/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:22:13,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:22:13,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:22:13,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:22:13,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:22:13,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:22:13,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:22:13,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:22:13,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:22:13,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:22:13,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:22:13,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:22:13,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:22:13,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:22:13,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:22:13,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:22:13,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:22:13,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:22:13,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:22:13,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:22:13,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:22:13,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:22:13,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:22:13,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:22:13,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:22:13,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:22:13,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:22:13,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:22:13,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:22:13,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:22:13,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:22:13,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:22:13,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:22:13,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:22:13,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:22:13,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:22:13,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:22:13,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:22:13,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:22:13,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:22:13,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:22:13,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:22:13,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:22:13,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:22:13,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:22:13,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:22:13,726 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:22:13,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:22:13,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:22:13,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:22:13,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:22:13,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:22:13,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:22:13,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:22:13,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:22:13,729 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:22:13,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:22:13,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:22:13,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:22:13,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:22:13,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:22:13,730 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:22:13,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:22:13,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:22:13,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:22:13,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:22:13,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:22:13,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:22:13,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:22:13,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:22:13,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:22:13,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:22:14,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:22:14,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:22:14,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:22:14,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:22:14,247 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:22:14,249 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-09-25 04:22:14,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ea1b4c4b/63225b5fe2de4210b4f774df46d21a9a/FLAG4350dcccd [2020-09-25 04:22:14,909 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:22:14,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-09-25 04:22:14,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ea1b4c4b/63225b5fe2de4210b4f774df46d21a9a/FLAG4350dcccd [2020-09-25 04:22:15,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ea1b4c4b/63225b5fe2de4210b4f774df46d21a9a [2020-09-25 04:22:15,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:22:15,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:22:15,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:15,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:22:15,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:22:15,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:15" (1/1) ... [2020-09-25 04:22:15,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd36ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:15, skipping insertion in model container [2020-09-25 04:22:15,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:15" (1/1) ... [2020-09-25 04:22:15,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:22:15,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:22:15,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:15,972 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:22:16,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:16,097 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:22:16,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16 WrapperNode [2020-09-25 04:22:16,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:16,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:22:16,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:22:16,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:22:16,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (1/1) ... [2020-09-25 04:22:16,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (1/1) ... [2020-09-25 04:22:16,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (1/1) ... [2020-09-25 04:22:16,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (1/1) ... [2020-09-25 04:22:16,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (1/1) ... [2020-09-25 04:22:16,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (1/1) ... [2020-09-25 04:22:16,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (1/1) ... [2020-09-25 04:22:16,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:22:16,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:22:16,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:22:16,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:22:16,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:22:16,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:22:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:22:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 04:22:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 04:22:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 04:22:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 04:22:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 04:22:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 04:22:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 04:22:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 04:22:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 04:22:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 04:22:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 04:22:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 04:22:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 04:22:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 04:22:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 04:22:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 04:22:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 04:22:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 04:22:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 04:22:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:22:16,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:22:16,286 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 04:22:16,286 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 04:22:16,286 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 04:22:16,286 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 04:22:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 04:22:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 04:22:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 04:22:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 04:22:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 04:22:16,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 04:22:16,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 04:22:16,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 04:22:16,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 04:22:16,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 04:22:16,288 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 04:22:16,288 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 04:22:16,289 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 04:22:16,289 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 04:22:16,289 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 04:22:16,289 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 04:22:16,289 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 04:22:16,289 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 04:22:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 04:22:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 04:22:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 04:22:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 04:22:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 04:22:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 04:22:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 04:22:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 04:22:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 04:22:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 04:22:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 04:22:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 04:22:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 04:22:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 04:22:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 04:22:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 04:22:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 04:22:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 04:22:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 04:22:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 04:22:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 04:22:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 04:22:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 04:22:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 04:22:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 04:22:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 04:22:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 04:22:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 04:22:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 04:22:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 04:22:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:22:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 04:22:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 04:22:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:22:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 04:22:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 04:22:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 04:22:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 04:22:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 04:22:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:22:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 04:22:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 04:22:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 04:22:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:22:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 04:22:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 04:22:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 04:22:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 04:22:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 04:22:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 04:22:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 04:22:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 04:22:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 04:22:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 04:22:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 04:22:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 04:22:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 04:22:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 04:22:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 04:22:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 04:22:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 04:22:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 04:22:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 04:22:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 04:22:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 04:22:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 04:22:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 04:22:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 04:22:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 04:22:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 04:22:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 04:22:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 04:22:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 04:22:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 04:22:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 04:22:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 04:22:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 04:22:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 04:22:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 04:22:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 04:22:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 04:22:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 04:22:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 04:22:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:22:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 04:22:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 04:22:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:22:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:22:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 04:22:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 04:22:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:22:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 04:22:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:22:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 04:22:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 04:22:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:22:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 04:22:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 04:22:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 04:22:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 04:22:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 04:22:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 04:22:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 04:22:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 04:22:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 04:22:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 04:22:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 04:22:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:22:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:22:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:22:17,286 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:22:17,287 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 04:22:17,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:17 BoogieIcfgContainer [2020-09-25 04:22:17,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:22:17,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:22:17,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:22:17,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:22:17,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:22:15" (1/3) ... [2020-09-25 04:22:17,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c95ffcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:17, skipping insertion in model container [2020-09-25 04:22:17,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:16" (2/3) ... [2020-09-25 04:22:17,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c95ffcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:17, skipping insertion in model container [2020-09-25 04:22:17,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:17" (3/3) ... [2020-09-25 04:22:17,304 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-09-25 04:22:17,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:22:17,329 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:22:17,353 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:22:17,387 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:22:17,387 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:22:17,387 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:22:17,387 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:22:17,387 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:22:17,388 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:22:17,388 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:22:17,388 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:22:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 04:22:17,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 04:22:17,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:17,433 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:17,433 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:17,442 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 04:22:17,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:17,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067387227] [2020-09-25 04:22:17,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:17,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:19,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:22,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 04:22:22,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:22,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 04:22:22,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:22,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:22,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:22,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 04:22:22,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:22,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:22:22,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:22,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:22,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:22:22,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:22,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:22:22,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:22,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:22,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:22,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:22,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:22,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:22,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 04:22:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:22,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:23,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:23,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:25,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:27,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:27,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 04:22:27,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 04:22:27,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:27,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:27,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:27,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 04:22:27,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:27,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:27,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:27,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:31,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:31,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:32,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:32,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 04:22:32,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:32,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 04:22:32,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:32,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 04:22:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:32,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:32,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:22:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:32,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:33,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:33,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:22:33,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:33,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 04:22:33,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:33,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:33,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:33,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:22:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:33,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:33,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:33,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:22:33,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 04:22:33,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:33,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:33,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:33,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:33,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:22:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:33,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:33,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:33,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:22:33,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:33,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:22:33,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:33,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:33,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:33,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 04:22:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:33,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:33,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:33,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:22:33,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:33,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 04:22:33,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:33,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:33,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:33,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:33,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:33,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:33,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:22:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:33,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:33,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:33,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:22:33,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 04:22:33,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:33,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:33,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:22:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:33,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:33,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:33,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:22:33,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:33,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:22:33,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:33,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:33,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 04:22:33,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067387227] [2020-09-25 04:22:33,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:33,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:22:33,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865577757] [2020-09-25 04:22:33,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:22:33,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:33,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:22:33,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:22:33,299 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 04:22:33,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:33,882 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 04:22:33,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:22:33,884 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 04:22:33,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:33,902 INFO L225 Difference]: With dead ends: 568 [2020-09-25 04:22:33,902 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 04:22:33,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:22:33,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 04:22:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 04:22:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 04:22:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 04:22:34,000 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 04:22:34,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:34,004 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 04:22:34,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:22:34,004 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 04:22:34,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 04:22:34,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:34,010 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:34,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:22:34,011 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:34,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:34,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 04:22:34,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:34,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340924530] [2020-09-25 04:22:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:34,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:39,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:39,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 04:22:39,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:39,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 04:22:39,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:39,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:39,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:39,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:22:39,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:22:39,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:39,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:39,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:39,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:39,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:22:39,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:39,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:39,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:39,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:39,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 04:22:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:39,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:39,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:39,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:40,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:44,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 04:22:44,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 04:22:44,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:44,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:22:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:22:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:44,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:44,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:44,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:44,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:45,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:22:49,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:22:49,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:22:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 04:22:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:49,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:22:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:22:49,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 04:22:49,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:49,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:22:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:49,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:22:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:22:49,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 04:22:49,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:49,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:49,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:22:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:22:49,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:49,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:49,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:49,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 04:22:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:22:49,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 04:22:49,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 04:22:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:49,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:22:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:22:49,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 04:22:49,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:22:49,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:49,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:22:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:22:49,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:49,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:49,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:49,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 04:22:49,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340924530] [2020-09-25 04:22:49,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:49,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:22:49,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385441715] [2020-09-25 04:22:49,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:22:49,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:49,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:22:49,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:22:49,693 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 7 states. [2020-09-25 04:22:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:50,915 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-09-25 04:22:50,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:22:50,915 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-25 04:22:50,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:50,920 INFO L225 Difference]: With dead ends: 542 [2020-09-25 04:22:50,920 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 04:22:50,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:22:50,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 04:22:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-09-25 04:22:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 04:22:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-09-25 04:22:50,955 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-09-25 04:22:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:50,955 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-09-25 04:22:50,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:22:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-09-25 04:22:50,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 04:22:50,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:50,965 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:50,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:22:50,965 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:50,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:50,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-09-25 04:22:50,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:50,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815504855] [2020-09-25 04:22:50,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:51,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:52,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:56,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:56,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 04:22:56,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:56,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 04:22:56,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:56,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:56,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 04:22:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:22:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 04:22:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:56,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:56,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:56,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:56,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:22:56,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:56,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:22:56,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:56,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:56,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:56,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 04:22:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:56,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:56,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:57,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:01,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:01,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 04:23:01,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:23:01,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-09-25 04:23:01,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:01,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 04:23:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 04:23:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 04:23:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:23:01,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:01,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:02,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:02,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:04,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking...