/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=NARROWEST --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 02:06:31,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:06:31,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:06:31,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:06:31,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:06:31,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:06:31,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:06:31,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:06:31,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:06:31,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:06:31,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:06:31,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:06:31,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:06:31,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:06:31,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:06:31,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:06:31,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:06:31,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:06:31,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:06:31,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:06:31,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:06:31,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:06:31,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:06:31,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:06:31,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:06:31,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:06:31,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:06:31,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:06:31,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:06:31,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:06:31,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:06:31,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:06:31,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:06:31,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:06:31,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:06:31,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:06:31,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:06:31,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:06:31,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:06:31,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:06:31,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:06:31,524 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 02:06:31,574 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:06:31,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:06:31,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:06:31,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:06:31,578 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:06:31,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:06:31,578 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:06:31,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:06:31,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:06:31,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:06:31,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:06:31,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:06:31,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:06:31,581 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:06:31,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:06:31,582 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:06:31,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:06:31,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:06:31,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:06:31,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:06:31,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:06:31,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:06:31,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:06:31,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:06:31,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:06:31,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:06:31,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:06:31,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:06:31,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:06:31,585 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:06:32,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:06:32,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:06:32,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:06:32,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:06:32,074 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:06:32,075 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 02:06:32,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c19acf93b/ddc3a98f7fe14c68b5e646538a8e1a20/FLAG9b944208d [2020-09-25 02:06:32,802 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:06:32,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 02:06:32,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c19acf93b/ddc3a98f7fe14c68b5e646538a8e1a20/FLAG9b944208d [2020-09-25 02:06:33,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c19acf93b/ddc3a98f7fe14c68b5e646538a8e1a20 [2020-09-25 02:06:33,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:06:33,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:06:33,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:06:33,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:06:33,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:06:33,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b93891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33, skipping insertion in model container [2020-09-25 02:06:33,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:06:33,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:06:33,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:06:33,620 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:06:33,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:06:33,762 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:06:33,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33 WrapperNode [2020-09-25 02:06:33,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:06:33,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:06:33,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:06:33,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:06:33,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (1/1) ... [2020-09-25 02:06:33,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:06:33,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:06:33,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:06:33,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:06:33,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (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 02:06:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:06:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:06:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 02:06:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 02:06:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 02:06:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 02:06:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 02:06:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:06:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:06:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 02:06:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 02:06:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 02:06:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 02:06:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 02:06:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 02:06:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 02:06:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 02:06:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 02:06:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 02:06:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 02:06:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 02:06:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 02:06:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 02:06:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 02:06:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 02:06:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 02:06:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 02:06:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 02:06:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 02:06:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 02:06:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 02:06:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 02:06:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 02:06:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 02:06:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 02:06:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 02:06:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 02:06:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 02:06:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 02:06:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 02:06:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 02:06:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 02:06:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 02:06:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 02:06:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 02:06:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 02:06:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 02:06:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 02:06:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:06:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 02:06:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 02:06:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 02:06:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 02:06:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 02:06:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 02:06:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 02:06:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 02:06:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 02:06:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 02:06:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 02:06:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 02:06:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 02:06:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 02:06:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 02:06:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 02:06:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 02:06:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 02:06:33,955 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 02:06:33,955 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 02:06:33,955 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 02:06:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 02:06:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 02:06:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 02:06:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 02:06:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 02:06:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 02:06:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 02:06:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 02:06:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 02:06:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 02:06:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 02:06:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 02:06:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 02:06:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 02:06:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 02:06:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 02:06:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 02:06:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 02:06:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 02:06:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 02:06:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 02:06:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 02:06:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 02:06:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 02:06:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 02:06:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 02:06:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 02:06:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 02:06:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 02:06:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 02:06:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 02:06:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 02:06:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 02:06:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 02:06:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 02:06:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 02:06:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 02:06:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 02:06:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 02:06:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 02:06:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 02:06:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:06:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 02:06:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 02:06:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:06:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 02:06:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 02:06:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 02:06:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 02:06:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 02:06:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 02:06:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 02:06:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 02:06:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 02:06:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 02:06:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 02:06:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 02:06:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 02:06:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 02:06:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:06:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 02:06:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 02:06:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 02:06:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 02:06:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:06:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:06:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:06:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 02:06:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:06:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:06:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:06:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:06:34,553 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:06:34,558 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:06:34,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:06:34 BoogieIcfgContainer [2020-09-25 02:06:34,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:06:34,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:06:34,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:06:34,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:06:34,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:06:33" (1/3) ... [2020-09-25 02:06:34,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df01b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:06:34, skipping insertion in model container [2020-09-25 02:06:34,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:33" (2/3) ... [2020-09-25 02:06:34,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df01b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:06:34, skipping insertion in model container [2020-09-25 02:06:34,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:06:34" (3/3) ... [2020-09-25 02:06:34,579 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-25 02:06:34,601 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:06:34,611 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:06:34,631 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:06:34,657 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:06:34,657 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:06:34,658 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:06:34,658 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:06:34,658 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:06:34,658 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:06:34,658 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:06:34,658 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:06:34,680 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-25 02:06:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 02:06:34,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:34,688 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 02:06:34,688 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:34,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:34,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-25 02:06:34,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:34,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074776093] [2020-09-25 02:06:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:34,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:35,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:35,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 02:06:35,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-09-25 02:06:35,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:35,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:06:35,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 02:06:35,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:06:35,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:06:35,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:35,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:35,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:35,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:06:35,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:35,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 02:06:35,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:35,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:35,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:35,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:35,519 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 02:06:35,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074776093] [2020-09-25 02:06:35,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:06:35,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 02:06:35,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069889351] [2020-09-25 02:06:35,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:06:35,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:35,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:06:35,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:06:35,549 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-25 02:06:36,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:36,023 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-25 02:06:36,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 02:06:36,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 02:06:36,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:36,042 INFO L225 Difference]: With dead ends: 126 [2020-09-25 02:06:36,042 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 02:06:36,047 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 02:06:36,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 02:06:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-25 02:06:36,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 02:06:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-25 02:06:36,113 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-25 02:06:36,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:36,113 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-25 02:06:36,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:06:36,113 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-25 02:06:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 02:06:36,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:36,117 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 02:06:36,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:06:36,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:36,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:36,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-25 02:06:36,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:36,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164013221] [2020-09-25 02:06:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:36,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:36,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:36,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:40,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:40,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 02:06:40,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:06:40,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4387 [2020-09-25 02:06:40,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:06:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 02:06:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:06:40,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:06:40,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:40,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:40,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:40,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:06:40,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:40,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:06:40,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:40,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:40,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:40,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:40,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:40,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 02:06:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:40,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:40,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:40,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:40,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:40,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:06:40,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:40,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:40,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:40,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:40,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:40,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:40,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:40,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:40,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:06:40,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:40,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:40,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:40,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:40,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:40,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 02:06:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:40,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:40,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:40,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:40,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 02:06:40,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:06:40,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:40,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 02:06:40,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:40,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:40,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:41,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:41,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:41,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:41,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 02:06:41,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:06:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:41,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:06:41,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:41,051 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 02:06:41,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164013221] [2020-09-25 02:06:41,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:06:41,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:06:41,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066696568] [2020-09-25 02:06:41,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:06:41,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:41,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:06:41,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:06:41,056 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 9 states. [2020-09-25 02:06:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:41,386 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2020-09-25 02:06:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:06:41,387 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-25 02:06:41,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:41,389 INFO L225 Difference]: With dead ends: 97 [2020-09-25 02:06:41,390 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 02:06:41,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:06:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 02:06:41,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-09-25 02:06:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 02:06:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2020-09-25 02:06:41,406 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 61 [2020-09-25 02:06:41,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:41,406 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2020-09-25 02:06:41,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:06:41,406 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2020-09-25 02:06:41,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 02:06:41,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:41,409 INFO L422 BasicCegarLoop]: trace histogram [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 02:06:41,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:06:41,409 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:41,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:41,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1617160578, now seen corresponding path program 1 times [2020-09-25 02:06:41,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:41,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363328105] [2020-09-25 02:06:41,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:41,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:41,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:42,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:44,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:44,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 02:06:44,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:06:44,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2584 [2020-09-25 02:06:44,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:06:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 02:06:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 02:06:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:44,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:44,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:44,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:44,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:06:44,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:44,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:06:44,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:44,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:44,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 02:06:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:44,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:44,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:44,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:44,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:44,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 02:06:44,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:06:44,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:44,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 02:06:44,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:44,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:44,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:44,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:44,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:44,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 02:06:44,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:06:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:06:44,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:44,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 02:06:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:44,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:44,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:44,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:44,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:44,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:06:44,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:06:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:44,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:44,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:44,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:44,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:06:44,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:44,417 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 02:06:44,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363328105] [2020-09-25 02:06:44,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:06:44,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 02:06:44,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471322052] [2020-09-25 02:06:44,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:06:44,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:44,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:06:44,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:06:44,421 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 9 states. [2020-09-25 02:06:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:44,678 INFO L93 Difference]: Finished difference Result 100 states and 110 transitions. [2020-09-25 02:06:44,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:06:44,680 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-25 02:06:44,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:44,684 INFO L225 Difference]: With dead ends: 100 [2020-09-25 02:06:44,684 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 02:06:44,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:06:44,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 02:06:44,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2020-09-25 02:06:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-25 02:06:44,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-09-25 02:06:44,704 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 61 [2020-09-25 02:06:44,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:44,706 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-09-25 02:06:44,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:06:44,706 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-09-25 02:06:44,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 02:06:44,710 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:44,710 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 02:06:44,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:06:44,710 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:44,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:44,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1531514875, now seen corresponding path program 1 times [2020-09-25 02:06:44,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:44,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258816336] [2020-09-25 02:06:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:44,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:45,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:45,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 02:06:45,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:06:45,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1227 [2020-09-25 02:06:45,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:45,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:06:45,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 02:06:45,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 02:06:45,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:46,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:46,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:46,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:06:46,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:46,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 02:06:46,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:06:46,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:46,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 02:06:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:46,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:46,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:46,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:46,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:46,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 02:06:46,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:06:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:46,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:46,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:46,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:46,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:06:46,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:46,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:46,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 02:06:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:46,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:46,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:46,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:46,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:46,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 02:06:46,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:46,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:06:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:46,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:46,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:46,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:46,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:46,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:06:46,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:46,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:46,338 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 02:06:46,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258816336] [2020-09-25 02:06:46,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:06:46,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:06:46,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869826725] [2020-09-25 02:06:46,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:06:46,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:46,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:06:46,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:06:46,341 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 8 states. [2020-09-25 02:06:46,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:46,979 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2020-09-25 02:06:46,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:06:46,980 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 02:06:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:46,983 INFO L225 Difference]: With dead ends: 99 [2020-09-25 02:06:46,983 INFO L226 Difference]: Without dead ends: 86 [2020-09-25 02:06:46,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:06:46,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-25 02:06:47,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2020-09-25 02:06:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 02:06:47,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2020-09-25 02:06:47,001 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 61 [2020-09-25 02:06:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:47,002 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2020-09-25 02:06:47,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:06:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2020-09-25 02:06:47,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 02:06:47,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:47,003 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 02:06:47,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:06:47,004 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:47,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2098824736, now seen corresponding path program 1 times [2020-09-25 02:06:47,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:47,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613362595] [2020-09-25 02:06:47,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:47,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:47,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:48,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:48,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 02:06:48,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:06:48,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1280 [2020-09-25 02:06:48,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:48,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:06:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 02:06:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:06:48,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:48,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:48,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:48,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:48,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:06:48,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:48,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 02:06:48,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:06:48,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:48,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 02:06:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:48,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:48,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:48,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:48,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:48,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 02:06:48,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:48,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:48,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:48,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:06:48,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:48,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:48,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:48,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:48,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:48,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:06:48,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:48,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:48,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 02:06:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:48,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:48,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:48,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:48,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:48,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 02:06:48,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:48,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:48,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:06:48,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:48,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:48,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:48,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:48,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:48,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:48,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:06:48,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:48,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:48,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:48,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 02:06:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:48,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:48,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:48,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:06:48,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:48,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 02:06:48,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:48,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:06:48,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:06:48,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:06:48,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:48,753 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 02:06:48,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613362595] [2020-09-25 02:06:48,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:06:48,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 02:06:48,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047698369] [2020-09-25 02:06:48,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:06:48,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:48,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:06:48,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:06:48,755 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand 9 states. [2020-09-25 02:06:49,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:49,358 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2020-09-25 02:06:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 02:06:49,359 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 02:06:49,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:49,360 INFO L225 Difference]: With dead ends: 94 [2020-09-25 02:06:49,360 INFO L226 Difference]: Without dead ends: 89 [2020-09-25 02:06:49,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 02:06:49,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-09-25 02:06:49,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 82. [2020-09-25 02:06:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 02:06:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 02:06:49,373 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 70 [2020-09-25 02:06:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:49,374 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 02:06:49,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:06:49,374 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 02:06:49,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 02:06:49,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:49,375 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 02:06:49,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:06:49,376 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:49,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:49,376 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-25 02:06:49,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:49,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156974908] [2020-09-25 02:06:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:49,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:06:50,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 894 [2020-09-25 02:06:50,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 02:06:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 02:06:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 02:06:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:50,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:06:50,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:06:50,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:50,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:50,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:50,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 02:06:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:50,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 02:06:50,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:06:50,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:50,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 02:06:50,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:50,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:50,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 02:06:50,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:06:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:06:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:50,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 02:06:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:50,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 02:06:50,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:06:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:06:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:06:50,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:50,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:50,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 02:06:50,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:06:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:06:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 02:06:50,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 02:06:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:06:50,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 02:06:50,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:06:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:06:50,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:50,968 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 02:06:50,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156974908] [2020-09-25 02:06:50,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:06:50,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 02:06:50,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636005885] [2020-09-25 02:06:50,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 02:06:50,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:50,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 02:06:50,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 02:06:50,971 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 23 states. [2020-09-25 02:06:52,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:52,406 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2020-09-25 02:06:52,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 02:06:52,407 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 02:06:52,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:52,409 INFO L225 Difference]: With dead ends: 97 [2020-09-25 02:06:52,409 INFO L226 Difference]: Without dead ends: 89 [2020-09-25 02:06:52,411 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 02:06:52,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-09-25 02:06:52,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2020-09-25 02:06:52,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 02:06:52,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-09-25 02:06:52,421 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 71 [2020-09-25 02:06:52,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:52,421 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-09-25 02:06:52,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 02:06:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-09-25 02:06:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 02:06:52,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:52,423 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 02:06:52,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 02:06:52,424 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:52,424 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-25 02:06:52,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:52,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497357943] [2020-09-25 02:06:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:53,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 02:06:55,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:06:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2772 [2020-09-25 02:06:55,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:06:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 02:06:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:06:55,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:55,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:55,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:06:55,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:55,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:06:55,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:55,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:55,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:55,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:55,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 02:06:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:55,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:55,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:55,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:06:55,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:55,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:55,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:55,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:55,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:55,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:55,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:55,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:06:55,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:55,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 02:06:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:55,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:06:55,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:55,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:06:55,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:55,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:55,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:55,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:06:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:55,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:06:55,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:55,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:06:55,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:55,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:55,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:55,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:55,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 02:06:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:55,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:06:55,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:55,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:06:55,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:55,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:55,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 02:06:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:55,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:06:55,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:55,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:06:55,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:55,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 02:06:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:55,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:55,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:55,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:06:55,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:55,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:06:55,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:06:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:06:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 02:06:55,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497357943] [2020-09-25 02:06:55,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:06:55,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 02:06:55,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748395202] [2020-09-25 02:06:55,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:06:55,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:55,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:06:55,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:06:55,517 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 10 states. [2020-09-25 02:06:55,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:55,976 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2020-09-25 02:06:55,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:06:55,977 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 02:06:55,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:55,979 INFO L225 Difference]: With dead ends: 88 [2020-09-25 02:06:55,979 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 02:06:55,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:06:55,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 02:06:55,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-09-25 02:06:55,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 02:06:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-09-25 02:06:56,001 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 85 [2020-09-25 02:06:56,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:56,002 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-09-25 02:06:56,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:06:56,002 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-09-25 02:06:56,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 02:06:56,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:56,004 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 02:06:56,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 02:06:56,004 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:56,005 INFO L82 PathProgramCache]: Analyzing trace with hash 578402155, now seen corresponding path program 1 times [2020-09-25 02:06:56,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:56,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709633385] [2020-09-25 02:06:56,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:56,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:56,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:56,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:59,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:00,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 02:07:01,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:07:01,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 02:07:01,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:07:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 02:07:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 02:07:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:07:01,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:07:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:07:01,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:07:01,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:07:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:07:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:07:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:07:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:07:01,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:07:01,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 02:07:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:07:01,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:07:01,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:07:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:07:01,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:07:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:07:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:07:01,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:07:01,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:07:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:07:01,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:07:01,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:07:01,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:07:01,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:07:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:07:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:07:01,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:07:01,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 02:07:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:07:01,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:07:01,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:07:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:07:01,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:07:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:07:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:07:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:07:01,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:07:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:07:01,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:07:01,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:07:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:07:01,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:07:01,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:07:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:07:01,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:07:01,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 02:07:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:07:01,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:07:01,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:07:01,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:07:01,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:07:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:07:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:07:01,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:07:01,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 02:07:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:07:01,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:07:01,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:07:01,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:07:01,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:07:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:07:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 02:07:01,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:07:01,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 02:07:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:07:01,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:07:01,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:07:01,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:07:01,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:07:01,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:07:01,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:07:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:07:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:07:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:07:01,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:07:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 02:07:01,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709633385] [2020-09-25 02:07:01,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:07:01,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 02:07:01,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418475772] [2020-09-25 02:07:01,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:07:01,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:07:01,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:07:01,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:07:01,555 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 10 states. [2020-09-25 02:07:02,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:07:02,297 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2020-09-25 02:07:02,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:07:02,298 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-25 02:07:02,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:07:02,299 INFO L225 Difference]: With dead ends: 83 [2020-09-25 02:07:02,299 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:07:02,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:07:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:07:02,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:07:02,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:07:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:07:02,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2020-09-25 02:07:02,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:07:02,304 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:07:02,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:07:02,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:07:02,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:07:02,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 02:07:02,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:07:02,821 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 13 [2020-09-25 02:07:03,502 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-09-25 02:07:03,503 INFO L264 CegarLoopResult]: At program point L879(line 879) 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)|) (= my_malloc_~size 8)) (not (= |my_malloc_#in~size| 8))) [2020-09-25 02:07:03,503 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-09-25 02:07:03,503 INFO L268 CegarLoopResult]: For program point L879-2(line 879) no Hoare annotation was computed. [2020-09-25 02:07:03,504 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 (= |my_malloc_#in~size| 8))) [2020-09-25 02:07:03,504 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-09-25 02:07:03,504 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 02:07:03,504 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 02:07:03,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 900) no Hoare annotation was computed. [2020-09-25 02:07:03,506 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 02:07:03,506 INFO L268 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-09-25 02:07:03,506 INFO L268 CegarLoopResult]: For program point L900(line 900) no Hoare annotation was computed. [2020-09-25 02:07:03,506 INFO L268 CegarLoopResult]: For program point L867(line 867) no Hoare annotation was computed. [2020-09-25 02:07:03,506 INFO L268 CegarLoopResult]: For program point L900-1(line 900) no Hoare annotation was computed. [2020-09-25 02:07:03,506 INFO L268 CegarLoopResult]: For program point L900-2(line 900) no Hoare annotation was computed. [2020-09-25 02:07:03,507 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:07:03,507 INFO L268 CegarLoopResult]: For program point L897(line 897) no Hoare annotation was computed. [2020-09-25 02:07:03,507 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-09-25 02:07:03,507 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-09-25 02:07:03,507 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-09-25 02:07:03,507 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 02:07:03,508 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (or (and (= |old(~elem~0.base)| |list_add_#in~new.base|) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset))) [2020-09-25 02:07:03,508 INFO L268 CegarLoopResult]: For program point L892(line 892) no Hoare annotation was computed. [2020-09-25 02:07:03,508 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-09-25 02:07:03,508 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-09-25 02:07:03,508 INFO L268 CegarLoopResult]: For program point L891-1(line 891) no Hoare annotation was computed. [2020-09-25 02:07:03,508 INFO L268 CegarLoopResult]: For program point L889(lines 889 893) no Hoare annotation was computed. [2020-09-25 02:07:03,509 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (and (= |old(~elem~0.base)| |list_add_#in~new.base|) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) [2020-09-25 02:07:03,509 INFO L268 CegarLoopResult]: For program point L891-3(line 891) no Hoare annotation was computed. [2020-09-25 02:07:03,509 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-09-25 02:07:03,509 INFO L268 CegarLoopResult]: For program point L891-4(lines 889 893) no Hoare annotation was computed. [2020-09-25 02:07:03,509 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-09-25 02:07:03,509 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-25 02:07:03,510 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 02:07:03,510 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 02:07:03,510 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-09-25 02:07:03,510 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:07:03,510 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~elem~0.base ~elem~0.offset) (= ~elem~0.base 0) (< ~elem~0.offset (+ ~elem~0.base 1))) [2020-09-25 02:07:03,510 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:07:03,510 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:07:03,510 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 02:07:03,511 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-09-25 02:07:03,512 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (or (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (not (= main_~dev2~0.base ~elem~0.base)) (not (= main_~dev2~0.offset ~elem~0.offset)))) (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 02:07:03,512 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-09-25 02:07:03,512 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (let ((.cse0 (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)))) (or (and .cse0 (not (= main_~dev2~0.offset main_~dev1~0.offset))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) .cse0 (= ~elem~0.base ~elem~0.offset)))) [2020-09-25 02:07:03,512 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (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)) (or (not (= main_~dev1~0.offset 0)) (not (= main_~dev1~0.base 0))) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 02:07:03,512 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-09-25 02:07:03,513 INFO L264 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse1 (not (= main_~dev2~0.offset main_~dev1~0.offset))) (.cse0 (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)))) (or (and .cse0 .cse1 (not (= main_~dev1~0.offset ~elem~0.offset))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and .cse1 .cse0 (= ~elem~0.offset 0) (not (= main_~dev1~0.base 0)) (= |old(~elem~0.base)| ~elem~0.base)))) [2020-09-25 02:07:03,513 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (or (and (= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (not (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 02:07:03,513 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-09-25 02:07:03,513 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 02:07:03,513 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-09-25 02:07:03,514 INFO L268 CegarLoopResult]: For program point L903(line 903) no Hoare annotation was computed. [2020-09-25 02:07:03,514 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-09-25 02:07:03,514 INFO L268 CegarLoopResult]: For program point L905-2(line 905) no Hoare annotation was computed. [2020-09-25 02:07:03,514 INFO L268 CegarLoopResult]: For program point L904-2(line 904) no Hoare annotation was computed. [2020-09-25 02:07:03,514 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 02:07:03,514 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-09-25 02:07:03,514 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-09-25 02:07:03,515 INFO L268 CegarLoopResult]: For program point L875(line 875) no Hoare annotation was computed. [2020-09-25 02:07:03,515 INFO L268 CegarLoopResult]: For program point L874(line 874) no Hoare annotation was computed. [2020-09-25 02:07:03,515 INFO L268 CegarLoopResult]: For program point L873(line 873) no Hoare annotation was computed. [2020-09-25 02:07:03,515 INFO L268 CegarLoopResult]: For program point L872(line 872) no Hoare annotation was computed. [2020-09-25 02:07:03,515 INFO L268 CegarLoopResult]: For program point L873-1(lines 873 874) no Hoare annotation was computed. [2020-09-25 02:07:03,515 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-09-25 02:07:03,515 INFO L268 CegarLoopResult]: For program point L872-1(line 872) no Hoare annotation was computed. [2020-09-25 02:07:03,516 INFO L268 CegarLoopResult]: For program point L873-2(line 873) no Hoare annotation was computed. [2020-09-25 02:07:03,516 INFO L268 CegarLoopResult]: For program point L873-3(line 873) no Hoare annotation was computed. [2020-09-25 02:07:03,516 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 02:07:03,516 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-09-25 02:07:03,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:07:03 BoogieIcfgContainer [2020-09-25 02:07:03,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:07:03,532 INFO L168 Benchmark]: Toolchain (without parser) took 30428.15 ms. Allocated memory was 139.5 MB in the beginning and 453.5 MB in the end (delta: 314.0 MB). Free memory was 100.4 MB in the beginning and 301.4 MB in the end (delta: -200.9 MB). Peak memory consumption was 329.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:07:03,533 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 02:07:03,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.93 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 168.8 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:07:03,535 INFO L168 Benchmark]: Boogie Preprocessor took 81.56 ms. Allocated memory is still 203.4 MB. Free memory was 168.8 MB in the beginning and 165.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:07:03,536 INFO L168 Benchmark]: RCFGBuilder took 715.56 ms. Allocated memory is still 203.4 MB. Free memory was 165.9 MB in the beginning and 118.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:07:03,539 INFO L168 Benchmark]: TraceAbstraction took 28953.13 ms. Allocated memory was 203.4 MB in the beginning and 453.5 MB in the end (delta: 250.1 MB). Free memory was 118.0 MB in the beginning and 301.4 MB in the end (delta: -183.4 MB). Peak memory consumption was 282.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:07:03,550 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.93 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 168.8 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.56 ms. Allocated memory is still 203.4 MB. Free memory was 168.8 MB in the beginning and 165.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 715.56 ms. Allocated memory is still 203.4 MB. Free memory was 165.9 MB in the beginning and 118.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28953.13 ms. Allocated memory was 203.4 MB in the beginning and 453.5 MB in the end (delta: 250.1 MB). Free memory was 118.0 MB in the beginning and 301.4 MB in the end (delta: -183.4 MB). Peak memory consumption was 282.9 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: 27.6s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 465 SDtfs, 683 SDslu, 1268 SDs, 0 SdLazy, 2542 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 36 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 66 PreInvPairs, 76 NumberOfFragments, 429 HoareAnnotationTreeSize, 66 FomulaSimplifications, 226 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1449 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 21.9s InterpolantComputationTime, 516 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 508 ConstructedInterpolants, 0 QuantifiedInterpolants, 127493 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 127/149 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...