/98f8fb96950249719d1f72a4a5c4eca3 [2020-09-25 13:26:58,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:26:58,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:26:58,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:26:58,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:26:58,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:26:58,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcb8091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:58, skipping insertion in model container [2020-09-25 13:26:58,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:26:58" (1/1) ... [2020-09-25 13:26:58,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:26:58,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:26:58,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:26:58,890 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:26:59,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:26:59,095 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:26:59,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59 WrapperNode [2020-09-25 13:26:59,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:26:59,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:26:59,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:26:59,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:26:59,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (1/1) ... [2020-09-25 13:26:59,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (1/1) ... [2020-09-25 13:26:59,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (1/1) ... [2020-09-25 13:26:59,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (1/1) ... [2020-09-25 13:26:59,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (1/1) ... [2020-09-25 13:26:59,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (1/1) ... [2020-09-25 13:26:59,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (1/1) ... [2020-09-25 13:26:59,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:26:59,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:26:59,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:26:59,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:26:59,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (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 13:26:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:26:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:26:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 13:26:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 13:26:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 13:26:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 13:26:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 13:26:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:26:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:26:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 13:26:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 13:26:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 13:26:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 13:26:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 13:26:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 13:26:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 13:26:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 13:26:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 13:26:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 13:26:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 13:26:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 13:26:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 13:26:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 13:26:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 13:26:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 13:26:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 13:26:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 13:26:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 13:26:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 13:26:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 13:26:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 13:26:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 13:26:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 13:26:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 13:26:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 13:26:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 13:26:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 13:26:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 13:26:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 13:26:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 13:26:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 13:26:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 13:26:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 13:26:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 13:26:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 13:26:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 13:26:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 13:26:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 13:26:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:26:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 13:26:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 13:26:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 13:26:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 13:26:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 13:26:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 13:26:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 13:26:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 13:26:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 13:26:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 13:26:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 13:26:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 13:26:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 13:26:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 13:26:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 13:26:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 13:26:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 13:26:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 13:26:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 13:26:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 13:26:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 13:26:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 13:26:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 13:26:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 13:26:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 13:26:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 13:26:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 13:26:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 13:26:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 13:26:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 13:26:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 13:26:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 13:26:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 13:26:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 13:26:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 13:26:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 13:26:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 13:26:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 13:26:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 13:26:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 13:26:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 13:26:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 13:26:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 13:26:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 13:26:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 13:26:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 13:26:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 13:26:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 13:26:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 13:26:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 13:26:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 13:26:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 13:26:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 13:26:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 13:26:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 13:26:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 13:26:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 13:26:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 13:26:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 13:26:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 13:26:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 13:26:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 13:26:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:26:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 13:26:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 13:26:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:26:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 13:26:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 13:26:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 13:26:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 13:26:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 13:26:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 13:26:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 13:26:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 13:26:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 13:26:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 13:26:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 13:26:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 13:26:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 13:26:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 13:26:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:26:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 13:26:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 13:26:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 13:26:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 13:26:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:26:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:26:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:26:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 13:26:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:26:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:26:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:26:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:26:59,814 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:26:59,814 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 13:26:59,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:59 BoogieIcfgContainer [2020-09-25 13:26:59,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:26:59,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:26:59,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:26:59,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:26:59,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:26:58" (1/3) ... [2020-09-25 13:26:59,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cee0dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:59, skipping insertion in model container [2020-09-25 13:26:59,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:59" (2/3) ... [2020-09-25 13:26:59,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cee0dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:59, skipping insertion in model container [2020-09-25 13:26:59,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:59" (3/3) ... [2020-09-25 13:26:59,831 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-25 13:26:59,843 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:26:59,854 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:26:59,876 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:26:59,905 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:26:59,906 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:26:59,906 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:26:59,906 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:26:59,906 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:26:59,906 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:26:59,906 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:26:59,907 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:26:59,933 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-25 13:26:59,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 13:26:59,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:59,943 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 13:26:59,943 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:59,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:59,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-25 13:26:59,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:59,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501434496] [2020-09-25 13:26:59,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:00,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:00,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:00,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 13:27:00,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:00,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-09-25 13:27:00,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:00,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:00,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 13:27:00,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:27:00,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:27:00,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:00,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:00,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:00,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:00,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:00,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 13:27:00,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:00,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:00,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:00,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:00,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:00,844 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 13:27:00,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501434496] [2020-09-25 13:27:00,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:27:00,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:27:00,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597176197] [2020-09-25 13:27:00,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:27:00,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:00,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:27:00,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:27:00,878 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-25 13:27:01,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:01,321 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-25 13:27:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:27:01,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 13:27:01,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:01,338 INFO L225 Difference]: With dead ends: 126 [2020-09-25 13:27:01,338 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 13:27:01,344 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 13:27:01,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 13:27:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-25 13:27:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 13:27:01,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-25 13:27:01,425 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-25 13:27:01,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:01,426 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-25 13:27:01,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:27:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-25 13:27:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 13:27:01,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:01,431 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 13:27:01,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:27:01,431 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:01,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:01,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-25 13:27:01,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:01,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536771854] [2020-09-25 13:27:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:01,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:01,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:05,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:05,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 13:27:05,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:27:05,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4325 [2020-09-25 13:27:05,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:05,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:05,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:27:05,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:05,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:27:05,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:05,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:05,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:06,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:06,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:06,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:06,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:27:06,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:06,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:06,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:06,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:06,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:06,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:06,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:06,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:06,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:27:06,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:06,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:06,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:06,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:06,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:06,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:06,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:06,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:06,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:06,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:06,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:06,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:27:06,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:06,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:06,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:06,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:06,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:06,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:06,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:27:06,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:06,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:06,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:06,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:06,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:06,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:06,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:06,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:06,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:27:06,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:06,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:06,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:06,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:06,214 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 13:27:06,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536771854] [2020-09-25 13:27:06,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:27:06,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:27:06,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402841497] [2020-09-25 13:27:06,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:27:06,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:06,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:27:06,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:27:06,223 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 8 states. [2020-09-25 13:27:07,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:07,238 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2020-09-25 13:27:07,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:27:07,240 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 13:27:07,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:07,243 INFO L225 Difference]: With dead ends: 101 [2020-09-25 13:27:07,244 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 13:27:07,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:27:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 13:27:07,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-09-25 13:27:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 13:27:07,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-25 13:27:07,289 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 61 [2020-09-25 13:27:07,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:07,292 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-25 13:27:07,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:27:07,292 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-25 13:27:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 13:27:07,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:07,299 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 13:27:07,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:27:07,300 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:07,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:07,300 INFO L82 PathProgramCache]: Analyzing trace with hash -497938342, now seen corresponding path program 1 times [2020-09-25 13:27:07,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:07,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141850238] [2020-09-25 13:27:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:07,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:07,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:07,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:09,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:12,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:27:12,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:27:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:27:12,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:12,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:12,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:27:12,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:12,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:27:12,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:12,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:12,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:12,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:12,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:12,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 13:27:12,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:12,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:12,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:12,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:12,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:12,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:12,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:12,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 13:27:12,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:12,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:12,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:12,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:12,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:12,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:12,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:12,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:12,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:12,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:12,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:27:12,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:12,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:12,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:12,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:12,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:12,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:12,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:12,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 13:27:12,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:12,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:12,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:12,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:12,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:12,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:12,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:12,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:27:12,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:12,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:12,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:12,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:12,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:12,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:12,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:12,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:12,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:12,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:27:12,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:27:12,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:12,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:27:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 13:27:12,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:12,741 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 13:27:12,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141850238] [2020-09-25 13:27:12,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:12,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:27:12,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737199298] [2020-09-25 13:27:12,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:27:12,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:12,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:27:12,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:27:12,745 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 9 states. [2020-09-25 13:27:13,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:13,382 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2020-09-25 13:27:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:27:13,384 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 13:27:13,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:13,386 INFO L225 Difference]: With dead ends: 96 [2020-09-25 13:27:13,386 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 13:27:13,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:27:13,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 13:27:13,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2020-09-25 13:27:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 13:27:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-09-25 13:27:13,418 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 70 [2020-09-25 13:27:13,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:13,420 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-09-25 13:27:13,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:27:13,420 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-09-25 13:27:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 13:27:13,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:13,422 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 13:27:13,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:27:13,423 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:13,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:13,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1150537932, now seen corresponding path program 1 times [2020-09-25 13:27:13,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:13,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440085728] [2020-09-25 13:27:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:13,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:13,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:13,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:17,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:17,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 13:27:17,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:27:17,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3995 [2020-09-25 13:27:17,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:17,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:27:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:27:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:17,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:17,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:17,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:17,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:17,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:17,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:27:17,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:17,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:17,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:17,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:17,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:17,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:17,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:17,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:27:17,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:17,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:17,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:17,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:17,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:17,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:17,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:17,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:17,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:17,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:17,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:17,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:27:17,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:17,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:17,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:17,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:17,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:17,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:17,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:17,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:17,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 13:27:17,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:17,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:17,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:17,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:17,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:17,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:17,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:17,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:17,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:17,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:17,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:17,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:27:17,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:17,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:17,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:17,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:17,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:17,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:17,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:17,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:17,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 13:27:17,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:17,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:27:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:17,892 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 13:27:17,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440085728] [2020-09-25 13:27:17,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:27:17,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 13:27:17,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58989655] [2020-09-25 13:27:17,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:27:17,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:17,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:27:17,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:27:17,895 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 13 states. [2020-09-25 13:27:18,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:18,914 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2020-09-25 13:27:18,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 13:27:18,915 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-09-25 13:27:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:18,917 INFO L225 Difference]: With dead ends: 142 [2020-09-25 13:27:18,917 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 13:27:18,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2020-09-25 13:27:18,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 13:27:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2020-09-25 13:27:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 13:27:18,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-09-25 13:27:18,942 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 71 [2020-09-25 13:27:18,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:18,942 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-09-25 13:27:18,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:27:18,943 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-09-25 13:27:18,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 13:27:18,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:18,947 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 13:27:18,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:27:18,947 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:18,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:18,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1063153905, now seen corresponding path program 1 times [2020-09-25 13:27:18,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:18,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013149756] [2020-09-25 13:27:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:19,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:19,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:22,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:22,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 13:27:22,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:27:22,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3881 [2020-09-25 13:27:22,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:22,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:27:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:27:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:22,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:22,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:23,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:23,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:23,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:23,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 13:27:23,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:23,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:23,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:23,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:23,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:23,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:23,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:23,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:23,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:23,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 13:27:23,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:23,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:23,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:23,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:23,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:23,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:23,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:23,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:23,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:23,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:23,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:23,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 13:27:23,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:23,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:23,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:23,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:23,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:23,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:23,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:23,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 13:27:23,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:23,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:23,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:23,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:23,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:23,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:23,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:23,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:23,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:27:23,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:23,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:23,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:23,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:23,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:23,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:23,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:23,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:23,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:23,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:23,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:23,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 13:27:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:23,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:27:23,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:23,544 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 13:27:23,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013149756] [2020-09-25 13:27:23,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:23,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 13:27:23,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583068511] [2020-09-25 13:27:23,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 13:27:23,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:23,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 13:27:23,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:27:23,548 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 16 states. [2020-09-25 13:27:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:24,886 INFO L93 Difference]: Finished difference Result 149 states and 163 transitions. [2020-09-25 13:27:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 13:27:24,887 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 13:27:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:24,889 INFO L225 Difference]: With dead ends: 149 [2020-09-25 13:27:24,890 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 13:27:24,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 13:27:24,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 13:27:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 82. [2020-09-25 13:27:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 13:27:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 13:27:24,909 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 71 [2020-09-25 13:27:24,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:24,909 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 13:27:24,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 13:27:24,909 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 13:27:24,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 13:27:24,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:24,910 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 13:27:24,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:27:24,911 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:24,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:24,912 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-25 13:27:24,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:24,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241794573] [2020-09-25 13:27:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:24,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:25,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:25,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 13:27:25,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:25,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 873 [2020-09-25 13:27:25,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:25,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:25,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 13:27:25,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 13:27:25,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 13:27:25,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:25,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:25,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:25,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:25,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:25,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:25,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:27:25,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:25,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:25,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:25,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:25,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:25,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:25,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:25,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 13:27:25,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:25,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:25,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:25,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:25,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:27:25,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:26,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:26,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:26,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:26,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:26,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:26,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:27:26,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:26,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:26,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:26,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:26,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:26,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:26,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:26,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:26,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:26,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 13:27:26,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:26,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:27:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 13:27:26,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:26,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:26,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:26,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:26,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:26,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:26,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 13:27:26,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:26,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:26,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:27:26,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:26,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:27:26,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:26,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:26,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:26,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:26,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:26,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:26,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 13:27:26,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:26,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:26,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:26,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:26,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:26,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:26,478 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 13:27:26,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241794573] [2020-09-25 13:27:26,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:26,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 13:27:26,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837640222] [2020-09-25 13:27:26,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 13:27:26,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:26,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 13:27:26,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 13:27:26,481 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 23 states. [2020-09-25 13:27:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:27,997 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2020-09-25 13:27:27,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 13:27:27,998 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 13:27:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:28,000 INFO L225 Difference]: With dead ends: 97 [2020-09-25 13:27:28,001 INFO L226 Difference]: Without dead ends: 89 [2020-09-25 13:27:28,002 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 13:27:28,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-09-25 13:27:28,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2020-09-25 13:27:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 13:27:28,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-09-25 13:27:28,016 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 71 [2020-09-25 13:27:28,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:28,016 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-09-25 13:27:28,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 13:27:28,017 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-09-25 13:27:28,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 13:27:28,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:28,018 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 13:27:28,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:27:28,018 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:28,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:28,019 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-25 13:27:28,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:28,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425851446] [2020-09-25 13:27:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:28,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:28,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:30,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:30,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 13:27:30,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:27:30,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2516 [2020-09-25 13:27:30,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:30,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:30,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 13:27:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 13:27:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 13:27:30,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:30,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:30,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:30,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:30,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:30,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:30,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:27:30,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:30,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:30,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:30,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:30,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:30,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:30,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:30,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:30,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 13:27:30,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:30,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:30,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:30,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:30,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:27:30,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:30,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:30,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:30,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:30,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:30,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 13:27:30,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:30,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:30,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:30,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:30,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:30,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:30,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:30,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:30,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 13:27:30,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:30,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:27:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 13:27:30,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:31,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:31,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:31,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:31,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:31,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:31,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 13:27:31,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:31,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:27:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:27:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:31,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:31,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:31,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:31,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:27:31,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:31,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:27:31,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:31,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:27:31,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:31,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 13:27:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:31,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:31,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:31,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:31,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:27:31,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:31,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:27:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:31,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:31,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:31,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 13:27:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:31,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:31,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:31,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:27:31,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:31,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:27:31,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:31,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:27:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:27:31,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:31,343 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 13:27:31,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425851446] [2020-09-25 13:27:31,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:31,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 13:27:31,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309228516] [2020-09-25 13:27:31,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 13:27:31,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:31,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 13:27:31,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:27:31,346 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 24 states. [2020-09-25 13:27:32,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:32,794 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2020-09-25 13:27:32,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 13:27:32,796 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 13:27:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:32,797 INFO L225 Difference]: With dead ends: 89 [2020-09-25 13:27:32,797 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 13:27:32,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 15 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 13:27:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 13:27:32,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-25 13:27:32,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 13:27:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 13:27:32,809 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 85 [2020-09-25 13:27:32,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:32,809 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 13:27:32,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 13:27:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 13:27:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 13:27:32,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:32,811 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 13:27:32,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:27:32,812 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:32,812 INFO L82 PathProgramCache]: Analyzing trace with hash 571953633, now seen corresponding path program 2 times [2020-09-25 13:27:32,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:32,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063228611] [2020-09-25 13:27:32,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:32,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:33,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 13:27:34,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:27:34,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1458 [2020-09-25 13:27:34,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:27:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 13:27:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:27:34,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:34,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:34,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:34,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:34,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:27:34,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:34,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:34,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:34,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:34,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:27:34,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:34,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:34,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:34,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:34,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:34,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:34,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:34,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:27:34,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:34,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:34,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:34,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:34,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:34,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:34,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:34,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:27:34,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:34,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:34,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:34,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:27:34,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:34,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:34,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:34,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:34,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:34,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:34,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:34,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:27:34,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:27:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:34,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:34,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 13:27:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:34,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:27:34,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:34,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:27:34,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:27:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:34,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 13:27:34,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:34,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 13:27:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:34,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:34,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:34,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:27:34,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:27:34,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:34,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:27:34,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:34,641 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 13:27:34,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063228611] [2020-09-25 13:27:34,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:34,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:27:34,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652108231] [2020-09-25 13:27:34,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:27:34,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:34,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:27:34,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:27:34,643 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 10 states. [2020-09-25 13:27:35,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:35,241 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2020-09-25 13:27:35,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:27:35,242 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 13:27:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:35,244 INFO L225 Difference]: With dead ends: 89 [2020-09-25 13:27:35,244 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 13:27:35,244 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 13:27:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 13:27:35,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-09-25 13:27:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 13:27:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-09-25 13:27:35,254 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 85 [2020-09-25 13:27:35,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:35,254 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-09-25 13:27:35,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:27:35,254 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-09-25 13:27:35,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 13:27:35,256 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:35,256 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 13:27:35,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:27:35,257 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:35,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:35,257 INFO L82 PathProgramCache]: Analyzing trace with hash 578402155, now seen corresponding path program 1 times [2020-09-25 13:27:35,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:35,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922267816] [2020-09-25 13:27:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:35,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:35,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:35,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:38,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:39,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:27:40,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:27:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 13:27:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:27:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:27:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 13:27:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:40,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:27:40,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:40,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:27:40,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:40,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:40,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:27:40,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:27:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:40,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:27:40,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:40,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:40,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:40,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:27:40,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:40,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 13:27:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:40,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:27:40,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:40,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:27:40,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:27:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:27:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:40,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:40,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:40,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:27:40,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:40,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:40,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:40,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:40,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:27:40,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:40,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 13:27:40,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:27:40,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:40,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 13:27:40,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 13:27:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:40,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:27:40,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:27:40,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:27:40,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 13:27:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:40,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:40,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:40,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:27:40,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:27:40,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:40,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:27:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:27:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:40,708 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 13:27:40,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922267816] [2020-09-25 13:27:40,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:40,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 13:27:40,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667756607] [2020-09-25 13:27:40,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:27:40,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:40,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:27:40,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:27:40,711 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 12 states. [2020-09-25 13:27:41,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:41,662 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2020-09-25 13:27:41,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 13:27:41,662 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-09-25 13:27:41,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:41,663 INFO L225 Difference]: With dead ends: 81 [2020-09-25 13:27:41,663 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:27:41,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 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 13:27:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:27:41,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:27:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:27:41,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:27:41,666 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2020-09-25 13:27:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:41,666 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:27:41,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:27:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:27:41,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:27:41,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 13:27:41,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:27:42,247 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 21 [2020-09-25 13:27:42,936 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-09-25 13:27:42,937 INFO L264 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: (or (not (= ~elem~0.base ~elem~0.offset)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= my_malloc_~size 8)) (not (= |my_malloc_#in~size| 8)) (not (= ~elem~0.offset 0))) [2020-09-25 13:27:42,937 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-09-25 13:27:42,937 INFO L268 CegarLoopResult]: For program point L879-2(line 879) no Hoare annotation was computed. [2020-09-25 13:27:42,937 INFO L264 CegarLoopResult]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.base ~elem~0.offset)) (not (= |my_malloc_#in~size| 8)) (not (= ~elem~0.offset 0))) [2020-09-25 13:27:42,937 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-09-25 13:27:42,937 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 13:27:42,938 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 13:27:42,938 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 900) no Hoare annotation was computed. [2020-09-25 13:27:42,938 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= |~#head~0.base| |old(~#head~0.base)|) (= |old(#length)| |#length|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~elem~0.base |old(~elem~0.base)|) (= |old(#valid)| |#valid|)) [2020-09-25 13:27:42,938 INFO L268 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-09-25 13:27:42,938 INFO L268 CegarLoopResult]: For program point L900(line 900) no Hoare annotation was computed. [2020-09-25 13:27:42,938 INFO L268 CegarLoopResult]: For program point L867(line 867) no Hoare annotation was computed. [2020-09-25 13:27:42,938 INFO L268 CegarLoopResult]: For program point L900-1(line 900) no Hoare annotation was computed. [2020-09-25 13:27:42,938 INFO L268 CegarLoopResult]: For program point L900-2(line 900) no Hoare annotation was computed. [2020-09-25 13:27:42,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:27:42,939 INFO L268 CegarLoopResult]: For program point L897(line 897) no Hoare annotation was computed. [2020-09-25 13:27:42,939 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-09-25 13:27:42,939 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-09-25 13:27:42,939 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-09-25 13:27:42,939 INFO L264 CegarLoopResult]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) [2020-09-25 13:27:42,939 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (let ((.cse0 (= |old(~elem~0.base)| ~elem~0.base))) (and (or (and .cse0 (= |old(~elem~0.offset)| ~elem~0.offset)) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) (or (= |old(~elem~0.base)| |list_add_#in~new.base|) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.offset 0) .cse0)))) [2020-09-25 13:27:42,940 INFO L268 CegarLoopResult]: For program point L892(line 892) no Hoare annotation was computed. [2020-09-25 13:27:42,940 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-09-25 13:27:42,940 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-09-25 13:27:42,940 INFO L268 CegarLoopResult]: For program point L891-1(line 891) no Hoare annotation was computed. [2020-09-25 13:27:42,940 INFO L268 CegarLoopResult]: For program point L889(lines 889 893) no Hoare annotation was computed. [2020-09-25 13:27:42,940 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (and (or (not (= |old(~elem~0.base)| 0)) (= |old(~elem~0.base)| |list_add_#in~new.base|) (not (= |old(~elem~0.offset)| 0))) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) [2020-09-25 13:27:42,940 INFO L268 CegarLoopResult]: For program point L891-3(line 891) no Hoare annotation was computed. [2020-09-25 13:27:42,940 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-09-25 13:27:42,941 INFO L268 CegarLoopResult]: For program point L891-4(lines 889 893) no Hoare annotation was computed. [2020-09-25 13:27:42,941 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-09-25 13:27:42,941 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-25 13:27:42,941 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 13:27:42,941 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 13:27:42,941 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-09-25 13:27:42,941 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:27:42,941 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~elem~0.base 0)) [2020-09-25 13:27:42,942 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 13:27:42,942 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:27:42,942 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 13:27:42,942 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-09-25 13:27:42,942 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (not (= main_~dev2~0.offset ~elem~0.offset))) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.base ~elem~0.offset))) [2020-09-25 13:27:42,942 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-09-25 13:27:42,943 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (or (and (let ((.cse0 (not (= main_~dev2~0.offset main_~dev1~0.offset)))) (or (and .cse0 (= main_~dev2~0.base ~elem~0.base)) (and .cse0 (not (= main_~dev2~0.offset ~elem~0.offset))))) (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0)))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.base ~elem~0.offset))) [2020-09-25 13:27:42,943 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.offset 0) (or (not (= ~elem~0.base main_~dev1~0.base)) (not (= main_~dev1~0.offset ~elem~0.offset))) (= |old(~elem~0.base)| ~elem~0.base))) [2020-09-25 13:27:42,943 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-09-25 13:27:42,943 INFO L264 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse0 (not (= main_~dev1~0.offset ~elem~0.offset)))) (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and .cse0 (= main_~dev2~0.base ~elem~0.base) (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0))) (= main_~dev2~0.offset ~elem~0.offset)) (not (= |old(~elem~0.offset)| 0)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.offset 0) (or (not (= ~elem~0.base main_~dev1~0.base)) .cse0) (= |old(~elem~0.base)| ~elem~0.base)))) [2020-09-25 13:27:42,943 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (let ((.cse0 (= |old(~elem~0.base)| ~elem~0.base)) (.cse1 (= |old(~elem~0.offset)| ~elem~0.offset))) (or (and (= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (not (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) .cse0 .cse1) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.base main_~dev1~0.base) (= main_~dev1~0.offset ~elem~0.offset) .cse0 .cse1))) [2020-09-25 13:27:42,943 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-09-25 13:27:42,944 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 13:27:42,944 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-09-25 13:27:42,944 INFO L268 CegarLoopResult]: For program point L903(line 903) no Hoare annotation was computed. [2020-09-25 13:27:42,944 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-09-25 13:27:42,944 INFO L268 CegarLoopResult]: For program point L905-2(line 905) no Hoare annotation was computed. [2020-09-25 13:27:42,944 INFO L268 CegarLoopResult]: For program point L904-2(line 904) no Hoare annotation was computed. [2020-09-25 13:27:42,944 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.base ~elem~0.offset)) (not (= ~elem~0.offset 0))) [2020-09-25 13:27:42,944 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point L875(line 875) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point L874(line 874) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point L873(line 873) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point L872(line 872) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point L873-1(lines 873 874) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point L872-1(line 872) no Hoare annotation was computed. [2020-09-25 13:27:42,945 INFO L268 CegarLoopResult]: For program point L873-2(line 873) no Hoare annotation was computed. [2020-09-25 13:27:42,946 INFO L268 CegarLoopResult]: For program point L873-3(line 873) no Hoare annotation was computed. [2020-09-25 13:27:42,946 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (not (= ~elem~0.base ~elem~0.offset)) (not (= ~elem~0.offset 0))) [2020-09-25 13:27:42,946 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-09-25 13:27:42,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:27:42 BoogieIcfgContainer [2020-09-25 13:27:42,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:27:42,955 INFO L168 Benchmark]: Toolchain (without parser) took 44528.56 ms. Allocated memory was 140.0 MB in the beginning and 509.1 MB in the end (delta: 369.1 MB). Free memory was 101.2 MB in the beginning and 319.4 MB in the end (delta: -218.2 MB). Peak memory consumption was 364.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:42,956 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:27:42,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.05 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 170.3 MB in the end (delta: -69.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:42,958 INFO L168 Benchmark]: Boogie Preprocessor took 66.36 ms. Allocated memory is still 204.5 MB. Free memory was 170.3 MB in the beginning and 167.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:42,959 INFO L168 Benchmark]: RCFGBuilder took 657.14 ms. Allocated memory is still 204.5 MB. Free memory was 167.0 MB in the beginning and 120.5 MB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:42,959 INFO L168 Benchmark]: TraceAbstraction took 43131.34 ms. Allocated memory was 204.5 MB in the beginning and 509.1 MB in the end (delta: 304.6 MB). Free memory was 119.8 MB in the beginning and 319.4 MB in the end (delta: -199.5 MB). Peak memory consumption was 318.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:27:42,963 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.05 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 170.3 MB in the end (delta: -69.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.36 ms. Allocated memory is still 204.5 MB. Free memory was 170.3 MB in the beginning and 167.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 657.14 ms. Allocated memory is still 204.5 MB. Free memory was 167.0 MB in the beginning and 120.5 MB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43131.34 ms. Allocated memory was 204.5 MB in the beginning and 509.1 MB in the end (delta: 304.6 MB). Free memory was 119.8 MB in the beginning and 319.4 MB in the end (delta: -199.5 MB). Peak memory consumption was 318.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 41.7s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 527 SDtfs, 1014 SDslu, 1514 SDs, 0 SdLazy, 4498 SolverSat, 346 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 110 SyntacticMatches, 6 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 43 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 77 PreInvPairs, 87 NumberOfFragments, 471 HoareAnnotationTreeSize, 77 FomulaSimplifications, 267 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 18 FomulaSimplificationsInter, 942 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 31.8s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 9 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 correct! Received shutdown request...