/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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-c90d42b [2020-09-24 17:08:28,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:08:28,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:08:29,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:08:29,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:08:29,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:08:29,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:08:29,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:08:29,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:08:29,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:08:29,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:08:29,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:08:29,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:08:29,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:08:29,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:08:29,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:08:29,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:08:29,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:08:29,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:08:29,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:08:29,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:08:29,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:08:29,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:08:29,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:08:29,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:08:29,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:08:29,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:08:29,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:08:29,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:08:29,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:08:29,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:08:29,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:08:29,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:08:29,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:08:29,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:08:29,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:08:29,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:08:29,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:08:29,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:08:29,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:08:29,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:08:29,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:08:29,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:08:29,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:08:29,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:08:29,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:08:29,114 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:08:29,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:08:29,115 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:08:29,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:08:29,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:08:29,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:08:29,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:08:29,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:08:29,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:08:29,116 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:08:29,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:08:29,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:08:29,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:08:29,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:08:29,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:08:29,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:08:29,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:08:29,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:08:29,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:08:29,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:08:29,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:08:29,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:08:29,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:08:29,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:08:29,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:08:29,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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;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;log-additional-information=true; [2020-09-24 17:08:29,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:08:29,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:08:29,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:08:29,599 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:08:29,600 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:08:29,602 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-24 17:08:29,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ed7ba21c/46608f5beca64377ac2e62139cb31236/FLAG5c002eda8 [2020-09-24 17:08:30,299 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:08:30,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-24 17:08:30,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ed7ba21c/46608f5beca64377ac2e62139cb31236/FLAG5c002eda8 [2020-09-24 17:08:30,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ed7ba21c/46608f5beca64377ac2e62139cb31236 [2020-09-24 17:08:30,538 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:08:30,543 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:08:30,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:08:30,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:08:30,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:08:30,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:08:30" (1/1) ... [2020-09-24 17:08:30,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a94298b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:30, skipping insertion in model container [2020-09-24 17:08:30,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:08:30" (1/1) ... [2020-09-24 17:08:30,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:08:30,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:08:31,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:08:31,068 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:08:31,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:08:31,195 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:08:31,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31 WrapperNode [2020-09-24 17:08:31,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:08:31,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:08:31,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:08:31,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:08:31,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (1/1) ... [2020-09-24 17:08:31,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (1/1) ... [2020-09-24 17:08:31,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (1/1) ... [2020-09-24 17:08:31,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (1/1) ... [2020-09-24 17:08:31,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (1/1) ... [2020-09-24 17:08:31,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (1/1) ... [2020-09-24 17:08:31,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (1/1) ... [2020-09-24 17:08:31,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:08:31,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:08:31,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:08:31,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:08:31,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:08:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:08:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:08:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:08:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 17:08:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 17:08:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 17:08:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 17:08:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 17:08:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 17:08:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 17:08:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 17:08:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 17:08:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 17:08:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 17:08:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 17:08:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 17:08:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 17:08:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 17:08:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 17:08:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 17:08:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 17:08:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 17:08:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 17:08:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 17:08:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 17:08:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 17:08:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 17:08:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 17:08:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 17:08:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 17:08:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 17:08:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 17:08:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 17:08:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 17:08:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 17:08:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 17:08:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 17:08:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 17:08:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 17:08:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 17:08:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 17:08:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 17:08:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 17:08:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 17:08:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 17:08:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 17:08:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 17:08:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 17:08:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 17:08:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 17:08:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 17:08:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 17:08:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 17:08:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:08:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 17:08:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 17:08:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:08:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 17:08:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 17:08:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 17:08:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 17:08:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-24 17:08:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:08:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 17:08:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-24 17:08:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 17:08:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 17:08:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-24 17:08:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 17:08:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 17:08:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 17:08:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 17:08:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 17:08:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 17:08:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 17:08:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 17:08:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 17:08:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 17:08:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 17:08:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 17:08:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 17:08:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 17:08:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 17:08:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 17:08:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 17:08:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 17:08:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 17:08:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 17:08:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 17:08:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 17:08:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 17:08:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 17:08:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 17:08:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 17:08:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 17:08:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 17:08:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 17:08:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 17:08:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 17:08:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 17:08:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 17:08:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 17:08:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 17:08:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 17:08:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 17:08:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 17:08:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:08:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:08:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:08:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:08:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:08:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:08:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:08:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:08:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:08:32,154 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:08:32,155 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-24 17:08:32,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:08:32 BoogieIcfgContainer [2020-09-24 17:08:32,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:08:32,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:08:32,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:08:32,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:08:32,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:08:30" (1/3) ... [2020-09-24 17:08:32,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d98de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:08:32, skipping insertion in model container [2020-09-24 17:08:32,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:31" (2/3) ... [2020-09-24 17:08:32,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d98de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:08:32, skipping insertion in model container [2020-09-24 17:08:32,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:08:32" (3/3) ... [2020-09-24 17:08:32,172 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-09-24 17:08:32,184 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:08:32,195 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-24 17:08:32,219 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-24 17:08:32,250 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:08:32,250 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:08:32,250 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:08:32,250 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:08:32,250 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:08:32,250 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:08:32,251 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:08:32,251 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:08:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-24 17:08:32,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-24 17:08:32,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:32,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:32,292 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]=== [2020-09-24 17:08:32,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:32,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1409190174, now seen corresponding path program 1 times [2020-09-24 17:08:32,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:32,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778674125] [2020-09-24 17:08:32,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:32,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:32,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:32,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 17:08:32,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:32,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-24 17:08:32,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:32,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:08:32,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 17:08:32,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:08:32,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:08:32,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:32,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:32,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:32,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:32,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 17:08:32,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:32,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778674125] [2020-09-24 17:08:32,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:32,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:08:32,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66782266] [2020-09-24 17:08:32,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:08:32,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:32,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:08:32,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:08:32,930 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-24 17:08:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:33,372 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2020-09-24 17:08:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:08:33,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-24 17:08:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:33,389 INFO L225 Difference]: With dead ends: 359 [2020-09-24 17:08:33,390 INFO L226 Difference]: Without dead ends: 194 [2020-09-24 17:08:33,395 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 [2020-09-24 17:08:33,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-24 17:08:33,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-24 17:08:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-24 17:08:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2020-09-24 17:08:33,478 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 13 [2020-09-24 17:08:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:33,478 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2020-09-24 17:08:33,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:08:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2020-09-24 17:08:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-24 17:08:33,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:33,480 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] [2020-09-24 17:08:33,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:08:33,481 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]=== [2020-09-24 17:08:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:33,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1469410252, now seen corresponding path program 1 times [2020-09-24 17:08:33,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:33,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070852445] [2020-09-24 17:08:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:33,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:33,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:33,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:33,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 17:08:33,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:08:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-24 17:08:33,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:08:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 17:08:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:08:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:33,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:33,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:33,869 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:33,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:33,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:33,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:08:33,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:33,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:33,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:33,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:08:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:33,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070852445] [2020-09-24 17:08:33,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:33,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:08:33,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638084642] [2020-09-24 17:08:33,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:08:33,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:33,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:08:33,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:08:33,889 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 6 states. [2020-09-24 17:08:34,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:34,350 INFO L93 Difference]: Finished difference Result 392 states and 414 transitions. [2020-09-24 17:08:34,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:08:34,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-24 17:08:34,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:34,353 INFO L225 Difference]: With dead ends: 392 [2020-09-24 17:08:34,353 INFO L226 Difference]: Without dead ends: 259 [2020-09-24 17:08:34,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:08:34,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-24 17:08:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 167. [2020-09-24 17:08:34,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-24 17:08:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 176 transitions. [2020-09-24 17:08:34,371 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 176 transitions. Word has length 25 [2020-09-24 17:08:34,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:34,372 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 176 transitions. [2020-09-24 17:08:34,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:08:34,372 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 176 transitions. [2020-09-24 17:08:34,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 17:08:34,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:34,374 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] [2020-09-24 17:08:34,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:08:34,374 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]=== [2020-09-24 17:08:34,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:34,375 INFO L82 PathProgramCache]: Analyzing trace with hash -155961871, now seen corresponding path program 1 times [2020-09-24 17:08:34,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:34,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285546580] [2020-09-24 17:08:34,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:34,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:34,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:34,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:34,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 17:08:34,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:08:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-09-24 17:08:34,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:08:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 17:08:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:08:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:34,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:34,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:34,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:34,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:34,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:34,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:08:34,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:34,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:34,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:34,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:34,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:34,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:34,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285546580] [2020-09-24 17:08:34,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:34,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:08:34,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939213157] [2020-09-24 17:08:34,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:08:34,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:34,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:08:34,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:08:34,887 INFO L87 Difference]: Start difference. First operand 167 states and 176 transitions. Second operand 6 states. [2020-09-24 17:08:35,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:35,269 INFO L93 Difference]: Finished difference Result 260 states and 275 transitions. [2020-09-24 17:08:35,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:08:35,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-24 17:08:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:35,272 INFO L225 Difference]: With dead ends: 260 [2020-09-24 17:08:35,272 INFO L226 Difference]: Without dead ends: 255 [2020-09-24 17:08:35,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:08:35,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-24 17:08:35,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 170. [2020-09-24 17:08:35,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-24 17:08:35,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 179 transitions. [2020-09-24 17:08:35,298 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 179 transitions. Word has length 27 [2020-09-24 17:08:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:35,299 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 179 transitions. [2020-09-24 17:08:35,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:08:35,299 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 179 transitions. [2020-09-24 17:08:35,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 17:08:35,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:35,300 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, 1, 1, 1] [2020-09-24 17:08:35,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:08:35,301 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]=== [2020-09-24 17:08:35,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:35,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1216115010, now seen corresponding path program 1 times [2020-09-24 17:08:35,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:35,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5348985] [2020-09-24 17:08:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:35,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:35,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:36,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:36,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:08:36,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:08:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1275 [2020-09-24 17:08:36,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:08:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 17:08:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:08:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:36,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:36,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:36,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:36,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:36,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:36,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:08:36,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:36,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:36,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5348985] [2020-09-24 17:08:36,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:36,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:08:36,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29238552] [2020-09-24 17:08:36,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:08:36,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:36,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:08:36,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:08:36,805 INFO L87 Difference]: Start difference. First operand 170 states and 179 transitions. Second operand 8 states. [2020-09-24 17:08:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:37,409 INFO L93 Difference]: Finished difference Result 255 states and 269 transitions. [2020-09-24 17:08:37,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 17:08:37,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-09-24 17:08:37,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:37,412 INFO L225 Difference]: With dead ends: 255 [2020-09-24 17:08:37,413 INFO L226 Difference]: Without dead ends: 250 [2020-09-24 17:08:37,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-09-24 17:08:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-24 17:08:37,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 162. [2020-09-24 17:08:37,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-24 17:08:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 171 transitions. [2020-09-24 17:08:37,438 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 171 transitions. Word has length 34 [2020-09-24 17:08:37,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:37,438 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 171 transitions. [2020-09-24 17:08:37,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:08:37,438 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 171 transitions. [2020-09-24 17:08:37,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 17:08:37,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:37,440 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, 1, 1, 1, 1] [2020-09-24 17:08:37,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:08:37,440 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]=== [2020-09-24 17:08:37,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:37,444 INFO L82 PathProgramCache]: Analyzing trace with hash -820684573, now seen corresponding path program 1 times [2020-09-24 17:08:37,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:37,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13418773] [2020-09-24 17:08:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:37,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:37,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:37,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:37,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 17:08:37,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:08:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-24 17:08:37,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:37,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:08:37,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 17:08:37,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 17:08:37,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:37,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:37,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:37,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:37,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:37,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:37,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:08:37,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:37,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:37,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:37,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:37,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:37,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13418773] [2020-09-24 17:08:37,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:37,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:08:37,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030341571] [2020-09-24 17:08:37,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:08:37,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:37,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:08:37,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:08:37,757 INFO L87 Difference]: Start difference. First operand 162 states and 171 transitions. Second operand 5 states. [2020-09-24 17:08:38,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:38,122 INFO L93 Difference]: Finished difference Result 192 states and 204 transitions. [2020-09-24 17:08:38,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:08:38,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-09-24 17:08:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:38,124 INFO L225 Difference]: With dead ends: 192 [2020-09-24 17:08:38,124 INFO L226 Difference]: Without dead ends: 158 [2020-09-24 17:08:38,125 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 [2020-09-24 17:08:38,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-24 17:08:38,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2020-09-24 17:08:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-24 17:08:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 166 transitions. [2020-09-24 17:08:38,135 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 166 transitions. Word has length 35 [2020-09-24 17:08:38,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:38,136 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 166 transitions. [2020-09-24 17:08:38,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:08:38,136 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 166 transitions. [2020-09-24 17:08:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 17:08:38,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:38,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:38,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:08:38,144 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]=== [2020-09-24 17:08:38,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:38,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2091807586, now seen corresponding path program 1 times [2020-09-24 17:08:38,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:38,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347792102] [2020-09-24 17:08:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:38,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:38,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:38,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:39,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:39,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 17:08:39,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:08:39,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1339 [2020-09-24 17:08:39,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:08:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 17:08:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:08:39,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:08:39,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:39,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:39,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:39,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:39,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:39,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:08:39,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:39,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:39,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:08:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:39,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347792102] [2020-09-24 17:08:39,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:39,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:08:39,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606308637] [2020-09-24 17:08:39,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:08:39,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:39,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:08:39,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:08:39,779 INFO L87 Difference]: Start difference. First operand 157 states and 166 transitions. Second operand 9 states. [2020-09-24 17:08:40,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:40,925 INFO L93 Difference]: Finished difference Result 238 states and 252 transitions. [2020-09-24 17:08:40,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 17:08:40,926 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-09-24 17:08:40,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:40,931 INFO L225 Difference]: With dead ends: 238 [2020-09-24 17:08:40,931 INFO L226 Difference]: Without dead ends: 236 [2020-09-24 17:08:40,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-09-24 17:08:40,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-09-24 17:08:40,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 155. [2020-09-24 17:08:40,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-24 17:08:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 164 transitions. [2020-09-24 17:08:40,945 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 164 transitions. Word has length 42 [2020-09-24 17:08:40,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:40,945 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 164 transitions. [2020-09-24 17:08:40,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:08:40,946 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 164 transitions. [2020-09-24 17:08:40,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 17:08:40,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:40,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:40,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:08:40,951 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]=== [2020-09-24 17:08:40,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:40,952 INFO L82 PathProgramCache]: Analyzing trace with hash 654436304, now seen corresponding path program 1 times [2020-09-24 17:08:40,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:40,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474680850] [2020-09-24 17:08:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:40,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:41,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:41,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 17:08:41,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 17:08:41,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:41,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:08:41,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 17:08:41,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:08:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:08:41,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:41,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:41,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:41,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:41,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:08:41,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:41,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:41,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:08:41,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:41,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474680850] [2020-09-24 17:08:41,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:41,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:08:41,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694123332] [2020-09-24 17:08:41,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:08:41,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:41,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:08:41,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:08:41,109 INFO L87 Difference]: Start difference. First operand 155 states and 164 transitions. Second operand 4 states. [2020-09-24 17:08:41,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:41,339 INFO L93 Difference]: Finished difference Result 195 states and 208 transitions. [2020-09-24 17:08:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 17:08:41,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-09-24 17:08:41,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:41,341 INFO L225 Difference]: With dead ends: 195 [2020-09-24 17:08:41,341 INFO L226 Difference]: Without dead ends: 193 [2020-09-24 17:08:41,342 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 [2020-09-24 17:08:41,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-24 17:08:41,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 157. [2020-09-24 17:08:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-24 17:08:41,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 167 transitions. [2020-09-24 17:08:41,350 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 167 transitions. Word has length 43 [2020-09-24 17:08:41,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:41,351 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 167 transitions. [2020-09-24 17:08:41,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:08:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 167 transitions. [2020-09-24 17:08:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 17:08:41,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:41,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:41,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:08:41,357 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]=== [2020-09-24 17:08:41,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:41,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1847672787, now seen corresponding path program 1 times [2020-09-24 17:08:41,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:41,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083627948] [2020-09-24 17:08:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:41,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:41,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:41,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:41,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:42,196 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:42,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 17:08:42,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:08:42,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-09-24 17:08:42,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:08:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:08:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:08:42,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:42,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:42,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:42,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:42,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:42,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:42,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:08:42,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:42,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:42,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:42,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:42,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:42,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083627948] [2020-09-24 17:08:42,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:42,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:08:42,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511634149] [2020-09-24 17:08:42,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:08:42,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:42,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:08:42,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:08:42,346 INFO L87 Difference]: Start difference. First operand 157 states and 167 transitions. Second operand 9 states. [2020-09-24 17:08:43,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:43,033 INFO L93 Difference]: Finished difference Result 344 states and 368 transitions. [2020-09-24 17:08:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 17:08:43,033 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-09-24 17:08:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:43,035 INFO L225 Difference]: With dead ends: 344 [2020-09-24 17:08:43,035 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 17:08:43,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:08:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 17:08:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 176. [2020-09-24 17:08:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-24 17:08:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 187 transitions. [2020-09-24 17:08:43,049 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 187 transitions. Word has length 45 [2020-09-24 17:08:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:43,050 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 187 transitions. [2020-09-24 17:08:43,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:08:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 187 transitions. [2020-09-24 17:08:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 17:08:43,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:43,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:43,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:08:43,052 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]=== [2020-09-24 17:08:43,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:43,053 INFO L82 PathProgramCache]: Analyzing trace with hash 797256871, now seen corresponding path program 1 times [2020-09-24 17:08:43,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:43,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621056575] [2020-09-24 17:08:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:43,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:43,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:43,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:43,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:44,951 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:44,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 17:08:44,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:08:44,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1880 [2020-09-24 17:08:44,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:08:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 17:08:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 17:08:44,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:45,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:45,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:45,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:45,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:45,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:45,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:08:45,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:45,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:45,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621056575] [2020-09-24 17:08:45,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:45,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:08:45,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96729001] [2020-09-24 17:08:45,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:08:45,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:45,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:08:45,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:08:45,078 INFO L87 Difference]: Start difference. First operand 176 states and 187 transitions. Second operand 9 states. [2020-09-24 17:08:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:45,751 INFO L93 Difference]: Finished difference Result 353 states and 381 transitions. [2020-09-24 17:08:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 17:08:45,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-09-24 17:08:45,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:45,754 INFO L225 Difference]: With dead ends: 353 [2020-09-24 17:08:45,755 INFO L226 Difference]: Without dead ends: 286 [2020-09-24 17:08:45,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:08:45,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-24 17:08:45,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 187. [2020-09-24 17:08:45,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-24 17:08:45,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 199 transitions. [2020-09-24 17:08:45,769 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 199 transitions. Word has length 50 [2020-09-24 17:08:45,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:45,770 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 199 transitions. [2020-09-24 17:08:45,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:08:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 199 transitions. [2020-09-24 17:08:45,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 17:08:45,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:45,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:45,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 17:08:45,772 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]=== [2020-09-24 17:08:45,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:45,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1643041774, now seen corresponding path program 1 times [2020-09-24 17:08:45,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:45,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024162719] [2020-09-24 17:08:45,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:45,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:46,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:46,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:46,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:48,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:48,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:48,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:08:48,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:08:48,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3106 [2020-09-24 17:08:48,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 17:08:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 17:08:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:08:48,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:49,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:49,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:49,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:49,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:49,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:49,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:08:49,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:08:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:49,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024162719] [2020-09-24 17:08:49,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:49,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:08:49,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890610096] [2020-09-24 17:08:49,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:08:49,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:49,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:08:49,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:08:49,205 INFO L87 Difference]: Start difference. First operand 187 states and 199 transitions. Second operand 10 states. [2020-09-24 17:08:50,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:50,441 INFO L93 Difference]: Finished difference Result 331 states and 353 transitions. [2020-09-24 17:08:50,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 17:08:50,442 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-24 17:08:50,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:50,444 INFO L225 Difference]: With dead ends: 331 [2020-09-24 17:08:50,444 INFO L226 Difference]: Without dead ends: 328 [2020-09-24 17:08:50,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2020-09-24 17:08:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-09-24 17:08:50,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 194. [2020-09-24 17:08:50,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-09-24 17:08:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 207 transitions. [2020-09-24 17:08:50,455 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 207 transitions. Word has length 54 [2020-09-24 17:08:50,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:50,456 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 207 transitions. [2020-09-24 17:08:50,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:08:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 207 transitions. [2020-09-24 17:08:50,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 17:08:50,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:50,457 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:50,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 17:08:50,457 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]=== [2020-09-24 17:08:50,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:50,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1270543956, now seen corresponding path program 1 times [2020-09-24 17:08:50,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:50,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685454624] [2020-09-24 17:08:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:50,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:50,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:50,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:50,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 17:08:50,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:08:50,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 17:08:50,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:50,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:08:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-24 17:08:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:08:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:50,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:50,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:50,764 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:50,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:08:50,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:50,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:08:50,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:50,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:50,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685454624] [2020-09-24 17:08:50,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:50,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:08:50,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565982230] [2020-09-24 17:08:50,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:08:50,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:50,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:08:50,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:08:50,775 INFO L87 Difference]: Start difference. First operand 194 states and 207 transitions. Second operand 4 states. [2020-09-24 17:08:50,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:50,976 INFO L93 Difference]: Finished difference Result 200 states and 213 transitions. [2020-09-24 17:08:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 17:08:50,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-09-24 17:08:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:50,978 INFO L225 Difference]: With dead ends: 200 [2020-09-24 17:08:50,978 INFO L226 Difference]: Without dead ends: 195 [2020-09-24 17:08:50,978 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 [2020-09-24 17:08:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-24 17:08:50,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-24 17:08:50,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 17:08:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 208 transitions. [2020-09-24 17:08:50,989 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 208 transitions. Word has length 56 [2020-09-24 17:08:50,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:50,990 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 208 transitions. [2020-09-24 17:08:50,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:08:50,990 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 208 transitions. [2020-09-24 17:08:50,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 17:08:50,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:50,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:50,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 17:08:50,992 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]=== [2020-09-24 17:08:50,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:50,992 INFO L82 PathProgramCache]: Analyzing trace with hash 2002844954, now seen corresponding path program 1 times [2020-09-24 17:08:50,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:50,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217298063] [2020-09-24 17:08:50,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 17:08:51,011 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 17:08:51,011 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 17:08:51,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 17:08:51,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:08:51 BoogieIcfgContainer [2020-09-24 17:08:51,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:08:51,050 INFO L168 Benchmark]: Toolchain (without parser) took 20507.89 ms. Allocated memory was 139.5 MB in the beginning and 383.8 MB in the end (delta: 244.3 MB). Free memory was 100.6 MB in the beginning and 189.7 MB in the end (delta: -89.1 MB). Peak memory consumption was 155.2 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:51,055 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 17:08:51,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.90 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 170.2 MB in the end (delta: -70.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:51,057 INFO L168 Benchmark]: Boogie Preprocessor took 85.79 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 166.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:51,057 INFO L168 Benchmark]: RCFGBuilder took 878.64 ms. Allocated memory is still 203.4 MB. Free memory was 166.5 MB in the beginning and 103.1 MB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:51,063 INFO L168 Benchmark]: TraceAbstraction took 18882.91 ms. Allocated memory was 203.4 MB in the beginning and 383.8 MB in the end (delta: 180.4 MB). Free memory was 102.5 MB in the beginning and 189.7 MB in the end (delta: -87.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:51,071 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.90 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 170.2 MB in the end (delta: -70.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.79 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 166.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 878.64 ms. Allocated memory is still 203.4 MB. Free memory was 166.5 MB in the beginning and 103.1 MB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18882.91 ms. Allocated memory was 203.4 MB in the beginning and 383.8 MB in the end (delta: 180.4 MB). Free memory was 102.5 MB in the beginning and 189.7 MB in the end (delta: -87.2 MB). Peak memory consumption was 93.2 MB. 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, 171 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.7s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1764 SDtfs, 2203 SDslu, 4786 SDs, 0 SdLazy, 3501 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 747 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 188231 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...