/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 --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 interpolation-heuristic=FIRST --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-eb0fd7c [2020-09-21 11:23:30,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:23:30,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:23:30,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:23:30,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:23:30,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:23:30,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:23:30,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:23:30,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:23:30,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:23:30,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:23:30,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:23:30,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:23:30,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:23:30,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:23:30,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:23:30,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:23:30,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:23:30,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:23:30,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:23:30,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:23:30,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:23:30,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:23:30,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:23:30,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:23:30,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:23:30,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:23:30,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:23:30,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:23:30,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:23:30,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:23:30,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:23:30,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:23:30,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:23:30,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:23:30,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:23:31,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:23:31,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:23:31,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:23:31,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:23:31,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:23:31,004 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 [2020-09-21 11:23:31,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:23:31,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:23:31,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:23:31,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:23:31,037 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:23:31,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:23:31,037 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:23:31,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:23:31,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:23:31,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:23:31,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:23:31,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:23:31,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:23:31,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:23:31,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:23:31,040 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:23:31,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:23:31,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:23:31,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:23:31,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:23:31,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:23:31,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:23:31,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:23:31,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:23:31,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:23:31,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:23:31,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:23:31,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:23:31,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:23:31,044 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:23:31,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:23:31,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:23:31,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:23:31,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:23:31,606 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:23:31,607 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-21 11:23:31,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13a587bd/4737b661f5604699807b2731f71b39c2/FLAGfbb2800d2 [2020-09-21 11:23:32,303 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:23:32,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-21 11:23:32,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13a587bd/4737b661f5604699807b2731f71b39c2/FLAGfbb2800d2 [2020-09-21 11:23:32,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13a587bd/4737b661f5604699807b2731f71b39c2 [2020-09-21 11:23:32,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:23:32,607 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:23:32,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:32,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:23:32,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:23:32,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:32" (1/1) ... [2020-09-21 11:23:32,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78985504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:32, skipping insertion in model container [2020-09-21 11:23:32,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:32" (1/1) ... [2020-09-21 11:23:32,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:23:32,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:23:33,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:33,177 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:23:33,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:33,326 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:23:33,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33 WrapperNode [2020-09-21 11:23:33,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:33,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:23:33,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:23:33,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:23:33,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (1/1) ... [2020-09-21 11:23:33,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (1/1) ... [2020-09-21 11:23:33,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (1/1) ... [2020-09-21 11:23:33,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (1/1) ... [2020-09-21 11:23:33,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (1/1) ... [2020-09-21 11:23:33,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (1/1) ... [2020-09-21 11:23:33,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (1/1) ... [2020-09-21 11:23:33,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:23:33,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:23:33,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:23:33,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:23:33,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (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 [2020-09-21 11:23:33,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:23:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:23:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-21 11:23:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-21 11:23:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-21 11:23:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-21 11:23:33,498 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-21 11:23:33,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:23:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:23:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-21 11:23:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-21 11:23:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-21 11:23:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-21 11:23:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-21 11:23:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-21 11:23:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-21 11:23:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-21 11:23:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-21 11:23:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-21 11:23:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-21 11:23:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-21 11:23:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-21 11:23:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-21 11:23:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-21 11:23:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-21 11:23:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-21 11:23:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-21 11:23:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-21 11:23:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-21 11:23:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-21 11:23:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-21 11:23:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-21 11:23:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-21 11:23:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-21 11:23:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-21 11:23:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-21 11:23:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-21 11:23:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-21 11:23:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-21 11:23:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-21 11:23:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-21 11:23:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-21 11:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-21 11:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-21 11:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-21 11:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-21 11:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-21 11:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-21 11:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-21 11:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-21 11:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-21 11:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-21 11:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-21 11:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-21 11:23:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-21 11:23:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-21 11:23:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-21 11:23:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-21 11:23:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-21 11:23:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-21 11:23:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-21 11:23:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-21 11:23:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-21 11:23:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-21 11:23:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-21 11:23:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-21 11:23:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-21 11:23:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-21 11:23:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-21 11:23:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-21 11:23:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-21 11:23:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-21 11:23:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-21 11:23:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-21 11:23:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-21 11:23:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-21 11:23:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-21 11:23:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-21 11:23:33,511 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-21 11:23:33,511 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-21 11:23:33,511 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-21 11:23:33,512 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-21 11:23:33,512 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-21 11:23:33,512 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-21 11:23:33,512 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-21 11:23:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-21 11:23:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-21 11:23:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-21 11:23:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-21 11:23:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-21 11:23:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-21 11:23:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-21 11:23:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-21 11:23:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-21 11:23:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-21 11:23:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-21 11:23:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-21 11:23:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-21 11:23:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-21 11:23:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-21 11:23:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-21 11:23:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-21 11:23:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-21 11:23:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-21 11:23:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-21 11:23:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-21 11:23:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-21 11:23:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-21 11:23:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-21 11:23:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-21 11:23:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:23:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 11:23:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-21 11:23:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:23:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-21 11:23:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-21 11:23:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-21 11:23:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-21 11:23:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-21 11:23:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-21 11:23:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-21 11:23:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-21 11:23:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-21 11:23:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-21 11:23:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-21 11:23:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-21 11:23:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-21 11:23:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-21 11:23:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:23:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-21 11:23:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-21 11:23:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-21 11:23:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-21 11:23:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:23:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:23:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:23:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-21 11:23:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:23:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:23:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:23:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:23:34,086 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:23:34,087 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:23:34,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:34 BoogieIcfgContainer [2020-09-21 11:23:34,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:23:34,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:23:34,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:23:34,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:23:34,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:23:32" (1/3) ... [2020-09-21 11:23:34,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c035c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:34, skipping insertion in model container [2020-09-21 11:23:34,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:33" (2/3) ... [2020-09-21 11:23:34,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c035c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:34, skipping insertion in model container [2020-09-21 11:23:34,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:34" (3/3) ... [2020-09-21 11:23:34,102 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-21 11:23:34,115 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:23:34,127 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:23:34,152 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:23:34,186 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:23:34,187 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:23:34,187 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:23:34,187 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:23:34,187 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:23:34,187 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:23:34,188 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:23:34,188 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:23:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-09-21 11:23:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 11:23:34,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:34,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:34,222 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:34,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1135050545, now seen corresponding path program 1 times [2020-09-21 11:23:34,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:34,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637353506] [2020-09-21 11:23:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:34,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:34,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:34,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:34,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:34,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:23:34,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:34,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:23:34,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:23:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:34,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:34,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:34,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:34,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:34,634 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:34,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:34,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:34,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:34,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:34,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:34,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:34,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:34,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:34,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637353506] [2020-09-21 11:23:34,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:34,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:23:34,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040825465] [2020-09-21 11:23:34,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:23:34,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:34,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:23:34,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:23:34,711 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 7 states. [2020-09-21 11:23:35,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:35,165 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2020-09-21 11:23:35,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:23:35,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-09-21 11:23:35,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:35,193 INFO L225 Difference]: With dead ends: 88 [2020-09-21 11:23:35,194 INFO L226 Difference]: Without dead ends: 43 [2020-09-21 11:23:35,201 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 [2020-09-21 11:23:35,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-21 11:23:35,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-09-21 11:23:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 11:23:35,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-09-21 11:23:35,282 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 13 [2020-09-21 11:23:35,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:35,282 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-09-21 11:23:35,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:23:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-09-21 11:23:35,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-21 11:23:35,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:35,286 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:23:35,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:23:35,286 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:35,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:35,287 INFO L82 PathProgramCache]: Analyzing trace with hash -925661111, now seen corresponding path program 1 times [2020-09-21 11:23:35,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:35,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164964187] [2020-09-21 11:23:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:35,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:35,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:35,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:35,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:35,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 11:23:35,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:23:35,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:23:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-21 11:23:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:35,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:35,519 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:35,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:35,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:35,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:35,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:35,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:35,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:35,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:35,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:35,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:35,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:35,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:35,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:35,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:35,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:35,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:35,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:35,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:35,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:35,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:35,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:35,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:35,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:35,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:35,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:35,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:35,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:35,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:35,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:35,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:35,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:35,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:35,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:23:35,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:35,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:35,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:35,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:35,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:35,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:35,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:35,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:35,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:35,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:23:35,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:23:35,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:35,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:35,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:35,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:35,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:35,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:35,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:35,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:35,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:23:35,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:35,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:35,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:35,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:23:35,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:23:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:23:35,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164964187] [2020-09-21 11:23:35,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:35,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:23:35,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435713882] [2020-09-21 11:23:35,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:23:35,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:35,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:23:35,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:35,746 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 9 states. [2020-09-21 11:23:35,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:35,977 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2020-09-21 11:23:35,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:23:35,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-09-21 11:23:35,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:35,980 INFO L225 Difference]: With dead ends: 67 [2020-09-21 11:23:35,981 INFO L226 Difference]: Without dead ends: 48 [2020-09-21 11:23:35,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:35,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-21 11:23:35,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-09-21 11:23:35,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-21 11:23:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-09-21 11:23:35,995 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 38 [2020-09-21 11:23:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:35,996 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-09-21 11:23:35,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:23:35,996 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-09-21 11:23:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-21 11:23:35,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:35,998 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:23:35,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:23:35,999 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:35,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:35,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1219064118, now seen corresponding path program 1 times [2020-09-21 11:23:35,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:36,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551249577] [2020-09-21 11:23:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 11:23:36,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:23:36,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:23:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:23:36,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:23:36,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:36,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:36,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:36,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:36,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:23:36,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:23:36,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:36,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:23:36,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:36,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:36,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:23:36,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,281 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:36,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:36,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:36,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:36,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:23:36,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,293 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:36,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:36,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:36,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:36,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:36,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:23:36,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551249577] [2020-09-21 11:23:36,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:36,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:23:36,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208306999] [2020-09-21 11:23:36,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:23:36,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:36,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:23:36,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:36,306 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 9 states. [2020-09-21 11:23:36,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:36,496 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2020-09-21 11:23:36,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:23:36,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-09-21 11:23:36,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:36,498 INFO L225 Difference]: With dead ends: 69 [2020-09-21 11:23:36,499 INFO L226 Difference]: Without dead ends: 43 [2020-09-21 11:23:36,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:36,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-21 11:23:36,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-09-21 11:23:36,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 11:23:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-09-21 11:23:36,509 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 38 [2020-09-21 11:23:36,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:36,509 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-09-21 11:23:36,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:23:36,510 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-09-21 11:23:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-21 11:23:36,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:36,511 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:23:36,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:23:36,512 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:36,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:36,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1188044311, now seen corresponding path program 1 times [2020-09-21 11:23:36,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:36,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116825064] [2020-09-21 11:23:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 11:23:36,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-21 11:23:36,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:23:36,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:36,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:23:36,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:36,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:23:36,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:23:36,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:36,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:23:36,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:36,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:36,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:36,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:36,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:23:36,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:36,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:36,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:36,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:36,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:36,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:36,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:36,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:36,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:36,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:36,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:23:36,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:23:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:36,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-09-21 11:23:37,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:37,050 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:37,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:37,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:37,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:23:37,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:37,079 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:23:37,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116825064] [2020-09-21 11:23:37,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:37,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 11:23:37,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663132023] [2020-09-21 11:23:37,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:23:37,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:37,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:23:37,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:23:37,082 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 15 states. [2020-09-21 11:23:37,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:37,966 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2020-09-21 11:23:37,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:23:37,966 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2020-09-21 11:23:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:37,968 INFO L225 Difference]: With dead ends: 75 [2020-09-21 11:23:37,968 INFO L226 Difference]: Without dead ends: 62 [2020-09-21 11:23:37,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:23:37,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-21 11:23:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2020-09-21 11:23:37,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-21 11:23:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2020-09-21 11:23:37,981 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 38 [2020-09-21 11:23:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:37,982 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2020-09-21 11:23:37,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:23:37,982 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2020-09-21 11:23:37,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-21 11:23:37,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:37,984 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:23:37,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:23:37,984 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:37,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:37,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1335597358, now seen corresponding path program 1 times [2020-09-21 11:23:37,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:37,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852058424] [2020-09-21 11:23:37,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:38,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:38,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:38,115 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:38,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:38,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:23:38,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:38,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-21 11:23:38,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:23:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:23:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:23:38,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:38,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:38,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:38,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:38,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:38,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:38,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:38,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:38,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:38,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:38,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:38,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:38,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:38,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:38,251 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:38,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:38,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:38,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:23:38,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:38,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:38,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:23:38,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:38,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:38,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:38,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:38,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:38,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:38,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:23:38,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:23:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:38,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:38,338 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:38,338 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:38,339 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:38,339 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:38,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:38,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:38,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:23:38,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:23:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:38,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:38,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:38,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:38,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:38,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:38,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:38,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:38,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:38,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:23:38,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:38,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:38,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:23:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:38,502 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:38,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:38,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:38,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:38,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:38,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:38,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:23:38,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:38,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:38,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:38,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:23:38,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 11:23:38,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852058424] [2020-09-21 11:23:38,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:38,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-21 11:23:38,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027669869] [2020-09-21 11:23:38,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-21 11:23:38,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:38,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-21 11:23:38,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:23:38,567 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 22 states. [2020-09-21 11:23:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:39,654 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2020-09-21 11:23:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:23:39,655 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 45 [2020-09-21 11:23:39,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:39,657 INFO L225 Difference]: With dead ends: 65 [2020-09-21 11:23:39,657 INFO L226 Difference]: Without dead ends: 58 [2020-09-21 11:23:39,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=1125, Unknown=0, NotChecked=0, Total=1260 [2020-09-21 11:23:39,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-21 11:23:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-09-21 11:23:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 11:23:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2020-09-21 11:23:39,671 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 45 [2020-09-21 11:23:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:39,671 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2020-09-21 11:23:39,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-21 11:23:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2020-09-21 11:23:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-21 11:23:39,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:39,673 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:23:39,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:23:39,673 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:39,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:39,674 INFO L82 PathProgramCache]: Analyzing trace with hash 526250732, now seen corresponding path program 1 times [2020-09-21 11:23:39,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:39,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945838470] [2020-09-21 11:23:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:39,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:39,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:39,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:39,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:39,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:23:39,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:39,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 11:23:39,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:23:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:39,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:23:39,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:39,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:39,902 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:39,902 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:39,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:39,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:39,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:39,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:23:39,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:23:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:39,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:39,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:39,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:39,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:39,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:39,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:39,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:39,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:23:39,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:23:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:39,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:39,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:40,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:40,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:40,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:40,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:40,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:40,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:40,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:23:40,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:40,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:40,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:40,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:40,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:40,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:40,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:40,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:40,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:40,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:40,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:40,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:40,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:23:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:40,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:40,062 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:40,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:40,063 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:40,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:40,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:40,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:40,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:40,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:23:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:40,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:40,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:40,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:40,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:40,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:40,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:40,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:23:40,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:23:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:40,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 11:23:40,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945838470] [2020-09-21 11:23:40,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:40,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 11:23:40,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475599981] [2020-09-21 11:23:40,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 11:23:40,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:40,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 11:23:40,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:23:40,141 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 16 states. [2020-09-21 11:23:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:40,785 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-09-21 11:23:40,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:23:40,790 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2020-09-21 11:23:40,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:40,792 INFO L225 Difference]: With dead ends: 64 [2020-09-21 11:23:40,792 INFO L226 Difference]: Without dead ends: 61 [2020-09-21 11:23:40,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:23:40,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-21 11:23:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2020-09-21 11:23:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 11:23:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-09-21 11:23:40,811 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 45 [2020-09-21 11:23:40,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:40,812 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-09-21 11:23:40,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 11:23:40,812 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-09-21 11:23:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:23:40,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:40,816 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-21 11:23:40,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:23:40,816 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:40,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:40,817 INFO L82 PathProgramCache]: Analyzing trace with hash -2119488644, now seen corresponding path program 1 times [2020-09-21 11:23:40,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:40,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706284550] [2020-09-21 11:23:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:40,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:40,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:40,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:40,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:40,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:23:40,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:40,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-21 11:23:40,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:23:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:23:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-21 11:23:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:41,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:41,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:41,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:41,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:41,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:41,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:41,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:41,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:41,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:41,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:41,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:41,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:41,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:41,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:41,058 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:41,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:41,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:41,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:41,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:41,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:41,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:23:41,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:41,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:23:41,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:41,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:41,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:41,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:41,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:41,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:41,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:23:41,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:41,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:23:41,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:41,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:41,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:41,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:41,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:41,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:41,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:41,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:41,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:23:41,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:23:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:41,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:41,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:41,211 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:41,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:41,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:41,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:41,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:41,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:23:41,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:41,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:41,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:41,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:41,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:23:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:41,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:41,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:41,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:41,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:41,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:41,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:41,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:41,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:41,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:23:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:41,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:41,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:41,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:41,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:41,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:41,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:41,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:23:41,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:23:41,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:41,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:23:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:41,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:41,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:41,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:41,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:41,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:23:41,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:41,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:23:41,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:23:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:41,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:23:41,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:23:41,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706284550] [2020-09-21 11:23:41,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:41,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-21 11:23:41,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045740209] [2020-09-21 11:23:41,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-21 11:23:41,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:41,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-21 11:23:41,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:23:41,411 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 22 states. [2020-09-21 11:23:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:42,436 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-09-21 11:23:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:23:42,437 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2020-09-21 11:23:42,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:42,438 INFO L225 Difference]: With dead ends: 64 [2020-09-21 11:23:42,439 INFO L226 Difference]: Without dead ends: 58 [2020-09-21 11:23:42,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=1131, Unknown=0, NotChecked=0, Total=1260 [2020-09-21 11:23:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-21 11:23:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-09-21 11:23:42,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-21 11:23:42,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2020-09-21 11:23:42,451 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 57 [2020-09-21 11:23:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:42,451 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-09-21 11:23:42,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-21 11:23:42,452 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2020-09-21 11:23:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:23:42,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:42,455 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-21 11:23:42,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:23:42,456 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:42,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:42,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1366132026, now seen corresponding path program 1 times [2020-09-21 11:23:42,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:42,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262213628] [2020-09-21 11:23:42,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:42,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:42,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:42,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:42,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:42,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:23:42,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:42,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-21 11:23:42,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:23:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:23:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:23:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:42,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:42,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:42,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:42,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:42,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:42,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:42,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:42,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:23:42,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:42,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:42,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:42,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:42,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:42,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:42,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:42,720 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:42,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:42,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:42,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:42,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:42,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:23:42,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:23:42,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:42,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:42,759 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:42,760 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:42,760 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:42,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:42,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:42,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:42,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:42,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:42,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:42,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:42,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:23:42,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:42,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:42,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:42,809 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:42,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:42,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:42,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:42,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:42,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:23:42,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:42,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:23:42,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:42,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:42,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:42,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:42,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:42,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:42,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:42,901 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:42,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:42,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:42,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:23:42,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:42,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:42,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:42,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:23:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:42,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:42,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:42,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:42,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:42,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:42,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:42,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:42,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:42,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:42,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:23:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:42,998 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:42,998 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:42,999 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:42,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:42,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:42,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:42,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:23:43,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:23:43,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:43,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:23:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:43,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:43,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:43,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:43,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:43,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:23:43,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:43,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:23:43,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:43,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:23:43,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:23:43,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:23:43,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262213628] [2020-09-21 11:23:43,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:43,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-21 11:23:43,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153382201] [2020-09-21 11:23:43,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-21 11:23:43,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:43,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-21 11:23:43,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:23:43,083 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 23 states. [2020-09-21 11:23:43,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:43,986 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-09-21 11:23:43,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:23:43,987 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 57 [2020-09-21 11:23:43,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:43,988 INFO L225 Difference]: With dead ends: 63 [2020-09-21 11:23:43,988 INFO L226 Difference]: Without dead ends: 49 [2020-09-21 11:23:43,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2020-09-21 11:23:43,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-21 11:23:43,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-09-21 11:23:43,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-21 11:23:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-09-21 11:23:43,996 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 57 [2020-09-21 11:23:43,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:43,997 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-09-21 11:23:43,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-21 11:23:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-09-21 11:23:43,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:23:43,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:43,998 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-21 11:23:43,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:23:43,999 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:43,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:43,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1588672638, now seen corresponding path program 1 times [2020-09-21 11:23:43,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:44,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930088444] [2020-09-21 11:23:44,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,170 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,170 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:23:44,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-21 11:23:44,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:23:44,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:44,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-21 11:23:44,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:44,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:23:44,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:23:44,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,341 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,341 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,341 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:44,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:23:44,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:44,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,413 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:44,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:23:44,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:44,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:44,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:44,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:44,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:23:44,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:23:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:44,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:44,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:23:44,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:44,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:44,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:44,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:23:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,545 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:44,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:44,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:44,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:23:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:44,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:44,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:44,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:44,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:44,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:23:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:44,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:44,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:44,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:44,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:44,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:23:44,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:44,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:23:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 11:23:44,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930088444] [2020-09-21 11:23:44,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:44,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-21 11:23:44,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467241314] [2020-09-21 11:23:44,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-21 11:23:44,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:44,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-21 11:23:44,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:23:44,600 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 18 states. [2020-09-21 11:23:45,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:45,501 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2020-09-21 11:23:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:23:45,501 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 57 [2020-09-21 11:23:45,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:45,502 INFO L225 Difference]: With dead ends: 60 [2020-09-21 11:23:45,502 INFO L226 Difference]: Without dead ends: 52 [2020-09-21 11:23:45,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=171, Invalid=951, Unknown=0, NotChecked=0, Total=1122 [2020-09-21 11:23:45,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-21 11:23:45,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2020-09-21 11:23:45,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-21 11:23:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-09-21 11:23:45,522 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 57 [2020-09-21 11:23:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:45,525 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-09-21 11:23:45,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-21 11:23:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-09-21 11:23:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:23:45,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:45,527 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-21 11:23:45,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:23:45,527 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:45,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:45,527 INFO L82 PathProgramCache]: Analyzing trace with hash 779326012, now seen corresponding path program 1 times [2020-09-21 11:23:45,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:45,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573070246] [2020-09-21 11:23:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:23:45,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:23:45,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:23:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 11:23:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 11:23:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:45,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:45,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:45,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:45,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:45,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:45,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:45,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:45,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,639 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:45,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:45,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:45,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,646 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,646 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,646 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:23:45,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:45,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:45,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:45,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:23:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:45,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:23:45,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:23:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:23:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:23:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:23:45,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:23:45,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:23:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:23:45,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:23:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:45,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:45,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:45,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:45,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:45,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:23:45,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:45,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:23:45,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:23:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:23:45,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:45,762 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 11:23:45,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573070246] [2020-09-21 11:23:45,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:45,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:23:45,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160019436] [2020-09-21 11:23:45,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:23:45,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:45,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:23:45,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:23:45,764 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 10 states. [2020-09-21 11:23:46,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:46,135 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-21 11:23:46,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:23:46,136 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-09-21 11:23:46,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:46,138 INFO L225 Difference]: With dead ends: 47 [2020-09-21 11:23:46,138 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:23:46,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:23:46,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:23:46,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:23:46,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:23:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:23:46,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2020-09-21 11:23:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:46,140 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:23:46,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:23:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:23:46,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:23:46,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:23:46,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:23:47,109 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 12 [2020-09-21 11:23:47,348 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 19 [2020-09-21 11:23:47,655 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-09-21 11:23:47,656 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)|) (<= 8 my_malloc_~size)) (not (<= 8 |my_malloc_#in~size|))) [2020-09-21 11:23:47,656 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-09-21 11:23:47,656 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 (<= 8 |my_malloc_#in~size|))) [2020-09-21 11:23:47,656 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-09-21 11:23:47,656 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:23:47,657 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|)) [2020-09-21 11:23:47,658 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:23:47,658 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-09-21 11:23:47,658 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-09-21 11:23:47,658 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-09-21 11:23:47,658 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)) [2020-09-21 11:23:47,658 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (or (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) [2020-09-21 11:23:47,658 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-09-21 11:23:47,658 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-09-21 11:23:47,658 INFO L268 CegarLoopResult]: For program point L891-2(lines 889 893) no Hoare annotation was computed. [2020-09-21 11:23:47,659 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (= |old(~elem~0.offset)| |list_add_#in~new.offset|) [2020-09-21 11:23:47,659 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-09-21 11:23:47,659 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-09-21 11:23:47,659 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-21 11:23:47,659 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-21 11:23:47,659 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-21 11:23:47,659 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-09-21 11:23:47,659 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:23:47,659 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~guard_malloc_counter~0.offset 0)) [2020-09-21 11:23:47,659 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:23:47,660 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:23:47,660 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base) (= ~guard_malloc_counter~0.offset 0))) [2020-09-21 11:23:47,660 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-09-21 11:23:47,660 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (let ((.cse0 (not (= main_~dev2~0.offset ~elem~0.offset)))) (or (and (= ~elem~0.offset 0) .cse0 (<= 1 ~guard_malloc_counter~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) (not (= main_~dev2~0.offset main_~dev1~0.offset)) .cse0))) [2020-09-21 11:23:47,660 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-09-21 11:23:47,660 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (let ((.cse1 (<= 1 ~guard_malloc_counter~0.offset)) (.cse2 (not (= main_~dev2~0.offset main_~dev1~0.offset))) (.cse0 (not (= main_~dev2~0.offset ~elem~0.offset)))) (or (and (= ~elem~0.offset 0) .cse0 .cse1) (and .cse2 (<= 2 main_~dev2~0.offset) (= main_~dev2~0.base ~elem~0.base) .cse1) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) .cse2 .cse0))) [2020-09-21 11:23:47,661 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (not (= main_~dev1~0.offset ~elem~0.offset)) (<= 2 main_~dev2~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) (<= 1 ~guard_malloc_counter~0.offset)) (not (= |old(~elem~0.offset)| 0))) [2020-09-21 11:23:47,661 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-09-21 11:23:47,661 INFO L264 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse0 (not (= main_~dev1~0.offset ~elem~0.offset))) (.cse1 (= main_~dev2~0.offset ~elem~0.offset)) (.cse2 (<= 1 ~guard_malloc_counter~0.offset))) (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and .cse0 (<= 2 main_~dev2~0.offset) (= main_~dev2~0.base ~elem~0.base) .cse1 .cse2) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) .cse0 (not .cse1) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) .cse2))) [2020-09-21 11:23:47,661 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (or (and (= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) (<= 1 ~guard_malloc_counter~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0)) (not (= |old(~elem~0.offset)| 0))) [2020-09-21 11:23:47,661 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-09-21 11:23:47,661 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base) (= ~guard_malloc_counter~0.offset 0))) [2020-09-21 11:23:47,661 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-09-21 11:23:47,661 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-09-21 11:23:47,661 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) 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 (<= 8 |__getMemory_#in~size|)) (not (= ~elem~0.offset 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|))) [2020-09-21 11:23:47,661 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-09-21 11:23:47,662 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-09-21 11:23:47,662 INFO L268 CegarLoopResult]: For program point L873(lines 873 874) no Hoare annotation was computed. [2020-09-21 11:23:47,662 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-09-21 11:23:47,662 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (<= 8 |__getMemory_#in~size|)) (not (= ~elem~0.offset 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|))) [2020-09-21 11:23:47,662 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-09-21 11:23:47,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:23:47 BoogieIcfgContainer [2020-09-21 11:23:47,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:23:47,670 INFO L168 Benchmark]: Toolchain (without parser) took 15068.48 ms. Allocated memory was 147.3 MB in the beginning and 390.1 MB in the end (delta: 242.7 MB). Free memory was 101.0 MB in the beginning and 127.6 MB in the end (delta: -26.6 MB). Peak memory consumption was 216.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:47,671 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:23:47,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.64 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 169.3 MB in the end (delta: -69.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:47,673 INFO L168 Benchmark]: Boogie Preprocessor took 70.37 ms. Allocated memory is still 203.9 MB. Free memory was 169.3 MB in the beginning and 165.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:47,673 INFO L168 Benchmark]: RCFGBuilder took 693.30 ms. Allocated memory is still 203.9 MB. Free memory was 165.8 MB in the beginning and 120.2 MB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:47,674 INFO L168 Benchmark]: TraceAbstraction took 13575.30 ms. Allocated memory was 203.9 MB in the beginning and 390.1 MB in the end (delta: 186.1 MB). Free memory was 119.5 MB in the beginning and 127.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 178.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:47,677 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.64 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 169.3 MB in the end (delta: -69.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.37 ms. Allocated memory is still 203.9 MB. Free memory was 169.3 MB in the beginning and 165.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 693.30 ms. Allocated memory is still 203.9 MB. Free memory was 165.8 MB in the beginning and 120.2 MB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13575.30 ms. Allocated memory was 203.9 MB in the beginning and 390.1 MB in the end (delta: 186.1 MB). Free memory was 119.5 MB in the beginning and 127.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 178.0 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, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 360 SDtfs, 424 SDslu, 1080 SDs, 0 SdLazy, 4583 SolverSat, 343 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=7, 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, 10 MinimizatonAttempts, 41 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 73 PreInvPairs, 84 NumberOfFragments, 354 HoareAnnotationTreeSize, 73 FomulaSimplifications, 2164 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1749 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 445 NumberOfCodeBlocks, 445 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 435 ConstructedInterpolants, 0 QuantifiedInterpolants, 85057 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 90/143 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...