/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=NARROWEST --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-ext3-properties/sll_nondet_insert-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:08:01,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:08:01,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:08:01,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:08:01,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:08:01,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:08:01,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:08:01,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:08:01,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:08:01,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:08:01,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:08:01,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:08:01,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:08:01,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:08:01,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:08:01,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:08:02,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:08:02,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:08:02,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:08:02,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:08:02,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:08:02,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:08:02,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:08:02,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:08:02,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:08:02,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:08:02,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:08:02,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:08:02,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:08:02,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:08:02,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:08:02,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:08:02,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:08:02,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:08:02,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:08:02,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:08:02,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:08:02,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:08:02,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:08:02,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:08:02,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:08:02,035 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 02:08:02,082 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:08:02,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:08:02,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:08:02,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:08:02,085 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:08:02,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:08:02,086 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:08:02,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:08:02,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:08:02,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:08:02,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:08:02,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:08:02,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:08:02,089 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:08:02,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:08:02,089 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:08:02,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:08:02,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:08:02,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:08:02,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:08:02,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:08:02,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:08:02,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:08:02,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:08:02,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:08:02,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:08:02,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:08:02,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:08:02,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:08:02,092 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:08:02,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:08:02,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:08:02,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:08:02,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:08:02,599 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:08:02,600 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-25 02:08:02,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e8443723/5591f663177d425eb6650d25c98d3f33/FLAGa34f8c6dd [2020-09-25 02:08:03,345 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:08:03,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-25 02:08:03,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e8443723/5591f663177d425eb6650d25c98d3f33/FLAGa34f8c6dd [2020-09-25 02:08:03,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e8443723/5591f663177d425eb6650d25c98d3f33 [2020-09-25 02:08:03,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:08:03,616 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:08:03,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:08:03,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:08:03,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:08:03,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:08:03" (1/1) ... [2020-09-25 02:08:03,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6579a572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:03, skipping insertion in model container [2020-09-25 02:08:03,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:08:03" (1/1) ... [2020-09-25 02:08:03,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:08:03,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:08:04,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:08:04,236 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:08:04,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:08:04,393 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:08:04,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04 WrapperNode [2020-09-25 02:08:04,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:08:04,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:08:04,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:08:04,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:08:04,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (1/1) ... [2020-09-25 02:08:04,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (1/1) ... [2020-09-25 02:08:04,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (1/1) ... [2020-09-25 02:08:04,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (1/1) ... [2020-09-25 02:08:04,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (1/1) ... [2020-09-25 02:08:04,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (1/1) ... [2020-09-25 02:08:04,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (1/1) ... [2020-09-25 02:08:04,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:08:04,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:08:04,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:08:04,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:08:04,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (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 02:08:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:08:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:08:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 02:08:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 02:08:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-25 02:08:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-09-25 02:08:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2020-09-25 02:08:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-09-25 02:08:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2020-09-25 02:08:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2020-09-25 02:08:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:08:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:08:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:08:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 02:08:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 02:08:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 02:08:04,552 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 02:08:04,552 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 02:08:04,552 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 02:08:04,553 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 02:08:04,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 02:08:04,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 02:08:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 02:08:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 02:08:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 02:08:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 02:08:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 02:08:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 02:08:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 02:08:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 02:08:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 02:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 02:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 02:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 02:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 02:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 02:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 02:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 02:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 02:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 02:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 02:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 02:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 02:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 02:08:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 02:08:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 02:08:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 02:08:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 02:08:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 02:08:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 02:08:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 02:08:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 02:08:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 02:08:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 02:08:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 02:08:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 02:08:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 02:08:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 02:08:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 02:08:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 02:08:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 02:08:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 02:08:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 02:08:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 02:08:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 02:08:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:08:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 02:08:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 02:08:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:08:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 02:08:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 02:08:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 02:08:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 02:08:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 02:08:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:08:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 02:08:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 02:08:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 02:08:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 02:08:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 02:08:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 02:08:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 02:08:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 02:08:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 02:08:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 02:08:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 02:08:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 02:08:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 02:08:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 02:08:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 02:08:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 02:08:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 02:08:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 02:08:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 02:08:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 02:08:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 02:08:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 02:08:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 02:08:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 02:08:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 02:08:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 02:08:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 02:08:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 02:08:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 02:08:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 02:08:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 02:08:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 02:08:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 02:08:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 02:08:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 02:08:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 02:08:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 02:08:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 02:08:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 02:08:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 02:08:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 02:08:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 02:08:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 02:08:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-25 02:08:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-09-25 02:08:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:08:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:08:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2020-09-25 02:08:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:08:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-09-25 02:08:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:08:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2020-09-25 02:08:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2020-09-25 02:08:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:08:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:08:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 02:08:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:08:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:08:04,971 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-25 02:08:05,286 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:08:05,287 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 02:08:05,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:08:05 BoogieIcfgContainer [2020-09-25 02:08:05,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:08:05,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:08:05,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:08:05,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:08:05,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:08:03" (1/3) ... [2020-09-25 02:08:05,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500dc804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:08:05, skipping insertion in model container [2020-09-25 02:08:05,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:04" (2/3) ... [2020-09-25 02:08:05,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500dc804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:08:05, skipping insertion in model container [2020-09-25 02:08:05,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:08:05" (3/3) ... [2020-09-25 02:08:05,304 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2020-09-25 02:08:05,316 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:08:05,328 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:08:05,349 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:08:05,380 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:08:05,380 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:08:05,381 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:08:05,381 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:08:05,381 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:08:05,381 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:08:05,381 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:08:05,381 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:08:05,409 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-09-25 02:08:05,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 02:08:05,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:08:05,423 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:08:05,424 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:08:05,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:08:05,432 INFO L82 PathProgramCache]: Analyzing trace with hash 422432984, now seen corresponding path program 1 times [2020-09-25 02:08:05,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:08:05,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521730293] [2020-09-25 02:08:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:08:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:05,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:05,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:05,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:05,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:06,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 02:08:06,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:08:06,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-09-25 02:08:06,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:06,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:06,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 02:08:06,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:06,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:08:06,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:08:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:06,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:06,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:08:06,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:06,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:08:06,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:06,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:06,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:08:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:06,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:06,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 02:08:06,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:08:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 02:08:06,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:08:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:06,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:06,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 02:08:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:06,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:06,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:08:06,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:08:06,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:08:06,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:06,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:06,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 02:08:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:06,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:06,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 02:08:06,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:08:06,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:08:06,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:06,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:06,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:08:06,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:06,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:06,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 02:08:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:06,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:06,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:08:06,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:06,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:08:06,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 02:08:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:06,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:06,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 02:08:06,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521730293] [2020-09-25 02:08:06,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:08:06,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:08:06,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829308555] [2020-09-25 02:08:06,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:08:06,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:08:06,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:08:06,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:08:06,350 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 4 states. [2020-09-25 02:08:06,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:08:06,730 INFO L93 Difference]: Finished difference Result 289 states and 337 transitions. [2020-09-25 02:08:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 02:08:06,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-09-25 02:08:06,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:08:06,747 INFO L225 Difference]: With dead ends: 289 [2020-09-25 02:08:06,748 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 02:08:06,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 02:08:06,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 02:08:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 114. [2020-09-25 02:08:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 02:08:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-09-25 02:08:06,818 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 54 [2020-09-25 02:08:06,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:08:06,818 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-09-25 02:08:06,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:08:06,819 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-09-25 02:08:06,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 02:08:06,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:08:06,823 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:08:06,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:08:06,824 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:08:06,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:08:06,825 INFO L82 PathProgramCache]: Analyzing trace with hash 333013349, now seen corresponding path program 1 times [2020-09-25 02:08:06,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:08:06,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525124481] [2020-09-25 02:08:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:08:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:06,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:06,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:07,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:07,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:07,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:08,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:08,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:08,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:11,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:11,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 02:08:11,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:08:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 02:08:11,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:08:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:08:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:08:11,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:11,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:08:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:11,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:11,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:11,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:08:11,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:11,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:08:11,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:08:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:11,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:11,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:11,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:11,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:08:11,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:08:11,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 02:08:11,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:11,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:08:11,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:08:11,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:08:11,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:12,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 02:08:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:12,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:12,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:12,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:08:12,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:12,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:08:12,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:12,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 02:08:12,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:12,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:08:12,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 02:08:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:12,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:12,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:12,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:08:12,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:12,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:08:12,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:12,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:08:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:12,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:08:12,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 02:08:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:12,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:12,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:12,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:08:12,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:12,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:08:12,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:12,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:12,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 02:08:12,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:12,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:08:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 02:08:12,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525124481] [2020-09-25 02:08:12,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:08:12,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 02:08:12,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426046640] [2020-09-25 02:08:12,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:08:12,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:08:12,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:08:12,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:08:12,139 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 9 states. [2020-09-25 02:08:12,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:08:12,753 INFO L93 Difference]: Finished difference Result 268 states and 297 transitions. [2020-09-25 02:08:12,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:08:12,753 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-25 02:08:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:08:12,757 INFO L225 Difference]: With dead ends: 268 [2020-09-25 02:08:12,757 INFO L226 Difference]: Without dead ends: 162 [2020-09-25 02:08:12,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:08:12,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-25 02:08:12,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 131. [2020-09-25 02:08:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-09-25 02:08:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 144 transitions. [2020-09-25 02:08:12,781 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 144 transitions. Word has length 69 [2020-09-25 02:08:12,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:08:12,781 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 144 transitions. [2020-09-25 02:08:12,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:08:12,781 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 144 transitions. [2020-09-25 02:08:12,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 02:08:12,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:08:12,791 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2020-09-25 02:08:12,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:08:12,791 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:08:12,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:08:12,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1735568478, now seen corresponding path program 1 times [2020-09-25 02:08:12,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:08:12,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93469099] [2020-09-25 02:08:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:08:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:12,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:12,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:12,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:13,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:13,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:13,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:14,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:17,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:17,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:08:17,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:08:17,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:08:17,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:17,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:08:17,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:08:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 02:08:17,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:17,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:08:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:17,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:17,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:17,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:08:17,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:17,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:08:17,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:17,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:17,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:17,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:17,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:17,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:08:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:17,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:17,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:17,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 02:08:17,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:17,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 02:08:17,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:08:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 02:08:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:17,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 02:08:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:17,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:18,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:18,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:08:18,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:18,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 02:08:18,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:18,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:08:18,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:08:18,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 02:08:18,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 02:08:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:18,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:18,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:18,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:08:18,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:18,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:08:18,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:08:18,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:18,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:18,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 02:08:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:18,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:18,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:18,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:08:18,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:18,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:08:18,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 02:08:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:18,113 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 02:08:18,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93469099] [2020-09-25 02:08:18,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:08:18,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 02:08:18,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335866516] [2020-09-25 02:08:18,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 02:08:18,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:08:18,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 02:08:18,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:08:18,117 INFO L87 Difference]: Start difference. First operand 131 states and 144 transitions. Second operand 12 states. [2020-09-25 02:08:18,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:08:18,977 INFO L93 Difference]: Finished difference Result 302 states and 345 transitions. [2020-09-25 02:08:18,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 02:08:18,978 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-09-25 02:08:18,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:08:18,981 INFO L225 Difference]: With dead ends: 302 [2020-09-25 02:08:18,982 INFO L226 Difference]: Without dead ends: 199 [2020-09-25 02:08:18,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2020-09-25 02:08:18,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-09-25 02:08:19,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 151. [2020-09-25 02:08:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-09-25 02:08:19,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 169 transitions. [2020-09-25 02:08:19,005 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 169 transitions. Word has length 71 [2020-09-25 02:08:19,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:08:19,006 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 169 transitions. [2020-09-25 02:08:19,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 02:08:19,006 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 169 transitions. [2020-09-25 02:08:19,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 02:08:19,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:08:19,010 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:08:19,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:08:19,010 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:08:19,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:08:19,011 INFO L82 PathProgramCache]: Analyzing trace with hash -472966004, now seen corresponding path program 1 times [2020-09-25 02:08:19,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:08:19,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86836839] [2020-09-25 02:08:19,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:08:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:19,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:19,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:19,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:19,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:19,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:19,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:19,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:19,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:19,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:20,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:20,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:20,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:20,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:21,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:21,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:21,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:21,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:21,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:21,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:22,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:22,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:23,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:23,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:23,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:23,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:23,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:24,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:24,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 02:08:24,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-09-25 02:08:24,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 02:08:24,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:08:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:08:24,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 02:08:24,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:08:24,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:08:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:24,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:24,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:24,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:08:24,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:08:24,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:24,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:08:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:24,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:24,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:24,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:08:24,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:08:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 02:08:24,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:08:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:08:24,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 02:08:24,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:08:24,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 02:08:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:24,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:24,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:08:24,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:24,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:08:24,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:24,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:24,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 02:08:24,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:24,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:24,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 02:08:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:24,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:24,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:24,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:08:24,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:08:24,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:08:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:24,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 02:08:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:24,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:24,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:24,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:08:24,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:24,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:08:24,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 02:08:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:24,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 02:08:24,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86836839] [2020-09-25 02:08:24,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:08:24,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 02:08:24,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798362409] [2020-09-25 02:08:24,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:08:24,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:08:24,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:08:24,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:08:24,452 INFO L87 Difference]: Start difference. First operand 151 states and 169 transitions. Second operand 11 states. [2020-09-25 02:08:25,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:08:25,713 INFO L93 Difference]: Finished difference Result 382 states and 429 transitions. [2020-09-25 02:08:25,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 02:08:25,714 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-09-25 02:08:25,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:08:25,716 INFO L225 Difference]: With dead ends: 382 [2020-09-25 02:08:25,717 INFO L226 Difference]: Without dead ends: 244 [2020-09-25 02:08:25,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=247, Invalid=509, Unknown=0, NotChecked=0, Total=756 [2020-09-25 02:08:25,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-09-25 02:08:25,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 161. [2020-09-25 02:08:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-25 02:08:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 176 transitions. [2020-09-25 02:08:25,736 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 176 transitions. Word has length 79 [2020-09-25 02:08:25,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:08:25,737 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 176 transitions. [2020-09-25 02:08:25,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 02:08:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 176 transitions. [2020-09-25 02:08:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 02:08:25,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:08:25,740 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:08:25,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:08:25,740 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:08:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:08:25,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1820928426, now seen corresponding path program 1 times [2020-09-25 02:08:25,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:08:25,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770004462] [2020-09-25 02:08:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:08:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:25,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:25,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:25,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:26,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:26,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:26,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:28,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:29,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:30,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:30,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 02:08:30,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:08:30,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 02:08:30,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:08:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:08:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 02:08:30,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:08:30,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:08:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:30,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:30,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:30,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:08:30,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:08:30,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:30,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:08:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:30,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:30,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:30,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 02:08:30,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:30,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 02:08:30,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:08:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:30,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 02:08:30,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:08:30,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 02:08:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:30,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:31,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:31,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:08:31,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:31,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 02:08:31,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:31,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:08:31,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:08:31,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 02:08:31,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:31,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 02:08:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:31,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:31,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:31,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:08:31,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:31,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:08:31,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:08:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:31,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:31,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-25 02:08:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:31,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:31,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:31,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:08:31,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:31,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:08:31,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 02:08:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 02:08:31,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770004462] [2020-09-25 02:08:31,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:08:31,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 02:08:31,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160616908] [2020-09-25 02:08:31,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 02:08:31,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:08:31,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 02:08:31,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:08:31,186 INFO L87 Difference]: Start difference. First operand 161 states and 176 transitions. Second operand 14 states. [2020-09-25 02:08:32,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:08:32,122 INFO L93 Difference]: Finished difference Result 306 states and 340 transitions. [2020-09-25 02:08:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 02:08:32,122 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-09-25 02:08:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:08:32,126 INFO L225 Difference]: With dead ends: 306 [2020-09-25 02:08:32,126 INFO L226 Difference]: Without dead ends: 220 [2020-09-25 02:08:32,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2020-09-25 02:08:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-25 02:08:32,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 170. [2020-09-25 02:08:32,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 02:08:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 186 transitions. [2020-09-25 02:08:32,143 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 186 transitions. Word has length 80 [2020-09-25 02:08:32,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:08:32,144 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 186 transitions. [2020-09-25 02:08:32,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 02:08:32,144 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 186 transitions. [2020-09-25 02:08:32,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 02:08:32,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:08:32,146 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:08:32,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:08:32,146 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:08:32,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:08:32,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1107353865, now seen corresponding path program 2 times [2020-09-25 02:08:32,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:08:32,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144090346] [2020-09-25 02:08:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:08:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:32,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:32,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:32,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:32,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:33,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:33,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:37,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:37,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 02:08:37,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:08:37,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 02:08:37,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:08:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:08:37,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 02:08:37,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:37,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:08:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:37,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:37,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:37,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:08:37,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:08:37,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:37,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:37,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:08:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:37,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:37,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:37,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:08:37,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 02:08:37,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:37,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:08:37,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:37,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 02:08:37,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:37,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 02:08:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:37,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:37,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:37,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:08:37,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:37,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 02:08:37,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:37,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:08:37,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:08:37,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 02:08:37,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:37,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 02:08:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:37,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:37,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:37,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:08:37,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:37,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:08:37,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:37,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:08:37,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:37,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:37,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 02:08:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:37,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:37,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:37,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:08:37,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:37,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:08:37,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:37,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:37,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 02:08:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:37,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 02:08:37,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144090346] [2020-09-25 02:08:37,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:08:37,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 02:08:37,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879197510] [2020-09-25 02:08:37,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 02:08:37,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:08:37,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 02:08:37,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:08:37,508 INFO L87 Difference]: Start difference. First operand 170 states and 186 transitions. Second operand 14 states. [2020-09-25 02:08:39,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:08:39,219 INFO L93 Difference]: Finished difference Result 372 states and 419 transitions. [2020-09-25 02:08:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 02:08:39,219 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-09-25 02:08:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:08:39,223 INFO L225 Difference]: With dead ends: 372 [2020-09-25 02:08:39,223 INFO L226 Difference]: Without dead ends: 252 [2020-09-25 02:08:39,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 02:08:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-25 02:08:39,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 187. [2020-09-25 02:08:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 02:08:39,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 204 transitions. [2020-09-25 02:08:39,241 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 204 transitions. Word has length 81 [2020-09-25 02:08:39,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:08:39,242 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 204 transitions. [2020-09-25 02:08:39,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 02:08:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 204 transitions. [2020-09-25 02:08:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 02:08:39,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:08:39,244 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:08:39,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 02:08:39,244 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:08:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:08:39,245 INFO L82 PathProgramCache]: Analyzing trace with hash -574415326, now seen corresponding path program 2 times [2020-09-25 02:08:39,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:08:39,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753371681] [2020-09-25 02:08:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:08:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:39,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:39,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:39,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:39,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:39,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:39,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:44,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:44,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 02:08:44,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:08:44,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:08:44,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:08:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 02:08:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 02:08:44,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:44,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:08:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:44,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:44,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:44,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:08:44,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:44,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:08:44,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:44,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:44,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:08:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:44,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:44,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:44,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 02:08:44,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:44,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:08:44,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:44,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:44,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:44,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 02:08:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:44,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:44,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:44,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 02:08:44,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 02:08:44,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:08:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:08:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 02:08:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:44,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 02:08:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:44,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:44,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:44,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:44,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:08:44,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:08:44,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 02:08:44,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:08:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:08:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:08:44,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:44,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-25 02:08:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:44,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:44,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:08:44,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:08:44,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:08:44,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:08:44,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:08:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:08:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 02:08:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:08:44,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:08:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 02:08:44,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753371681] [2020-09-25 02:08:44,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:08:44,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 02:08:44,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779266583] [2020-09-25 02:08:44,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 02:08:44,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:08:44,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 02:08:44,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:08:44,715 INFO L87 Difference]: Start difference. First operand 187 states and 204 transitions. Second operand 15 states. [2020-09-25 02:08:46,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:08:46,069 INFO L93 Difference]: Finished difference Result 341 states and 383 transitions. [2020-09-25 02:08:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 02:08:46,069 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 89 [2020-09-25 02:08:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:08:46,074 INFO L225 Difference]: With dead ends: 341 [2020-09-25 02:08:46,074 INFO L226 Difference]: Without dead ends: 258 [2020-09-25 02:08:46,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2020-09-25 02:08:46,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-25 02:08:46,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 207. [2020-09-25 02:08:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-09-25 02:08:46,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 229 transitions. [2020-09-25 02:08:46,093 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 229 transitions. Word has length 89 [2020-09-25 02:08:46,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:08:46,094 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 229 transitions. [2020-09-25 02:08:46,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 02:08:46,094 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 229 transitions. [2020-09-25 02:08:46,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 02:08:46,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:08:46,096 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:08:46,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 02:08:46,097 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:08:46,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:08:46,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1024568589, now seen corresponding path program 3 times [2020-09-25 02:08:46,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:08:46,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806791769] [2020-09-25 02:08:46,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:08:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:08:46,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:46,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:47,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:48,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:48,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:08:49,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking...