/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/list-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:22:20,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:22:20,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:22:20,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:22:20,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:22:20,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:22:20,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:22:20,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:22:20,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:22:20,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:22:20,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:22:20,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:22:20,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:22:20,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:22:20,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:22:20,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:22:20,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:22:20,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:22:20,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:22:20,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:22:20,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:22:20,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:22:20,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:22:20,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:22:20,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:22:20,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:22:20,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:22:20,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:22:20,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:22:20,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:22:20,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:22:20,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:22:20,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:22:20,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:22:20,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:22:20,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:22:20,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:22:20,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:22:20,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:22:20,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:22:20,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:22:20,301 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 04:22:20,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:22:20,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:22:20,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:22:20,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:22:20,330 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:22:20,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:22:20,331 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:22:20,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:22:20,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:22:20,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:22:20,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:22:20,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:22:20,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:22:20,332 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:22:20,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:22:20,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:22:20,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:22:20,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:22:20,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:22:20,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:22:20,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:22:20,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:22:20,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:22:20,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:22:20,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:22:20,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:22:20,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:22:20,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:22:20,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:22:20,335 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 04:22:20,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:22:20,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:22:20,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:22:20,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:22:20,838 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:22:20,839 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-09-25 04:22:20,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f828d16/f01f03eada3c4ecbae998faf8a79beda/FLAG87592b403 [2020-09-25 04:22:21,563 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:22:21,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-properties/list_search-1.i [2020-09-25 04:22:21,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f828d16/f01f03eada3c4ecbae998faf8a79beda/FLAG87592b403 [2020-09-25 04:22:21,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f828d16/f01f03eada3c4ecbae998faf8a79beda [2020-09-25 04:22:21,785 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:22:21,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:22:21,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:21,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:22:21,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:22:21,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:21" (1/1) ... [2020-09-25 04:22:21,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:21, skipping insertion in model container [2020-09-25 04:22:21,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:21" (1/1) ... [2020-09-25 04:22:21,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:22:21,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:22:22,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:22,318 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:22:22,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:22,428 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:22:22,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22 WrapperNode [2020-09-25 04:22:22,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:22,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:22:22,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:22:22,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:22:22,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (1/1) ... [2020-09-25 04:22:22,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (1/1) ... [2020-09-25 04:22:22,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (1/1) ... [2020-09-25 04:22:22,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (1/1) ... [2020-09-25 04:22:22,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (1/1) ... [2020-09-25 04:22:22,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (1/1) ... [2020-09-25 04:22:22,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (1/1) ... [2020-09-25 04:22:22,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:22:22,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:22:22,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:22:22,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:22:22,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (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 04:22:22,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:22:22,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:22:22,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 04:22:22,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 04:22:22,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 04:22:22,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-09-25 04:22:22,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-09-25 04:22:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-09-25 04:22:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-09-25 04:22:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-09-25 04:22:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:22:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:22:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 04:22:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 04:22:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 04:22:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 04:22:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 04:22:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 04:22:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 04:22:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 04:22:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 04:22:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 04:22:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 04:22:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 04:22:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 04:22:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 04:22:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 04:22:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 04:22:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 04:22:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 04:22:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 04:22:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-09-25 04:22:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-09-25 04:22:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-09-25 04:22:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 04:22:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 04:22:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 04:22:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 04:22:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 04:22:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 04:22:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 04:22:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 04:22:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 04:22:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 04:22:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 04:22:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 04:22:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 04:22:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 04:22:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 04:22:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 04:22:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 04:22:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 04:22:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 04:22:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 04:22:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 04:22:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 04:22:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 04:22:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 04:22:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 04:22:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 04:22:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 04:22:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 04:22:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 04:22:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 04:22:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 04:22:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 04:22:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 04:22:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 04:22:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:22:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 04:22:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 04:22:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:22:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 04:22:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 04:22:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 04:22:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 04:22:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:22:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 04:22:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 04:22:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 04:22:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:22:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 04:22:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 04:22:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 04:22:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 04:22:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 04:22:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 04:22:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 04:22:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 04:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 04:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 04:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 04:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 04:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 04:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 04:22:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 04:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 04:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 04:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 04:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 04:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 04:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 04:22:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 04:22:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 04:22:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 04:22:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 04:22:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 04:22:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 04:22:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 04:22:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 04:22:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 04:22:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 04:22:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 04:22:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 04:22:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 04:22:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 04:22:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 04:22:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 04:22:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 04:22:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 04:22:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-09-25 04:22:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:22:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:22:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-09-25 04:22:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:22:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:22:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:22:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:22:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:22:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:22:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:22:23,185 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:22:23,185 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 04:22:23,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:23 BoogieIcfgContainer [2020-09-25 04:22:23,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:22:23,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:22:23,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:22:23,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:22:23,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:22:21" (1/3) ... [2020-09-25 04:22:23,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7eb86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:23, skipping insertion in model container [2020-09-25 04:22:23,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:22" (2/3) ... [2020-09-25 04:22:23,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7eb86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:23, skipping insertion in model container [2020-09-25 04:22:23,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:23" (3/3) ... [2020-09-25 04:22:23,200 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-09-25 04:22:23,211 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:22:23,222 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:22:23,242 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:22:23,268 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:22:23,268 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:22:23,268 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:22:23,268 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:22:23,268 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:22:23,268 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:22:23,269 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:22:23,269 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:22:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-09-25 04:22:23,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 04:22:23,301 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:23,302 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:23,303 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:23,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:23,310 INFO L82 PathProgramCache]: Analyzing trace with hash 42223880, now seen corresponding path program 1 times [2020-09-25 04:22:23,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:23,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113935763] [2020-09-25 04:22:23,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:23,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:23,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:24,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:24,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 04:22:28,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 04:22:28,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:28,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-25 04:22:28,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:28,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:22:28,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:28,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:22:28,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:28,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:22:28,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:28,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:22:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:28,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:28,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:22:28,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:28,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:22:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:28,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:28,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:28,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:22:28,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:28,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:28,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:22:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:28,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:28,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:28,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:22:28,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:28,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:28,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 04:22:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:28,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 04:22:28,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:28,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 04:22:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:28,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:22:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:22:28,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:22:28,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:28,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-09-25 04:22:28,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113935763] [2020-09-25 04:22:28,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:28,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:22:28,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239674996] [2020-09-25 04:22:28,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:22:28,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:28,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:22:28,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:22:28,878 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2020-09-25 04:22:29,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:29,076 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2020-09-25 04:22:29,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:22:29,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 82 [2020-09-25 04:22:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:29,091 INFO L225 Difference]: With dead ends: 100 [2020-09-25 04:22:29,091 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 04:22:29,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 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 04:22:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 04:22:29,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 04:22:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 04:22:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2020-09-25 04:22:29,165 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 82 [2020-09-25 04:22:29,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:29,168 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2020-09-25 04:22:29,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:22:29,168 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2020-09-25 04:22:29,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 04:22:29,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:29,172 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:29,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:22:29,173 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:29,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:29,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1818163735, now seen corresponding path program 1 times [2020-09-25 04:22:29,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:29,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918777599] [2020-09-25 04:22:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:29,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:29,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:29,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:30,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:31,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 04:22:34,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:34,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 04:22:34,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:22:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 04:22:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:22:34,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:34,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:34,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:22:34,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:34,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:22:34,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:34,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:22:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:34,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:34,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:22:34,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:34,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:34,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:34,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:34,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:22:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:34,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:34,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:34,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:22:34,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:34,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:34,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:22:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:34,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:34,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:34,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:22:34,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:34,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:34,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 04:22:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:34,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:34,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 04:22:34,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:34,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:34,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:34,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 04:22:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:34,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:34,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:34,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 04:22:34,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 04:22:34,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:34,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-09-25 04:22:34,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918777599] [2020-09-25 04:22:34,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:34,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:22:34,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929127311] [2020-09-25 04:22:34,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:22:34,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:34,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:22:34,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:22:34,775 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 10 states. [2020-09-25 04:22:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:35,479 INFO L93 Difference]: Finished difference Result 134 states and 149 transitions. [2020-09-25 04:22:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:22:35,480 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-25 04:22:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:35,484 INFO L225 Difference]: With dead ends: 134 [2020-09-25 04:22:35,484 INFO L226 Difference]: Without dead ends: 86 [2020-09-25 04:22:35,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:22:35,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-25 04:22:35,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 71. [2020-09-25 04:22:35,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 04:22:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2020-09-25 04:22:35,499 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 86 [2020-09-25 04:22:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:35,500 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2020-09-25 04:22:35,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:22:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2020-09-25 04:22:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 04:22:35,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:35,502 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:35,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:22:35,503 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:35,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1346991358, now seen corresponding path program 1 times [2020-09-25 04:22:35,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:35,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326960363] [2020-09-25 04:22:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:35,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:36,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 04:22:36,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:36,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 842 [2020-09-25 04:22:36,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:36,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:22:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 04:22:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 04:22:36,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:36,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:36,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:36,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:22:36,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:36,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:22:36,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:36,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:22:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:36,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:36,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:36,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:36,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:22:36,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:36,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:36,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:36,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:36,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:36,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:36,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:22:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:36,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:36,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:36,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:36,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:22:36,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:36,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:36,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:36,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 04:22:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:36,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:36,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:36,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:36,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:22:36,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:36,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:36,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:36,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:36,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:36,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:36,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:36,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:36,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:36,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:22:36,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:36,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:36,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:22:36,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:36,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:22:36,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:36,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:22:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:36,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:22:36,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:36,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 04:22:36,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:36,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:22:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:22:36,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:22:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-09-25 04:22:36,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326960363] [2020-09-25 04:22:36,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:36,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 04:22:36,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728903317] [2020-09-25 04:22:36,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 04:22:36,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:36,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 04:22:36,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:22:36,898 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 13 states. [2020-09-25 04:22:37,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:37,950 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2020-09-25 04:22:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 04:22:37,952 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2020-09-25 04:22:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:37,956 INFO L225 Difference]: With dead ends: 91 [2020-09-25 04:22:37,956 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 04:22:37,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2020-09-25 04:22:37,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 04:22:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2020-09-25 04:22:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 04:22:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2020-09-25 04:22:37,976 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 91 [2020-09-25 04:22:37,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:37,980 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2020-09-25 04:22:37,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 04:22:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2020-09-25 04:22:37,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 04:22:37,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:37,991 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:37,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:22:37,992 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:37,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:37,993 INFO L82 PathProgramCache]: Analyzing trace with hash 2140447576, now seen corresponding path program 1 times [2020-09-25 04:22:37,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:37,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530741430] [2020-09-25 04:22:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:38,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:38,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:38,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:39,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:40,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:43,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:43,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 04:22:43,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:43,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 04:22:43,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:43,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:43,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:22:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 04:22:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:22:43,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:43,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:43,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:43,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:43,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:22:43,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:43,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:22:43,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:43,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:43,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:43,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:43,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:43,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:22:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:43,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:43,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:43,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:43,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:43,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:22:43,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:43,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:43,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:43,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:22:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:43,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:43,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:43,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:43,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:43,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:22:43,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:43,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:43,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:43,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 04:22:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:43,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:43,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:43,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:43,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:43,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:22:43,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:43,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:43,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:43,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:43,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:43,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:43,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:43,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:43,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:43,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:43,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 04:22:43,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:43,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:43,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:43,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:22:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:43,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:43,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:43,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:43,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:22:43,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:43,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 04:22:43,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:43,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:43,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:22:43,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 04:22:43,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:22:43,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-25 04:22:43,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530741430] [2020-09-25 04:22:43,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:22:43,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 04:22:43,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567421962] [2020-09-25 04:22:43,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 04:22:43,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:43,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 04:22:43,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:22:43,637 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 12 states. [2020-09-25 04:22:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:44,654 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2020-09-25 04:22:44,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:22:44,655 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-09-25 04:22:44,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:44,657 INFO L225 Difference]: With dead ends: 128 [2020-09-25 04:22:44,657 INFO L226 Difference]: Without dead ends: 105 [2020-09-25 04:22:44,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2020-09-25 04:22:44,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-25 04:22:44,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 85. [2020-09-25 04:22:44,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 04:22:44,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2020-09-25 04:22:44,670 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 99 [2020-09-25 04:22:44,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:44,671 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2020-09-25 04:22:44,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 04:22:44,671 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2020-09-25 04:22:44,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 04:22:44,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:44,673 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:44,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:22:44,673 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:44,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:44,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1242921541, now seen corresponding path program 1 times [2020-09-25 04:22:44,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:44,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158640043] [2020-09-25 04:22:44,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:44,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:46,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 04:22:49,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:49,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 04:22:49,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:22:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 04:22:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 04:22:49,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:49,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:22:49,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:22:49,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:49,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:49,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:49,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:22:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:49,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:22:49,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:49,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:49,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:22:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:49,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:49,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:49,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:49,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:22:49,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:49,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:49,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:49,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:49,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 04:22:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:49,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:50,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:50,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:50,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 04:22:50,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:50,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:22:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:22:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:50,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:50,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:50,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:50,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:50,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:22:50,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:50,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:22:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:22:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:22:50,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:50,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:22:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:50,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:50,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:50,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:50,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:50,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:50,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 04:22:50,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:50,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:22:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 04:22:50,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 04:22:51,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158640043] [2020-09-25 04:22:51,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:22:51,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 04:22:51,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94079325] [2020-09-25 04:22:51,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 04:22:51,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:51,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 04:22:51,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2020-09-25 04:22:51,069 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 27 states. [2020-09-25 04:22:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:53,535 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2020-09-25 04:22:53,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 04:22:53,535 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 101 [2020-09-25 04:22:53,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:53,537 INFO L225 Difference]: With dead ends: 113 [2020-09-25 04:22:53,537 INFO L226 Difference]: Without dead ends: 100 [2020-09-25 04:22:53,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=252, Invalid=2298, Unknown=0, NotChecked=0, Total=2550 [2020-09-25 04:22:53,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-25 04:22:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 88. [2020-09-25 04:22:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 04:22:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2020-09-25 04:22:53,550 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 101 [2020-09-25 04:22:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:53,551 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2020-09-25 04:22:53,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 04:22:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2020-09-25 04:22:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-25 04:22:53,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:53,553 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:53,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:22:53,553 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:53,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:53,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1667050223, now seen corresponding path program 2 times [2020-09-25 04:22:53,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:53,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516059009] [2020-09-25 04:22:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:53,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:54,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:55,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:56,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:58,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:58,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 04:22:58,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:58,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 04:22:58,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:58,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 04:22:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 04:22:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:22:58,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:58,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:58,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:58,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:58,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:22:58,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:58,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:22:58,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:58,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:58,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:22:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:58,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:58,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:58,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:22:58,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:58,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:22:58,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:58,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:58,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:22:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:58,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:58,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:58,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:58,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 04:22:58,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:58,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:58,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:58,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 04:22:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:58,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:58,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:58,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:58,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:58,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 04:22:58,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:58,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:58,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:22:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:22:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:22:58,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:59,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:59,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:59,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:59,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:22:59,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-25 04:22:59,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:59,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:22:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:22:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:22:59,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:59,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:22:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:59,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:59,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:59,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 04:22:59,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:59,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 04:22:59,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:59,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:22:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 04:22:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 04:22:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:23:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 31 proven. 43 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 04:23:00,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516059009] [2020-09-25 04:23:00,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:23:00,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 04:23:00,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852347219] [2020-09-25 04:23:00,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 04:23:00,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:00,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 04:23:00,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=640, Unknown=0, NotChecked=0, Total=702 [2020-09-25 04:23:00,254 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand 27 states. [2020-09-25 04:23:02,418 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-09-25 04:23:03,323 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-09-25 04:23:03,730 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-09-25 04:23:04,010 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-09-25 04:23:04,198 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-09-25 04:23:04,374 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-09-25 04:23:04,561 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-09-25 04:23:04,836 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-09-25 04:23:05,021 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-09-25 04:23:05,187 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-09-25 04:23:05,364 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-09-25 04:23:05,806 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-09-25 04:23:05,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:05,924 INFO L93 Difference]: Finished difference Result 160 states and 167 transitions. [2020-09-25 04:23:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-25 04:23:05,925 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 109 [2020-09-25 04:23:05,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:05,927 INFO L225 Difference]: With dead ends: 160 [2020-09-25 04:23:05,927 INFO L226 Difference]: Without dead ends: 137 [2020-09-25 04:23:05,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=591, Invalid=3569, Unknown=0, NotChecked=0, Total=4160 [2020-09-25 04:23:05,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-09-25 04:23:05,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2020-09-25 04:23:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 04:23:05,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 112 transitions. [2020-09-25 04:23:05,943 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 112 transitions. Word has length 109 [2020-09-25 04:23:05,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:05,943 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 112 transitions. [2020-09-25 04:23:05,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 04:23:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 112 transitions. [2020-09-25 04:23:05,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 04:23:05,944 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:05,945 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:05,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:23:05,945 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:05,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:05,945 INFO L82 PathProgramCache]: Analyzing trace with hash -936170188, now seen corresponding path program 2 times [2020-09-25 04:23:05,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:05,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846366921] [2020-09-25 04:23:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:06,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:08,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:08,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 04:23:08,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:08,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2877 [2020-09-25 04:23:08,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:08,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:08,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 04:23:08,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 04:23:08,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:23:08,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:23:08,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:08,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:08,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:23:08,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:08,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:23:08,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:08,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:08,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:08,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:09,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:23:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:09,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:09,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:09,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:23:09,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:09,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:23:09,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:09,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:09,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:09,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:09,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:09,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:09,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:23:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:09,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:09,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:09,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:23:09,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:09,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 04:23:09,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:09,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:23:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:09,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:23:09,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:09,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 04:23:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:09,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:09,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:09,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:23:09,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:09,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 04:23:09,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:09,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:09,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:23:09,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:23:09,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:23:09,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:10,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:23:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:10,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:10,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:23:10,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:10,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 04:23:10,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:10,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:10,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:23:10,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:23:10,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:23:10,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0