/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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-c90d42b [2020-09-24 16:01:05,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:01:05,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:01:05,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:01:05,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:01:05,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:01:05,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:01:05,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:01:05,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:01:05,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:01:05,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:01:05,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:01:05,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:01:05,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:01:05,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:01:05,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:01:05,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:01:05,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:01:05,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:01:05,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:01:05,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:01:05,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:01:05,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:01:05,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:01:05,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:01:05,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:01:05,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:01:05,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:01:05,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:01:05,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:01:05,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:01:05,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:01:05,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:01:05,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:01:05,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:01:05,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:01:05,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:01:05,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:01:05,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:01:05,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:01:05,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:01:05,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:01:05,577 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:01:05,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:01:05,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:01:05,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:01:05,580 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:01:05,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:01:05,580 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:01:05,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:01:05,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:01:05,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:01:05,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:01:05,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:01:05,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:01:05,582 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:01:05,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:01:05,582 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:01:05,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:01:05,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:01:05,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:01:05,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:01:05,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:01:05,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:01:05,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:01:05,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:01:05,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:01:05,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:01:05,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:01:05,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:01:05,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:01:05,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 16:01:06,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:01:06,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:01:06,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:01:06,100 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:01:06,100 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:01:06,102 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-24 16:01:06,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c92c7551/024a3b4f5f4f43aba039ee296c602045/FLAG66eb1e86a [2020-09-24 16:01:06,834 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:01:06,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-24 16:01:06,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c92c7551/024a3b4f5f4f43aba039ee296c602045/FLAG66eb1e86a [2020-09-24 16:01:07,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c92c7551/024a3b4f5f4f43aba039ee296c602045 [2020-09-24 16:01:07,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:01:07,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:01:07,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:01:07,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:01:07,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:01:07,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07, skipping insertion in model container [2020-09-24 16:01:07,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:01:07,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:01:07,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:01:07,584 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:01:07,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:01:07,822 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:01:07,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07 WrapperNode [2020-09-24 16:01:07,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:01:07,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:01:07,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:01:07,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:01:07,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:01:07,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:01:07,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:01:07,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:01:07,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:01:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:01:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:01:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-24 16:01:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-24 16:01:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-24 16:01:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-24 16:01:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-24 16:01:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:01:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:01:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-24 16:01:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-24 16:01:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-24 16:01:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-24 16:01:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-24 16:01:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-24 16:01:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-24 16:01:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-24 16:01:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-24 16:01:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-24 16:01:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-24 16:01:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-24 16:01:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-24 16:01:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-24 16:01:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-24 16:01:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-24 16:01:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-24 16:01:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-24 16:01:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-24 16:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-24 16:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-24 16:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-24 16:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-24 16:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-24 16:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-24 16:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-24 16:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-24 16:01:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-24 16:01:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-24 16:01:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-24 16:01:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:01:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 16:01:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 16:01:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:01:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 16:01:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-24 16:01:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 16:01:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-24 16:01:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-24 16:01:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-24 16:01:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-24 16:01:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-24 16:01:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-24 16:01:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-24 16:01:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-24 16:01:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-24 16:01:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-24 16:01:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-24 16:01:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:01:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-24 16:01:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-24 16:01:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-24 16:01:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-24 16:01:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:01:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:01:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:01:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 16:01:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:01:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:01:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:01:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:01:08,566 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:01:08,567 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 16:01:08,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:01:08 BoogieIcfgContainer [2020-09-24 16:01:08,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:01:08,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:01:08,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:01:08,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:01:08,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:01:07" (1/3) ... [2020-09-24 16:01:08,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7223547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:01:08, skipping insertion in model container [2020-09-24 16:01:08,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (2/3) ... [2020-09-24 16:01:08,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7223547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:01:08, skipping insertion in model container [2020-09-24 16:01:08,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:01:08" (3/3) ... [2020-09-24 16:01:08,583 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-24 16:01:08,593 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:01:08,605 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:01:08,629 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:01:08,660 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:01:08,660 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:01:08,660 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:01:08,660 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:01:08,660 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:01:08,660 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:01:08,660 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:01:08,661 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:01:08,689 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-24 16:01:08,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 16:01:08,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:08,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:08,698 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:08,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:08,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-24 16:01:08,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:08,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429743717] [2020-09-24 16:01:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:08,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:08,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:08,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:08,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:08,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 16:01:08,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:08,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 16:01:08,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:08,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 16:01:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:01:08,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:09,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:09,130 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:09,130 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:09,131 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:09,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:09,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:09,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:09,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:09,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:09,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:01:09,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:01:09,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429743717] [2020-09-24 16:01:09,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:01:09,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:01:09,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124551116] [2020-09-24 16:01:09,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:01:09,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:09,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:01:09,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:01:09,250 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-24 16:01:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:09,733 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-24 16:01:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 16:01:09,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-24 16:01:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:09,750 INFO L225 Difference]: With dead ends: 126 [2020-09-24 16:01:09,750 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 16:01:09,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:01:09,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 16:01:09,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-24 16:01:09,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 16:01:09,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-24 16:01:09,820 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-24 16:01:09,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:09,821 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-24 16:01:09,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:01:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-24 16:01:09,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 16:01:09,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:09,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:09,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:01:09,825 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:09,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:09,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-24 16:01:09,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:09,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173523871] [2020-09-24 16:01:09,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:09,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:09,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:09,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:09,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:09,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 16:01:09,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:09,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 16:01:09,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:09,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:09,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-24 16:01:09,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:09,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:10,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:10,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:10,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:10,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,075 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:10,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:10,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:10,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:10,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:10,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:10,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:10,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:10,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:10,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 16:01:10,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:10,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:10,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:01:10,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:10,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,295 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:01:10,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173523871] [2020-09-24 16:01:10,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:01:10,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:01:10,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732057254] [2020-09-24 16:01:10,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:01:10,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:10,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:01:10,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:01:10,300 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 9 states. [2020-09-24 16:01:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:10,625 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2020-09-24 16:01:10,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:01:10,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-24 16:01:10,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:10,629 INFO L225 Difference]: With dead ends: 97 [2020-09-24 16:01:10,629 INFO L226 Difference]: Without dead ends: 72 [2020-09-24 16:01:10,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:01:10,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-24 16:01:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-09-24 16:01:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-24 16:01:10,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2020-09-24 16:01:10,645 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 61 [2020-09-24 16:01:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:10,645 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2020-09-24 16:01:10,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:01:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2020-09-24 16:01:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 16:01:10,648 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:10,648 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:10,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:01:10,649 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:10,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:10,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1617160578, now seen corresponding path program 1 times [2020-09-24 16:01:10,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:10,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482722324] [2020-09-24 16:01:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,698 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,698 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 16:01:10,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 16:01:10,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:10,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:01:10,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 16:01:10,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:10,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:10,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:10,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:10,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:01:10,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:10,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:10,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:10,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:10,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,953 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:10,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:10,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 16:01:10,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:10,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:10,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:10,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,977 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 16:01:10,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482722324] [2020-09-24 16:01:10,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:10,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 16:01:10,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927898306] [2020-09-24 16:01:10,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:01:10,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:10,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:01:10,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:01:10,980 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 9 states. [2020-09-24 16:01:11,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:11,220 INFO L93 Difference]: Finished difference Result 100 states and 110 transitions. [2020-09-24 16:01:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:01:11,221 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-24 16:01:11,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:11,222 INFO L225 Difference]: With dead ends: 100 [2020-09-24 16:01:11,223 INFO L226 Difference]: Without dead ends: 64 [2020-09-24 16:01:11,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:01:11,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-24 16:01:11,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2020-09-24 16:01:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 16:01:11,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-09-24 16:01:11,234 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 61 [2020-09-24 16:01:11,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:11,235 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-09-24 16:01:11,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:01:11,235 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-09-24 16:01:11,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 16:01:11,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:11,236 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:11,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:01:11,237 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:11,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:11,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1531514875, now seen corresponding path program 1 times [2020-09-24 16:01:11,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:11,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641829990] [2020-09-24 16:01:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 16:01:11,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 16:01:11,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 16:01:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:01:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 16:01:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,538 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,538 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:11,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:11,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:01:11,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,655 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:11,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 16:01:11,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:11,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:11,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,727 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,727 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:11,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 16:01:11,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:11,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 16:01:11,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:11,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:11,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 16:01:11,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:11,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:01:11,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641829990] [2020-09-24 16:01:11,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:11,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 16:01:11,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389155584] [2020-09-24 16:01:11,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 16:01:11,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:11,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 16:01:11,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:01:11,967 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 19 states. [2020-09-24 16:01:13,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:13,383 INFO L93 Difference]: Finished difference Result 122 states and 130 transitions. [2020-09-24 16:01:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 16:01:13,384 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 61 [2020-09-24 16:01:13,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:13,386 INFO L225 Difference]: With dead ends: 122 [2020-09-24 16:01:13,386 INFO L226 Difference]: Without dead ends: 100 [2020-09-24 16:01:13,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=312, Invalid=1328, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 16:01:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-24 16:01:13,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 84. [2020-09-24 16:01:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-24 16:01:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2020-09-24 16:01:13,421 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 61 [2020-09-24 16:01:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:13,422 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2020-09-24 16:01:13,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 16:01:13,422 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2020-09-24 16:01:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 16:01:13,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:13,426 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:13,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:01:13,427 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:13,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:13,427 INFO L82 PathProgramCache]: Analyzing trace with hash 2098824736, now seen corresponding path program 1 times [2020-09-24 16:01:13,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:13,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587614672] [2020-09-24 16:01:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 16:01:13,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 16:01:13,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 16:01:13,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:01:13,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 16:01:13,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:13,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:13,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:13,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:13,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:13,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:01:13,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,727 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:13,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 16:01:13,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:13,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:01:13,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:13,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:13,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:13,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:13,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:13,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:13,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:13,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 16:01:13,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:13,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:13,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:13,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:13,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:01:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:01:13,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587614672] [2020-09-24 16:01:13,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:13,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 16:01:13,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163082713] [2020-09-24 16:01:13,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 16:01:13,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:13,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 16:01:13,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:01:13,950 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand 18 states. [2020-09-24 16:01:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:15,307 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2020-09-24 16:01:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 16:01:15,307 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 70 [2020-09-24 16:01:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:15,309 INFO L225 Difference]: With dead ends: 94 [2020-09-24 16:01:15,309 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 16:01:15,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 16:01:15,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 16:01:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2020-09-24 16:01:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-24 16:01:15,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2020-09-24 16:01:15,332 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 70 [2020-09-24 16:01:15,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:15,333 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2020-09-24 16:01:15,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 16:01:15,333 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2020-09-24 16:01:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-24 16:01:15,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:15,335 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:15,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:01:15,335 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:15,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-24 16:01:15,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:15,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493776927] [2020-09-24 16:01:15,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 16:01:15,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 16:01:15,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 16:01:15,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:01:15,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 16:01:15,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:15,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:15,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:15,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:15,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:15,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:15,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:01:15,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:15,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 16:01:15,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:15,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,789 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:15,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:01:15,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:15,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:15,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:15,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:15,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:01:15,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:01:15,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493776927] [2020-09-24 16:01:15,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:15,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 16:01:15,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48881785] [2020-09-24 16:01:15,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 16:01:15,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:15,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 16:01:15,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-24 16:01:15,977 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand 23 states. [2020-09-24 16:01:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:17,431 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2020-09-24 16:01:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:17,434 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-24 16:01:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:17,437 INFO L225 Difference]: With dead ends: 101 [2020-09-24 16:01:17,437 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 16:01:17,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 16:01:17,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 16:01:17,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 81. [2020-09-24 16:01:17,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 16:01:17,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2020-09-24 16:01:17,450 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 71 [2020-09-24 16:01:17,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:17,451 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2020-09-24 16:01:17,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 16:01:17,451 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2020-09-24 16:01:17,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 16:01:17,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:17,452 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:17,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:01:17,453 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:17,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:17,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-24 16:01:17,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:17,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038415711] [2020-09-24 16:01:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 16:01:17,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 16:01:17,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 16:01:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:01:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 16:01:17,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:17,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:17,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:17,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:17,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:17,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,749 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,749 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:17,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:17,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:17,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:17,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:17,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:17,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:17,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:17,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 16:01:17,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:17,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:17,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:17,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:17,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:17,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:01:17,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:17,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:18,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:18,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:18,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:18,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:18,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:18,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:18,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 16:01:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:18,083 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:18,083 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:18,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:18,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:18,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:18,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:18,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:18,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:18,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 16:01:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:18,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:18,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:18,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:18,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:18,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:01:18,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:18,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:18,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:18,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:01:18,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 16:01:18,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038415711] [2020-09-24 16:01:18,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:18,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 16:01:18,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640209774] [2020-09-24 16:01:18,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 16:01:18,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:18,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 16:01:18,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-24 16:01:18,213 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand 24 states. [2020-09-24 16:01:19,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:19,545 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2020-09-24 16:01:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:19,546 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-24 16:01:19,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:19,548 INFO L225 Difference]: With dead ends: 93 [2020-09-24 16:01:19,548 INFO L226 Difference]: Without dead ends: 86 [2020-09-24 16:01:19,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-09-24 16:01:19,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-24 16:01:19,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-24 16:01:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-24 16:01:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2020-09-24 16:01:19,563 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 85 [2020-09-24 16:01:19,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:19,563 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2020-09-24 16:01:19,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 16:01:19,563 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2020-09-24 16:01:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 16:01:19,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:19,565 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:19,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:01:19,565 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:19,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:19,566 INFO L82 PathProgramCache]: Analyzing trace with hash 571953633, now seen corresponding path program 2 times [2020-09-24 16:01:19,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:19,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100018624] [2020-09-24 16:01:19,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 16:01:19,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 16:01:19,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:01:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 16:01:19,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 16:01:19,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:19,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:19,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:19,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:19,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:19,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:19,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:19,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:19,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:19,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:19,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:19,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:19,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:19,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:19,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:19,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:19,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:19,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:19,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:19,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:19,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:19,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:19,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:19,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:19,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:19,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:19,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:19,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:19,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-24 16:01:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:19,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:19,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:19,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:19,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:01:19,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 16:01:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:01:19,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:01:19,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:01:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:19,858 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-24 16:01:19,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100018624] [2020-09-24 16:01:19,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:19,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 16:01:19,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922941872] [2020-09-24 16:01:19,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:01:19,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:19,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:01:19,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:01:19,861 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 10 states. [2020-09-24 16:01:20,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:20,435 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2020-09-24 16:01:20,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:01:20,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-24 16:01:20,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:20,438 INFO L225 Difference]: With dead ends: 93 [2020-09-24 16:01:20,438 INFO L226 Difference]: Without dead ends: 84 [2020-09-24 16:01:20,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:01:20,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-24 16:01:20,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2020-09-24 16:01:20,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 16:01:20,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 84 transitions. [2020-09-24 16:01:20,449 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 84 transitions. Word has length 85 [2020-09-24 16:01:20,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:20,449 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 84 transitions. [2020-09-24 16:01:20,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:01:20,450 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 84 transitions. [2020-09-24 16:01:20,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 16:01:20,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:20,451 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:20,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:01:20,452 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:20,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:20,452 INFO L82 PathProgramCache]: Analyzing trace with hash 578402155, now seen corresponding path program 1 times [2020-09-24 16:01:20,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:20,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923585374] [2020-09-24 16:01:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,563 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 16:01:20,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 16:01:20,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 16:01:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:01:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 16:01:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:20,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:20,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:20,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:20,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:20,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:20,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:20,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:20,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:20,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:20,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,749 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:20,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:01:20,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:20,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:01:20,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:20,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:20,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,892 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,892 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,892 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:20,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:20,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:20,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 16:01:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:20,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:20,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:20,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:20,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 16:01:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:01:20,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:20,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:20,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:20,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:20,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 16:01:21,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923585374] [2020-09-24 16:01:21,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:21,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 16:01:21,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951839146] [2020-09-24 16:01:21,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 16:01:21,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:21,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 16:01:21,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-24 16:01:21,021 INFO L87 Difference]: Start difference. First operand 81 states and 84 transitions. Second operand 23 states. [2020-09-24 16:01:22,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:22,423 INFO L93 Difference]: Finished difference Result 91 states and 94 transitions. [2020-09-24 16:01:22,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:22,430 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 86 [2020-09-24 16:01:22,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:22,431 INFO L225 Difference]: With dead ends: 91 [2020-09-24 16:01:22,431 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 16:01:22,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=1700, Unknown=0, NotChecked=0, Total=1892 [2020-09-24 16:01:22,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 16:01:22,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 16:01:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 16:01:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2020-09-24 16:01:22,444 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 86 [2020-09-24 16:01:22,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:22,445 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2020-09-24 16:01:22,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 16:01:22,445 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2020-09-24 16:01:22,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 16:01:22,447 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:22,450 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:01:22,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:01:22,450 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:22,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:22,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1773366491, now seen corresponding path program 2 times [2020-09-24 16:01:22,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:22,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807592535] [2020-09-24 16:01:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 16:01:22,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 16:01:22,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 16:01:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:01:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 16:01:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:22,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,703 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:22,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:22,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:01:22,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:22,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,740 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,740 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:22,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:01:22,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:22,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:22,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:22,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:22,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:22,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:01:22,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:22,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:22,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:22,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:01:22,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:22,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:22,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:22,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:22,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:22,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:01:22,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:22,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:22,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:22,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:22,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:22,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:01:22,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:22,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-24 16:01:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:22,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:22,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:22,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:22,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:22,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 16:01:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:22,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:22,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:22,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:22,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:22,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:01:22,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:22,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:22,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:01:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,017 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-24 16:01:23,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807592535] [2020-09-24 16:01:23,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:23,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 16:01:23,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016787768] [2020-09-24 16:01:23,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 16:01:23,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:23,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 16:01:23,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:01:23,020 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 19 states. [2020-09-24 16:01:24,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:24,414 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-24 16:01:24,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:24,415 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2020-09-24 16:01:24,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:24,415 INFO L225 Difference]: With dead ends: 76 [2020-09-24 16:01:24,415 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:01:24,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=1473, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 16:01:24,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:01:24,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:01:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:01:24,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:01:24,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2020-09-24 16:01:24,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:24,418 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:01:24,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 16:01:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:01:24,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:01:24,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:01:24,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:01:25,500 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 29 [2020-09-24 16:01:25,872 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-09-24 16:01:25,937 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-09-24 16:01:25,938 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|))) [2020-09-24 16:01:25,938 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-09-24 16:01:25,938 INFO L268 CegarLoopResult]: For program point L879-2(line 879) no Hoare annotation was computed. [2020-09-24 16:01:25,938 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|))) [2020-09-24 16:01:25,939 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-09-24 16:01:25,939 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 16:01:25,939 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 16:01:25,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 900) no Hoare annotation was computed. [2020-09-24 16:01:25,941 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|)) [2020-09-24 16:01:25,942 INFO L268 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-09-24 16:01:25,942 INFO L268 CegarLoopResult]: For program point L900(line 900) no Hoare annotation was computed. [2020-09-24 16:01:25,942 INFO L268 CegarLoopResult]: For program point L867(line 867) no Hoare annotation was computed. [2020-09-24 16:01:25,942 INFO L268 CegarLoopResult]: For program point L900-1(line 900) no Hoare annotation was computed. [2020-09-24 16:01:25,942 INFO L268 CegarLoopResult]: For program point L900-2(line 900) no Hoare annotation was computed. [2020-09-24 16:01:25,943 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:01:25,943 INFO L268 CegarLoopResult]: For program point L897(line 897) no Hoare annotation was computed. [2020-09-24 16:01:25,943 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-09-24 16:01:25,944 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-09-24 16:01:25,944 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-09-24 16:01:25,945 INFO L264 CegarLoopResult]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (or (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (<= 0 ~guard_malloc_counter~0.offset))) [2020-09-24 16:01:25,945 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|) (not (<= 0 ~guard_malloc_counter~0.offset))) [2020-09-24 16:01:25,945 INFO L268 CegarLoopResult]: For program point L892(line 892) no Hoare annotation was computed. [2020-09-24 16:01:25,945 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-09-24 16:01:25,945 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-09-24 16:01:25,946 INFO L268 CegarLoopResult]: For program point L891-1(line 891) no Hoare annotation was computed. [2020-09-24 16:01:25,946 INFO L268 CegarLoopResult]: For program point L889(lines 889 893) no Hoare annotation was computed. [2020-09-24 16:01:25,946 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (or (= |old(~elem~0.offset)| |list_add_#in~new.offset|) (not (<= 0 ~guard_malloc_counter~0.offset))) [2020-09-24 16:01:25,946 INFO L268 CegarLoopResult]: For program point L891-3(line 891) no Hoare annotation was computed. [2020-09-24 16:01:25,946 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-09-24 16:01:25,947 INFO L268 CegarLoopResult]: For program point L891-4(lines 889 893) no Hoare annotation was computed. [2020-09-24 16:01:25,947 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-09-24 16:01:25,947 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-24 16:01:25,947 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-24 16:01:25,947 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-24 16:01:25,948 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-09-24 16:01:25,948 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:01:25,948 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)) [2020-09-24 16:01:25,948 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 16:01:25,948 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 16:01:25,949 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (<= 0 |old(~elem~0.offset)|)) (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)) (not (<= |old(~elem~0.offset)| |old(~guard_malloc_counter~0.offset)|))) [2020-09-24 16:01:25,949 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-09-24 16:01:25,952 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 (<= 0 |old(~elem~0.offset)|)) (and (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) (not (= main_~dev2~0.offset main_~dev1~0.offset)) .cse0) (not (<= |old(~elem~0.offset)| |old(~guard_malloc_counter~0.offset)|)))) [2020-09-24 16:01:25,952 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-09-24 16:01:25,953 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (let ((.cse0 (not (= main_~dev2~0.offset ~elem~0.offset)))) (let ((.cse1 (not (= main_~dev2~0.offset main_~dev1~0.offset))) (.cse2 (let ((.cse3 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse4 (<= 0 ~guard_malloc_counter~0.offset))) (or (and .cse3 (= main_~dev2~0.base ~elem~0.base) .cse4) (and .cse3 .cse0 .cse4))))) (or (and (= ~elem~0.offset 0) .cse0 (<= 1 ~guard_malloc_counter~0.offset)) (and .cse1 .cse0 .cse2) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (<= 0 |old(~elem~0.offset)|)) (and (not (= main_~dev2~0.offset 0)) .cse1 .cse2) (not (<= |old(~elem~0.offset)| |old(~guard_malloc_counter~0.offset)|))))) [2020-09-24 16:01:25,953 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (not (= main_~dev1~0.offset ~elem~0.offset)) (= ~elem~0.offset 0) (not (= main_~dev2~0.offset ~elem~0.offset)) (= |old(~elem~0.base)| ~elem~0.base) (<= 1 ~guard_malloc_counter~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (<= 0 |old(~elem~0.offset)|)) (not (<= |old(~elem~0.offset)| |old(~guard_malloc_counter~0.offset)|))) [2020-09-24 16:01:25,953 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-09-24 16:01:25,953 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 (and (not (= main_~dev2~0.offset 0)) .cse0 (= main_~dev2~0.base ~elem~0.base) .cse1 .cse2) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (<= 0 |old(~elem~0.offset)|)) (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) (not (<= |old(~elem~0.offset)| |old(~guard_malloc_counter~0.offset)|)))) [2020-09-24 16:01:25,954 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 (<= 0 |old(~elem~0.offset)|)) (not (<= |old(~elem~0.offset)| |old(~guard_malloc_counter~0.offset)|))) [2020-09-24 16:01:25,954 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-09-24 16:01:25,954 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (<= 0 |old(~elem~0.offset)|)) (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)) (not (<= |old(~elem~0.offset)| |old(~guard_malloc_counter~0.offset)|))) [2020-09-24 16:01:25,954 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-09-24 16:01:25,955 INFO L268 CegarLoopResult]: For program point L903(line 903) no Hoare annotation was computed. [2020-09-24 16:01:25,955 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-09-24 16:01:25,955 INFO L268 CegarLoopResult]: For program point L905-2(line 905) no Hoare annotation was computed. [2020-09-24 16:01:25,955 INFO L268 CegarLoopResult]: For program point L904-2(line 904) no Hoare annotation was computed. [2020-09-24 16:01:25,956 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~elem~0.offset))) (.cse1 (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|)) (.cse2 (not (<= 8 |__getMemory_#in~size|)))) (and (or .cse0 (and .cse1 (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (<= 1 |old(~guard_malloc_counter~0.offset)|)) .cse2 (not (<= ~elem~0.offset 0))) (or .cse0 (and .cse1 (= ~guard_malloc_counter~0.offset 0)) .cse2 (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (<= ~elem~0.offset |old(~guard_malloc_counter~0.offset)|))))) [2020-09-24 16:01:25,956 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-09-24 16:01:25,956 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-09-24 16:01:25,956 INFO L268 CegarLoopResult]: For program point L875(line 875) no Hoare annotation was computed. [2020-09-24 16:01:25,956 INFO L268 CegarLoopResult]: For program point L874(line 874) no Hoare annotation was computed. [2020-09-24 16:01:25,957 INFO L268 CegarLoopResult]: For program point L873(line 873) no Hoare annotation was computed. [2020-09-24 16:01:25,957 INFO L268 CegarLoopResult]: For program point L872(line 872) no Hoare annotation was computed. [2020-09-24 16:01:25,957 INFO L268 CegarLoopResult]: For program point L873-1(lines 873 874) no Hoare annotation was computed. [2020-09-24 16:01:25,957 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-09-24 16:01:25,957 INFO L268 CegarLoopResult]: For program point L872-1(line 872) no Hoare annotation was computed. [2020-09-24 16:01:25,957 INFO L268 CegarLoopResult]: For program point L873-2(line 873) no Hoare annotation was computed. [2020-09-24 16:01:25,958 INFO L268 CegarLoopResult]: For program point L873-3(line 873) no Hoare annotation was computed. [2020-09-24 16:01:25,958 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (<= 0 ~elem~0.offset)) (not (<= 8 |__getMemory_#in~size|)) (not (<= ~elem~0.offset 0)) (not (<= ~elem~0.offset |old(~guard_malloc_counter~0.offset)|))) [2020-09-24 16:01:25,958 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-09-24 16:01:25,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:01:25 BoogieIcfgContainer [2020-09-24 16:01:25,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:01:25,980 INFO L168 Benchmark]: Toolchain (without parser) took 18877.63 ms. Allocated memory was 138.4 MB in the beginning and 418.4 MB in the end (delta: 280.0 MB). Free memory was 99.8 MB in the beginning and 181.8 MB in the end (delta: -81.9 MB). Peak memory consumption was 198.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:25,981 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:01:25,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.62 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 166.3 MB in the end (delta: -67.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:25,989 INFO L168 Benchmark]: Boogie Preprocessor took 74.47 ms. Allocated memory is still 200.8 MB. Free memory was 166.3 MB in the beginning and 163.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:25,990 INFO L168 Benchmark]: RCFGBuilder took 673.36 ms. Allocated memory is still 200.8 MB. Free memory was 163.5 MB in the beginning and 116.7 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:25,991 INFO L168 Benchmark]: TraceAbstraction took 17401.49 ms. Allocated memory was 200.8 MB in the beginning and 418.4 MB in the end (delta: 217.6 MB). Free memory was 116.1 MB in the beginning and 181.8 MB in the end (delta: -65.7 MB). Peak memory consumption was 151.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:26,001 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.62 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 166.3 MB in the end (delta: -67.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.47 ms. Allocated memory is still 200.8 MB. Free memory was 166.3 MB in the beginning and 163.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 673.36 ms. Allocated memory is still 200.8 MB. Free memory was 163.5 MB in the beginning and 116.7 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17401.49 ms. Allocated memory was 200.8 MB in the beginning and 418.4 MB in the end (delta: 217.6 MB). Free memory was 116.1 MB in the beginning and 181.8 MB in the end (delta: -65.7 MB). Peak memory consumption was 151.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 1113 SDslu, 2096 SDs, 0 SdLazy, 5667 SolverSat, 443 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 401 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred 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, 48 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 75 PreInvPairs, 86 NumberOfFragments, 473 HoareAnnotationTreeSize, 75 FomulaSimplifications, 834 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1580 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 687 NumberOfCodeBlocks, 687 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 677 ConstructedInterpolants, 0 QuantifiedInterpolants, 177909 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 135/209 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...