/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:26:56,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:26:56,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:26:56,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:26:56,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:26:56,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:26:56,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:26:56,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:26:56,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:26:56,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:26:56,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:26:56,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:26:56,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:26:56,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:26:56,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:26:56,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:26:56,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:26:56,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:26:56,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:26:56,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:26:56,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:26:56,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:26:56,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:26:56,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:26:56,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:26:56,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:26:56,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:26:56,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:26:56,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:26:56,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:26:56,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:26:56,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:26:56,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:26:56,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:26:56,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:26:56,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:26:56,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:26:56,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:26:56,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:26:56,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:26:56,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:26:56,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:26:56,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:26:56,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:26:56,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:26:56,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:26:56,646 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:26:56,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:26:56,646 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:26:56,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:26:56,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:26:56,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:26:56,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:26:56,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:26:56,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:26:56,648 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:26:56,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:26:56,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:26:56,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:26:56,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:26:56,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:26:56,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:26:56,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:26:56,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:26:56,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:26:56,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:26:56,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:26:56,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:26:56,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:26:56,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:26:56,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:26:56,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:26:57,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:26:57,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:26:57,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:26:57,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:26:57,104 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:26:57,106 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-21 12:26:57,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e396e76/39ff5bc6516749798e35f5783b769ebe/FLAG83ef4fd8e [2020-09-21 12:26:57,799 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:26:57,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-21 12:26:57,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e396e76/39ff5bc6516749798e35f5783b769ebe/FLAG83ef4fd8e [2020-09-21 12:26:58,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e396e76/39ff5bc6516749798e35f5783b769ebe [2020-09-21 12:26:58,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:26:58,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:26:58,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:26:58,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:26:58,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:26:58,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e8bb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58, skipping insertion in model container [2020-09-21 12:26:58,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:26:58,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:26:58,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:26:58,632 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:26:58,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:26:58,781 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:26:58,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58 WrapperNode [2020-09-21 12:26:58,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:26:58,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:26:58,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:26:58,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:26:58,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (1/1) ... [2020-09-21 12:26:58,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:26:58,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:26:58,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:26:58,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:26:58,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:26:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:26:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:26:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:26:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-21 12:26:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-21 12:26:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-21 12:26:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-21 12:26:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-21 12:26:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-21 12:26:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-21 12:26:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-21 12:26:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-21 12:26:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-21 12:26:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-21 12:26:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-21 12:26:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-21 12:26:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-21 12:26:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-21 12:26:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-21 12:26:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-21 12:26:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-21 12:26:58,963 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-21 12:26:58,963 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-21 12:26:58,963 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-21 12:26:58,964 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-21 12:26:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-21 12:26:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-21 12:26:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-21 12:26:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-21 12:26:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-21 12:26:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-21 12:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-21 12:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-21 12:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-21 12:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-21 12:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-21 12:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-21 12:26:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-21 12:26:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-21 12:26:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-21 12:26:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-21 12:26:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-21 12:26:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-21 12:26:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-21 12:26:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-21 12:26:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-21 12:26:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-21 12:26:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-21 12:26:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-21 12:26:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-21 12:26:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-21 12:26:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-21 12:26:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-21 12:26:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:26:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 12:26:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-21 12:26:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:26:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-21 12:26:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-21 12:26:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-21 12:26:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-21 12:26:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-21 12:26:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:26:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-21 12:26:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-21 12:26:58,975 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-21 12:26:58,975 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 12:26:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-21 12:26:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-21 12:26:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-21 12:26:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-21 12:26:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-21 12:26:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-21 12:26:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-21 12:26:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-21 12:26:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-21 12:26:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-21 12:26:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-21 12:26:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-21 12:26:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-21 12:26:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-21 12:26:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-21 12:26:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-21 12:26:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-21 12:26:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-21 12:26:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-21 12:26:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-21 12:26:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-21 12:26:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-21 12:26:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-21 12:26:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-21 12:26:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-21 12:26:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-21 12:26:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-21 12:26:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-21 12:26:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-21 12:26:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-21 12:26:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-21 12:26:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-21 12:26:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-21 12:26:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-21 12:26:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-21 12:26:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-21 12:26:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-21 12:26:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-21 12:26:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-21 12:26:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:26:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:26:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:26:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:26:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:26:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:26:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:26:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:26:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:26:59,693 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:26:59,693 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-21 12:26:59,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:26:59 BoogieIcfgContainer [2020-09-21 12:26:59,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:26:59,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:26:59,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:26:59,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:26:59,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:26:58" (1/3) ... [2020-09-21 12:26:59,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b0820c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:26:59, skipping insertion in model container [2020-09-21 12:26:59,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:58" (2/3) ... [2020-09-21 12:26:59,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b0820c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:26:59, skipping insertion in model container [2020-09-21 12:26:59,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:26:59" (3/3) ... [2020-09-21 12:26:59,717 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-09-21 12:26:59,732 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:26:59,747 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-21 12:26:59,772 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-21 12:26:59,816 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:26:59,816 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:26:59,817 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:26:59,817 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:26:59,818 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:26:59,818 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:26:59,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:26:59,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:26:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-09-21 12:26:59,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-21 12:26:59,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:26:59,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:26:59,876 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:26:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:26:59,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1861454184, now seen corresponding path program 1 times [2020-09-21 12:26:59,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:26:59,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094983697] [2020-09-21 12:26:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:00,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:00,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:00,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:27:00,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:00,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-21 12:27:00,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:00,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:27:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:27:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:27:00,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 27 [2020-09-21 12:27:00,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:00,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:00,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:00,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:00,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:27:00,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:00,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:00,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094983697] [2020-09-21 12:27:00,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:00,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:27:00,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007099891] [2020-09-21 12:27:00,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:27:00,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:00,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:27:00,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:00,357 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2020-09-21 12:27:00,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:00,664 INFO L93 Difference]: Finished difference Result 186 states and 302 transitions. [2020-09-21 12:27:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:27:00,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-09-21 12:27:00,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:00,680 INFO L225 Difference]: With dead ends: 186 [2020-09-21 12:27:00,680 INFO L226 Difference]: Without dead ends: 99 [2020-09-21 12:27:00,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:00,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-21 12:27:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2020-09-21 12:27:00,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-21 12:27:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2020-09-21 12:27:00,743 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 8 [2020-09-21 12:27:00,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:00,743 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2020-09-21 12:27:00,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:27:00,744 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2020-09-21 12:27:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:27:00,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:00,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:27:00,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:27:00,745 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:00,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1461031906, now seen corresponding path program 1 times [2020-09-21 12:27:00,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:00,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891530116] [2020-09-21 12:27:00,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:00,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:00,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:00,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:00,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:27:00,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:27:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-21 12:27:00,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:27:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:27:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:27:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:27:01,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:01,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:01,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:01,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:01,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:01,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:27:01,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:01,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:01,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:01,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:01,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:01,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891530116] [2020-09-21 12:27:01,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:01,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:27:01,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390198539] [2020-09-21 12:27:01,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:27:01,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:01,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:27:01,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:01,039 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 4 states. [2020-09-21 12:27:01,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:01,227 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2020-09-21 12:27:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:27:01,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-21 12:27:01,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:01,230 INFO L225 Difference]: With dead ends: 84 [2020-09-21 12:27:01,230 INFO L226 Difference]: Without dead ends: 82 [2020-09-21 12:27:01,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:01,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-21 12:27:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-21 12:27:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-21 12:27:01,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2020-09-21 12:27:01,243 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 14 [2020-09-21 12:27:01,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:01,244 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2020-09-21 12:27:01,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:27:01,244 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2020-09-21 12:27:01,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:27:01,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:01,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:27:01,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:27:01,246 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:01,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:01,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1461033828, now seen corresponding path program 1 times [2020-09-21 12:27:01,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:01,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771026467] [2020-09-21 12:27:01,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:01,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:01,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:01,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:01,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:27:01,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:27:01,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-21 12:27:01,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:01,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:27:01,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:27:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:27:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:01,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:01,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:01,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:01,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:01,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:01,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:27:01,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:01,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771026467] [2020-09-21 12:27:01,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:01,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:27:01,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320123554] [2020-09-21 12:27:01,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:27:01,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:01,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:27:01,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:27:01,497 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2020-09-21 12:27:01,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:01,698 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2020-09-21 12:27:01,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:27:01,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-21 12:27:01,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:01,701 INFO L225 Difference]: With dead ends: 83 [2020-09-21 12:27:01,701 INFO L226 Difference]: Without dead ends: 81 [2020-09-21 12:27:01,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:27:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-21 12:27:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2020-09-21 12:27:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-21 12:27:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2020-09-21 12:27:01,712 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 14 [2020-09-21 12:27:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:01,712 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2020-09-21 12:27:01,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:27:01,712 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2020-09-21 12:27:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-21 12:27:01,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:01,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:27:01,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:27:01,714 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:01,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:01,715 INFO L82 PathProgramCache]: Analyzing trace with hash 177734485, now seen corresponding path program 1 times [2020-09-21 12:27:01,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:01,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797796306] [2020-09-21 12:27:01,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:01,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:01,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:01,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:02,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:02,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:27:02,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:27:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-21 12:27:02,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:27:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 12:27:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:27:02,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:02,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:02,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:02,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:02,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:02,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:02,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:27:02,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:02,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:02,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:02,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:02,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:02,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797796306] [2020-09-21 12:27:02,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:02,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:27:02,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328675924] [2020-09-21 12:27:02,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:27:02,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:02,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:27:02,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:02,252 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand 4 states. [2020-09-21 12:27:02,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:02,431 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2020-09-21 12:27:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:27:02,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-09-21 12:27:02,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:02,433 INFO L225 Difference]: With dead ends: 82 [2020-09-21 12:27:02,433 INFO L226 Difference]: Without dead ends: 78 [2020-09-21 12:27:02,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-21 12:27:02,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2020-09-21 12:27:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-21 12:27:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2020-09-21 12:27:02,442 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 19 [2020-09-21 12:27:02,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:02,443 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2020-09-21 12:27:02,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:27:02,443 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2020-09-21 12:27:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 12:27:02,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:02,444 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] [2020-09-21 12:27:02,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:27:02,444 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:02,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:02,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1214805939, now seen corresponding path program 1 times [2020-09-21 12:27:02,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:02,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585062786] [2020-09-21 12:27:02,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:02,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:02,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:02,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:02,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:02,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:02,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:27:02,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:27:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-09-21 12:27:02,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:27:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:27:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:27:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:02,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:02,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:02,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:02,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:02,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:02,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:27:02,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:02,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:02,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585062786] [2020-09-21 12:27:02,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:02,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:27:02,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587697419] [2020-09-21 12:27:02,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:27:02,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:02,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:27:02,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:27:02,957 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand 5 states. [2020-09-21 12:27:03,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:03,169 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2020-09-21 12:27:03,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:27:03,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-09-21 12:27:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:03,173 INFO L225 Difference]: With dead ends: 93 [2020-09-21 12:27:03,173 INFO L226 Difference]: Without dead ends: 73 [2020-09-21 12:27:03,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:27:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-21 12:27:03,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2020-09-21 12:27:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-21 12:27:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2020-09-21 12:27:03,195 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 20 [2020-09-21 12:27:03,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:03,196 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2020-09-21 12:27:03,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:27:03,196 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2020-09-21 12:27:03,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-21 12:27:03,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:03,199 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, 1, 1, 1] [2020-09-21 12:27:03,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:27:03,200 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:03,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:03,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1924122782, now seen corresponding path program 1 times [2020-09-21 12:27:03,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:03,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815631795] [2020-09-21 12:27:03,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:03,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:03,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:03,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:03,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:03,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:03,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:03,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 12:27:03,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:27:03,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-21 12:27:03,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:03,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:27:03,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 12:27:03,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:27:03,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:03,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:03,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:03,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:03,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:03,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:03,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:27:03,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:03,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815631795] [2020-09-21 12:27:03,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:03,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:27:03,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652327361] [2020-09-21 12:27:03,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:27:03,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:03,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:27:03,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:03,645 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 4 states. [2020-09-21 12:27:03,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:03,805 INFO L93 Difference]: Finished difference Result 133 states and 151 transitions. [2020-09-21 12:27:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:27:03,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-09-21 12:27:03,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:03,810 INFO L225 Difference]: With dead ends: 133 [2020-09-21 12:27:03,810 INFO L226 Difference]: Without dead ends: 94 [2020-09-21 12:27:03,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-21 12:27:03,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 75. [2020-09-21 12:27:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-21 12:27:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2020-09-21 12:27:03,824 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 24 [2020-09-21 12:27:03,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:03,826 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2020-09-21 12:27:03,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:27:03,826 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2020-09-21 12:27:03,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-21 12:27:03,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:03,830 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, 1, 1, 1, 1] [2020-09-21 12:27:03,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:27:03,830 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:03,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:03,831 INFO L82 PathProgramCache]: Analyzing trace with hash -481740404, now seen corresponding path program 1 times [2020-09-21 12:27:03,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:03,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117998212] [2020-09-21 12:27:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:03,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:03,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:03,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:04,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:04,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:04,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:04,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:04,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 12:27:04,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:27:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-21 12:27:04,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:27:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 12:27:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:27:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:04,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:04,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:04,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:04,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:04,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:04,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:27:04,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:04,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117998212] [2020-09-21 12:27:04,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:04,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:27:04,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566386040] [2020-09-21 12:27:04,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:27:04,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:04,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:27:04,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:04,506 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 4 states. [2020-09-21 12:27:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:04,638 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2020-09-21 12:27:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:27:04,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-09-21 12:27:04,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:04,640 INFO L225 Difference]: With dead ends: 75 [2020-09-21 12:27:04,640 INFO L226 Difference]: Without dead ends: 73 [2020-09-21 12:27:04,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:04,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-21 12:27:04,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-21 12:27:04,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-21 12:27:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2020-09-21 12:27:04,658 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 25 [2020-09-21 12:27:04,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:04,658 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2020-09-21 12:27:04,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:27:04,659 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2020-09-21 12:27:04,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 12:27:04,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:04,661 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, 1, 1, 1, 1, 1, 1] [2020-09-21 12:27:04,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:27:04,662 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:04,662 INFO L82 PathProgramCache]: Analyzing trace with hash -611625627, now seen corresponding path program 1 times [2020-09-21 12:27:04,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:04,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619826578] [2020-09-21 12:27:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:04,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:04,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:04,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:05,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:05,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:05,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:27:05,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:27:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-09-21 12:27:05,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:27:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:27:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:27:05,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:05,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:05,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:05,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:05,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:05,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:05,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:27:05,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:05,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619826578] [2020-09-21 12:27:05,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:05,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:27:05,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670495877] [2020-09-21 12:27:05,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:27:05,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:05,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:27:05,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:27:05,417 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand 5 states. [2020-09-21 12:27:05,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:05,618 INFO L93 Difference]: Finished difference Result 185 states and 210 transitions. [2020-09-21 12:27:05,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:27:05,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-09-21 12:27:05,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:05,620 INFO L225 Difference]: With dead ends: 185 [2020-09-21 12:27:05,620 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 12:27:05,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:27:05,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 12:27:05,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 75. [2020-09-21 12:27:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-21 12:27:05,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2020-09-21 12:27:05,631 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 27 [2020-09-21 12:27:05,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:05,633 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2020-09-21 12:27:05,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:27:05,634 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2020-09-21 12:27:05,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 12:27:05,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:05,641 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, 1, 1, 1, 1, 1, 1] [2020-09-21 12:27:05,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:27:05,641 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:05,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:05,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1632693981, now seen corresponding path program 1 times [2020-09-21 12:27:05,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:05,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006086457] [2020-09-21 12:27:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:05,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:05,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:05,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:05,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:27:05,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:27:05,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-21 12:27:05,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:05,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:27:05,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 12:27:05,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:27:05,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:05,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:05,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:05,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:05,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:05,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:05,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:27:05,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:05,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:05,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:05,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006086457] [2020-09-21 12:27:05,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:05,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:27:05,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110670070] [2020-09-21 12:27:05,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:27:05,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:05,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:27:05,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:27:05,916 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 5 states. [2020-09-21 12:27:06,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:06,082 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2020-09-21 12:27:06,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:27:06,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-09-21 12:27:06,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:06,083 INFO L225 Difference]: With dead ends: 76 [2020-09-21 12:27:06,083 INFO L226 Difference]: Without dead ends: 74 [2020-09-21 12:27:06,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:27:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-21 12:27:06,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-09-21 12:27:06,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-21 12:27:06,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2020-09-21 12:27:06,100 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 27 [2020-09-21 12:27:06,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:06,101 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2020-09-21 12:27:06,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:27:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2020-09-21 12:27:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-21 12:27:06,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:06,104 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:27:06,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:27:06,104 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:06,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:06,105 INFO L82 PathProgramCache]: Analyzing trace with hash 668074133, now seen corresponding path program 1 times [2020-09-21 12:27:06,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:06,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361988124] [2020-09-21 12:27:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:06,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:06,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:06,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:06,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:06,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:06,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:07,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:07,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 12:27:07,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:27:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-09-21 12:27:07,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:27:07,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:27:07,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:27:07,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:07,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:07,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:07,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:07,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:07,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:27:07,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:07,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:07,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361988124] [2020-09-21 12:27:07,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:07,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:27:07,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383148343] [2020-09-21 12:27:07,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:27:07,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:07,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:27:07,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:27:07,092 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand 6 states. [2020-09-21 12:27:07,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:07,536 INFO L93 Difference]: Finished difference Result 173 states and 197 transitions. [2020-09-21 12:27:07,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:27:07,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-09-21 12:27:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:07,539 INFO L225 Difference]: With dead ends: 173 [2020-09-21 12:27:07,539 INFO L226 Difference]: Without dead ends: 133 [2020-09-21 12:27:07,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:27:07,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-21 12:27:07,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 83. [2020-09-21 12:27:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-21 12:27:07,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2020-09-21 12:27:07,559 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 28 [2020-09-21 12:27:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:07,560 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2020-09-21 12:27:07,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:27:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2020-09-21 12:27:07,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-21 12:27:07,561 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:07,562 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:27:07,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:27:07,562 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:07,563 INFO L82 PathProgramCache]: Analyzing trace with hash 567478293, now seen corresponding path program 1 times [2020-09-21 12:27:07,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:07,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170175013] [2020-09-21 12:27:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:07,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:07,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:08,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:08,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:08,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:08,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 12:27:08,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:27:08,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:27:08,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:08,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:27:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:27:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:27:08,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:08,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:08,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:08,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:08,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:08,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:27:08,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:08,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170175013] [2020-09-21 12:27:08,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:08,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:27:08,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497153737] [2020-09-21 12:27:08,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:27:08,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:08,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:27:08,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:27:08,808 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand 8 states. [2020-09-21 12:27:09,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:09,549 INFO L93 Difference]: Finished difference Result 218 states and 242 transitions. [2020-09-21 12:27:09,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:27:09,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-09-21 12:27:09,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:09,558 INFO L225 Difference]: With dead ends: 218 [2020-09-21 12:27:09,559 INFO L226 Difference]: Without dead ends: 216 [2020-09-21 12:27:09,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:27:09,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-09-21 12:27:09,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 95. [2020-09-21 12:27:09,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-21 12:27:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2020-09-21 12:27:09,573 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 28 [2020-09-21 12:27:09,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:09,575 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2020-09-21 12:27:09,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:27:09,575 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2020-09-21 12:27:09,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-21 12:27:09,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:09,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:27:09,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:27:09,580 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:09,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:09,580 INFO L82 PathProgramCache]: Analyzing trace with hash 758661948, now seen corresponding path program 1 times [2020-09-21 12:27:09,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:09,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925555687] [2020-09-21 12:27:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:27:09,602 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:27:09,602 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:27:09,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:27:09,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:27:09 BoogieIcfgContainer [2020-09-21 12:27:09,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:27:09,662 INFO L168 Benchmark]: Toolchain (without parser) took 11602.55 ms. Allocated memory was 140.5 MB in the beginning and 309.3 MB in the end (delta: 168.8 MB). Free memory was 102.5 MB in the beginning and 232.0 MB in the end (delta: -129.5 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:09,665 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:27:09,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.22 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 171.3 MB in the end (delta: -69.4 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:09,670 INFO L168 Benchmark]: Boogie Preprocessor took 88.49 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 167.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:09,670 INFO L168 Benchmark]: RCFGBuilder took 831.40 ms. Allocated memory is still 204.5 MB. Free memory was 167.3 MB in the beginning and 112.0 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:09,672 INFO L168 Benchmark]: TraceAbstraction took 9953.30 ms. Allocated memory was 204.5 MB in the beginning and 309.3 MB in the end (delta: 104.9 MB). Free memory was 111.3 MB in the beginning and 232.0 MB in the end (delta: -120.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:27:09,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.22 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 171.3 MB in the end (delta: -69.4 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.49 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 167.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 831.40 ms. Allocated memory is still 204.5 MB. Free memory was 167.3 MB in the beginning and 112.0 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9953.30 ms. Allocated memory was 204.5 MB in the beginning and 309.3 MB in the end (delta: 104.9 MB). Free memory was 111.3 MB in the beginning and 232.0 MB in the end (delta: -120.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 88 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.8s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 822 SDtfs, 632 SDslu, 1053 SDs, 0 SdLazy, 1462 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=11, 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, 11 MinimizatonAttempts, 264 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 265 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 34067 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...