/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:23:50,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:23:50,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:23:50,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:23:50,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:23:50,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:23:50,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:23:50,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:23:50,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:23:50,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:23:50,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:23:50,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:23:50,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:23:50,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:23:50,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:23:50,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:23:50,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:23:50,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:23:50,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:23:50,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:23:50,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:23:50,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:23:50,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:23:50,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:23:50,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:23:50,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:23:50,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:23:50,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:23:50,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:23:50,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:23:50,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:23:50,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:23:50,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:23:50,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:23:50,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:23:50,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:23:50,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:23:50,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:23:50,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:23:50,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:23:50,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:23:50,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:23:50,938 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:23:50,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:23:50,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:23:50,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:23:50,942 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:23:50,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:23:50,942 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:23:50,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:23:50,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:23:50,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:23:50,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:23:50,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:23:50,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:23:50,945 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:23:50,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:23:50,945 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:23:50,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:23:50,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:23:50,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:23:50,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:23:50,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:23:50,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:23:50,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:23:50,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:23:50,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:23:50,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:23:50,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:23:50,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:23:50,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:23:50,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:23:51,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:23:51,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:23:51,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:23:51,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:23:51,486 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:23:51,488 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-25 04:23:51,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea5b2e230/b79dd0d3710240bf92d64296cb3e15b3/FLAGb840fedd9 [2020-09-25 04:23:52,205 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:23:52,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-25 04:23:52,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea5b2e230/b79dd0d3710240bf92d64296cb3e15b3/FLAGb840fedd9 [2020-09-25 04:23:52,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea5b2e230/b79dd0d3710240bf92d64296cb3e15b3 [2020-09-25 04:23:52,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:23:52,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:23:52,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:23:52,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:23:52,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:23:52,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:23:52" (1/1) ... [2020-09-25 04:23:52,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12868582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:52, skipping insertion in model container [2020-09-25 04:23:52,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:23:52" (1/1) ... [2020-09-25 04:23:52,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:23:52,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:23:53,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:23:53,068 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:23:53,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:23:53,192 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:23:53,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53 WrapperNode [2020-09-25 04:23:53,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:23:53,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:23:53,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:23:53,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:23:53,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (1/1) ... [2020-09-25 04:23:53,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (1/1) ... [2020-09-25 04:23:53,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (1/1) ... [2020-09-25 04:23:53,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (1/1) ... [2020-09-25 04:23:53,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (1/1) ... [2020-09-25 04:23:53,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (1/1) ... [2020-09-25 04:23:53,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (1/1) ... [2020-09-25 04:23:53,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:23:53,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:23:53,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:23:53,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:23:53,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:23:53,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:23:53,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:23:53,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:23:53,362 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 04:23:53,362 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 04:23:53,362 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 04:23:53,362 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 04:23:53,364 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 04:23:53,364 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 04:23:53,364 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 04:23:53,364 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 04:23:53,364 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 04:23:53,365 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 04:23:53,365 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 04:23:53,365 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 04:23:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 04:23:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 04:23:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 04:23:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 04:23:53,367 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 04:23:53,367 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 04:23:53,367 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 04:23:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 04:23:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 04:23:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 04:23:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 04:23:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 04:23:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 04:23:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 04:23:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 04:23:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 04:23:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 04:23:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 04:23:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 04:23:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 04:23:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 04:23:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 04:23:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 04:23:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 04:23:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 04:23:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 04:23:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 04:23:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 04:23:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 04:23:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 04:23:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 04:23:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 04:23:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 04:23:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 04:23:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 04:23:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 04:23:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 04:23:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 04:23:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:23:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 04:23:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 04:23:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:23:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 04:23:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 04:23:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 04:23:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 04:23:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 04:23:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:23:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 04:23:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 04:23:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 04:23:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:23:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 04:23:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 04:23:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 04:23:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 04:23:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 04:23:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 04:23:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 04:23:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 04:23:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 04:23:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 04:23:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 04:23:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 04:23:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 04:23:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 04:23:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 04:23:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 04:23:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 04:23:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 04:23:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 04:23:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 04:23:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 04:23:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 04:23:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 04:23:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 04:23:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 04:23:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 04:23:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 04:23:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 04:23:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 04:23:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 04:23:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 04:23:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 04:23:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 04:23:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 04:23:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 04:23:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 04:23:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 04:23:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 04:23:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 04:23:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:23:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:23:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:23:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:23:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:23:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:23:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:23:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:23:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:23:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:23:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:23:54,010 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:23:54,011 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-09-25 04:23:54,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:23:54 BoogieIcfgContainer [2020-09-25 04:23:54,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:23:54,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:23:54,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:23:54,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:23:54,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:23:52" (1/3) ... [2020-09-25 04:23:54,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c143e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:23:54, skipping insertion in model container [2020-09-25 04:23:54,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:53" (2/3) ... [2020-09-25 04:23:54,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c143e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:23:54, skipping insertion in model container [2020-09-25 04:23:54,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:23:54" (3/3) ... [2020-09-25 04:23:54,038 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-09-25 04:23:54,052 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:23:54,064 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-09-25 04:23:54,088 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-25 04:23:54,131 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:23:54,132 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:23:54,132 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:23:54,133 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:23:54,133 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:23:54,133 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:23:54,133 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:23:54,133 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:23:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-09-25 04:23:54,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 04:23:54,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:54,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:54,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:54,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:54,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1523709425, now seen corresponding path program 1 times [2020-09-25 04:23:54,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:54,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404074837] [2020-09-25 04:23:54,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:54,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:55,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:55,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 04:23:55,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:23:55,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-09-25 04:23:55,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:55,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 04:23:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:23:55,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:55,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:55,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:55,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:55,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:55,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 04:23:55,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:55,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:55,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:55,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404074837] [2020-09-25 04:23:55,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:55,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:23:55,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718573329] [2020-09-25 04:23:55,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:23:55,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:55,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:23:55,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:23:55,249 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2020-09-25 04:23:55,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:55,619 INFO L93 Difference]: Finished difference Result 228 states and 286 transitions. [2020-09-25 04:23:55,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:23:55,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 04:23:55,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:55,648 INFO L225 Difference]: With dead ends: 228 [2020-09-25 04:23:55,648 INFO L226 Difference]: Without dead ends: 100 [2020-09-25 04:23:55,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:23:55,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-25 04:23:55,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-09-25 04:23:55,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 04:23:55,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2020-09-25 04:23:55,735 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 23 [2020-09-25 04:23:55,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:55,736 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2020-09-25 04:23:55,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:23:55,736 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-09-25 04:23:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 04:23:55,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:55,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:55,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:23:55,739 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:55,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:55,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1887154194, now seen corresponding path program 1 times [2020-09-25 04:23:55,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:55,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869635903] [2020-09-25 04:23:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:55,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:56,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 04:23:56,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-25 04:23:56,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:56,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:56,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:23:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:23:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:23:56,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:56,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:56,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:56,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:56,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:56,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:23:56,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:56,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:56,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:56,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869635903] [2020-09-25 04:23:56,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:56,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:23:56,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845885191] [2020-09-25 04:23:56,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:23:56,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:56,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:23:56,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:23:56,245 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 8 states. [2020-09-25 04:23:56,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:56,632 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2020-09-25 04:23:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:23:56,633 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-09-25 04:23:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:56,635 INFO L225 Difference]: With dead ends: 121 [2020-09-25 04:23:56,635 INFO L226 Difference]: Without dead ends: 119 [2020-09-25 04:23:56,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:23:56,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-25 04:23:56,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2020-09-25 04:23:56,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 04:23:56,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2020-09-25 04:23:56,647 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 25 [2020-09-25 04:23:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:56,648 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2020-09-25 04:23:56,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:23:56,648 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2020-09-25 04:23:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 04:23:56,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:56,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:56,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:23:56,650 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:56,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:56,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1939387545, now seen corresponding path program 1 times [2020-09-25 04:23:56,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:56,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936647617] [2020-09-25 04:23:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:56,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:56,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:23:56,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:56,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 04:23:56,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:56,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:56,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:23:56,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 04:23:56,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:23:56,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:56,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:56,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:56,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:56,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:56,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:23:56,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:56,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:56,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:56,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:56,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:56,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936647617] [2020-09-25 04:23:56,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:56,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:23:56,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829973613] [2020-09-25 04:23:56,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:23:56,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:56,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:23:56,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:23:56,916 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand 6 states. [2020-09-25 04:23:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:57,167 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2020-09-25 04:23:57,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:23:57,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-09-25 04:23:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:57,169 INFO L225 Difference]: With dead ends: 146 [2020-09-25 04:23:57,169 INFO L226 Difference]: Without dead ends: 143 [2020-09-25 04:23:57,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:23:57,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-25 04:23:57,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2020-09-25 04:23:57,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 04:23:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-09-25 04:23:57,182 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 29 [2020-09-25 04:23:57,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:57,183 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-09-25 04:23:57,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:23:57,183 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-09-25 04:23:57,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 04:23:57,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:57,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:57,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:23:57,185 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:57,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:57,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1026590761, now seen corresponding path program 1 times [2020-09-25 04:23:57,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:57,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480314338] [2020-09-25 04:23:57,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:57,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:57,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:57,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:57,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:23:57,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:23:57,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-09-25 04:23:57,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:57,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:57,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:23:57,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 04:23:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 04:23:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:58,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:58,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:58,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:58,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:23:58,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:58,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:58,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480314338] [2020-09-25 04:23:58,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:58,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:23:58,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599782320] [2020-09-25 04:23:58,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:23:58,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:58,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:23:58,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:23:58,129 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 6 states. [2020-09-25 04:23:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:58,474 INFO L93 Difference]: Finished difference Result 162 states and 169 transitions. [2020-09-25 04:23:58,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:23:58,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 04:23:58,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:58,478 INFO L225 Difference]: With dead ends: 162 [2020-09-25 04:23:58,479 INFO L226 Difference]: Without dead ends: 140 [2020-09-25 04:23:58,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:23:58,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-25 04:23:58,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 112. [2020-09-25 04:23:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-25 04:23:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 116 transitions. [2020-09-25 04:23:58,511 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 116 transitions. Word has length 38 [2020-09-25 04:23:58,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:58,511 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 116 transitions. [2020-09-25 04:23:58,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:23:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-09-25 04:23:58,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 04:23:58,514 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:58,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:58,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:23:58,516 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:58,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:58,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1637573847, now seen corresponding path program 1 times [2020-09-25 04:23:58,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:58,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942513909] [2020-09-25 04:23:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:58,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:23:58,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 04:23:58,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:58,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:23:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 04:23:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:23:58,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:58,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:58,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:58,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:58,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:58,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:23:58,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:58,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:58,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:58,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942513909] [2020-09-25 04:23:58,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:58,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:23:58,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335446670] [2020-09-25 04:23:58,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:23:58,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:58,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:23:58,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:23:58,860 INFO L87 Difference]: Start difference. First operand 112 states and 116 transitions. Second operand 5 states. [2020-09-25 04:23:59,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:59,117 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2020-09-25 04:23:59,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:23:59,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-09-25 04:23:59,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:59,119 INFO L225 Difference]: With dead ends: 117 [2020-09-25 04:23:59,120 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 04:23:59,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:23:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 04:23:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2020-09-25 04:23:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 04:23:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2020-09-25 04:23:59,145 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 38 [2020-09-25 04:23:59,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:59,145 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2020-09-25 04:23:59,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:23:59,146 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2020-09-25 04:23:59,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 04:23:59,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:59,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:59,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:23:59,151 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:59,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:59,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1162057661, now seen corresponding path program 1 times [2020-09-25 04:23:59,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:59,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804587965] [2020-09-25 04:23:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:59,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:59,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:59,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 04:23:59,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:59,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 04:23:59,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:59,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:59,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:23:59,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 04:23:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:23:59,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:59,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:59,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:59,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:59,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:59,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:23:59,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:59,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:59,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804587965] [2020-09-25 04:23:59,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:59,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:23:59,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895530063] [2020-09-25 04:23:59,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:23:59,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:59,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:23:59,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:23:59,586 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand 5 states. [2020-09-25 04:23:59,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:59,806 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-09-25 04:23:59,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:23:59,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-09-25 04:23:59,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:59,808 INFO L225 Difference]: With dead ends: 112 [2020-09-25 04:23:59,808 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 04:23:59,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:23:59,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 04:23:59,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-09-25 04:23:59,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-25 04:23:59,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2020-09-25 04:23:59,821 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 42 [2020-09-25 04:23:59,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:59,821 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 110 transitions. [2020-09-25 04:23:59,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:23:59,821 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 110 transitions. [2020-09-25 04:23:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 04:23:59,825 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:59,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:59,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:23:59,826 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:59,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:59,826 INFO L82 PathProgramCache]: Analyzing trace with hash -41137780, now seen corresponding path program 1 times [2020-09-25 04:23:59,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:59,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084419833] [2020-09-25 04:23:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:59,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:00,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:01,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:01,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:24:01,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1798 [2020-09-25 04:24:01,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:01,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:24:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:01,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 04:24:01,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:01,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:01,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:01,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:01,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:01,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:24:01,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:01,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:01,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:01,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084419833] [2020-09-25 04:24:01,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:01,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 04:24:01,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016646696] [2020-09-25 04:24:01,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 04:24:01,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:01,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 04:24:01,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:24:01,852 INFO L87 Difference]: Start difference. First operand 106 states and 110 transitions. Second operand 13 states. [2020-09-25 04:24:02,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:02,559 INFO L93 Difference]: Finished difference Result 156 states and 163 transitions. [2020-09-25 04:24:02,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:24:02,559 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-25 04:24:02,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:02,562 INFO L225 Difference]: With dead ends: 156 [2020-09-25 04:24:02,562 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 04:24:02,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-09-25 04:24:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 04:24:02,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 132. [2020-09-25 04:24:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-25 04:24:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 138 transitions. [2020-09-25 04:24:02,571 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 138 transitions. Word has length 44 [2020-09-25 04:24:02,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:02,572 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 138 transitions. [2020-09-25 04:24:02,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 04:24:02,572 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 138 transitions. [2020-09-25 04:24:02,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 04:24:02,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:02,574 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 04:24:02,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:24:02,574 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:02,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash 784866741, now seen corresponding path program 1 times [2020-09-25 04:24:02,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:02,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556767968] [2020-09-25 04:24:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:02,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:02,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:04,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:05,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:06,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:07,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:07,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:07,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:07,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 04:24:07,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 04:24:07,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5172 [2020-09-25 04:24:07,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:07,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:07,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:24:07,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:24:07,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:24:07,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:07,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:07,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:07,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:07,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:07,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:07,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:24:07,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:07,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:07,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:07,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:07,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:07,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556767968] [2020-09-25 04:24:07,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:07,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:24:07,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573644107] [2020-09-25 04:24:07,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:24:07,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:07,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:24:07,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:24:07,985 INFO L87 Difference]: Start difference. First operand 132 states and 138 transitions. Second operand 7 states. [2020-09-25 04:24:08,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:08,386 INFO L93 Difference]: Finished difference Result 162 states and 169 transitions. [2020-09-25 04:24:08,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:24:08,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-09-25 04:24:08,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:08,387 INFO L225 Difference]: With dead ends: 162 [2020-09-25 04:24:08,388 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 04:24:08,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:24:08,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 04:24:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 120. [2020-09-25 04:24:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-25 04:24:08,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2020-09-25 04:24:08,398 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 45 [2020-09-25 04:24:08,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:08,399 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2020-09-25 04:24:08,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:24:08,399 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2020-09-25 04:24:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 04:24:08,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:08,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:08,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:24:08,407 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:08,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:08,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1051665877, now seen corresponding path program 1 times [2020-09-25 04:24:08,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:08,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136586472] [2020-09-25 04:24:08,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:08,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:09,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:12,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:12,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 04:24:12,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:24:12,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4212 [2020-09-25 04:24:12,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:12,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:24:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 04:24:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:12,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:12,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:12,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:12,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:12,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:12,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:12,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:12,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:12,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:12,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:12,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:12,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136586472] [2020-09-25 04:24:12,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:12,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:24:12,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726500684] [2020-09-25 04:24:12,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:24:12,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:12,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:24:12,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:24:12,821 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand 10 states. [2020-09-25 04:24:13,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:13,413 INFO L93 Difference]: Finished difference Result 181 states and 188 transitions. [2020-09-25 04:24:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:24:13,414 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-25 04:24:13,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:13,415 INFO L225 Difference]: With dead ends: 181 [2020-09-25 04:24:13,415 INFO L226 Difference]: Without dead ends: 179 [2020-09-25 04:24:13,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:24:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-25 04:24:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 129. [2020-09-25 04:24:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-09-25 04:24:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 134 transitions. [2020-09-25 04:24:13,426 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 134 transitions. Word has length 54 [2020-09-25 04:24:13,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:13,426 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 134 transitions. [2020-09-25 04:24:13,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:24:13,426 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2020-09-25 04:24:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 04:24:13,427 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:13,428 INFO L422 BasicCegarLoop]: trace histogram [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 04:24:13,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:24:13,428 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:13,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:13,429 INFO L82 PathProgramCache]: Analyzing trace with hash 999535374, now seen corresponding path program 1 times [2020-09-25 04:24:13,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:13,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194080761] [2020-09-25 04:24:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:13,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:14,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:14,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 04:24:14,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-25 04:24:14,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:14,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:24:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:24:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 04:24:14,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:15,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:15,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:15,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:15,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:15,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:15,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:15,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194080761] [2020-09-25 04:24:15,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:15,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 04:24:15,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463913057] [2020-09-25 04:24:15,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 04:24:15,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:15,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 04:24:15,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:24:15,165 INFO L87 Difference]: Start difference. First operand 129 states and 134 transitions. Second operand 17 states. [2020-09-25 04:24:16,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:16,765 INFO L93 Difference]: Finished difference Result 218 states and 228 transitions. [2020-09-25 04:24:16,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:24:16,765 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-09-25 04:24:16,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:16,767 INFO L225 Difference]: With dead ends: 218 [2020-09-25 04:24:16,767 INFO L226 Difference]: Without dead ends: 215 [2020-09-25 04:24:16,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-09-25 04:24:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-09-25 04:24:16,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 162. [2020-09-25 04:24:16,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-25 04:24:16,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 169 transitions. [2020-09-25 04:24:16,776 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 169 transitions. Word has length 55 [2020-09-25 04:24:16,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:16,777 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 169 transitions. [2020-09-25 04:24:16,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 04:24:16,777 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 169 transitions. [2020-09-25 04:24:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 04:24:16,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:16,778 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-09-25 04:24:16,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:24:16,778 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:16,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1380187476, now seen corresponding path program 1 times [2020-09-25 04:24:16,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:16,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489024089] [2020-09-25 04:24:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:16,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:18,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:18,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:21,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:21,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 04:24:21,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:24:21,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 04:24:21,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:21,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:24:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 04:24:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:24:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:21,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:21,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:21,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:21,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:21,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:21,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:21,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:21,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:24:21,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489024089] [2020-09-25 04:24:21,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:21,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:24:21,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893651236] [2020-09-25 04:24:21,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:24:21,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:21,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:24:21,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:24:21,970 INFO L87 Difference]: Start difference. First operand 162 states and 169 transitions. Second operand 6 states. [2020-09-25 04:24:22,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:22,242 INFO L93 Difference]: Finished difference Result 190 states and 199 transitions. [2020-09-25 04:24:22,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:24:22,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-09-25 04:24:22,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:22,244 INFO L225 Difference]: With dead ends: 190 [2020-09-25 04:24:22,244 INFO L226 Difference]: Without dead ends: 168 [2020-09-25 04:24:22,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:24:22,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-09-25 04:24:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 165. [2020-09-25 04:24:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 04:24:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 172 transitions. [2020-09-25 04:24:22,257 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 172 transitions. Word has length 64 [2020-09-25 04:24:22,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:22,258 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 172 transitions. [2020-09-25 04:24:22,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:24:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 172 transitions. [2020-09-25 04:24:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 04:24:22,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:22,259 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2020-09-25 04:24:22,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:24:22,259 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:22,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:22,260 INFO L82 PathProgramCache]: Analyzing trace with hash 754417445, now seen corresponding path program 1 times [2020-09-25 04:24:22,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:22,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56221944] [2020-09-25 04:24:22,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:22,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:24,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:24,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:24:24,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:24,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2359 [2020-09-25 04:24:24,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:24,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:24:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:24:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:24:24,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:25,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:25,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:25,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:25,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:25,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:25,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:25,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:25,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:25,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:25,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:25,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56221944] [2020-09-25 04:24:25,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:25,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-25 04:24:25,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350449138] [2020-09-25 04:24:25,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-25 04:24:25,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:25,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-25 04:24:25,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2020-09-25 04:24:25,509 INFO L87 Difference]: Start difference. First operand 165 states and 172 transitions. Second operand 22 states. [2020-09-25 04:24:26,918 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-09-25 04:24:27,057 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2020-09-25 04:24:27,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:27,900 INFO L93 Difference]: Finished difference Result 242 states and 251 transitions. [2020-09-25 04:24:27,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 04:24:27,901 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2020-09-25 04:24:27,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:27,904 INFO L225 Difference]: With dead ends: 242 [2020-09-25 04:24:27,905 INFO L226 Difference]: Without dead ends: 239 [2020-09-25 04:24:27,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=355, Invalid=1451, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 04:24:27,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-25 04:24:27,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 189. [2020-09-25 04:24:27,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 04:24:27,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 197 transitions. [2020-09-25 04:24:27,913 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 197 transitions. Word has length 65 [2020-09-25 04:24:27,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:27,914 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 197 transitions. [2020-09-25 04:24:27,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-25 04:24:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 197 transitions. [2020-09-25 04:24:27,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 04:24:27,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:27,915 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:27,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:24:27,916 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:27,916 INFO L82 PathProgramCache]: Analyzing trace with hash 715756074, now seen corresponding path program 1 times [2020-09-25 04:24:27,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:27,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387081458] [2020-09-25 04:24:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:27,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:28,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:28,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:30,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:31,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:32,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:33,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:33,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:24:33,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:24:33,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5157 [2020-09-25 04:24:33,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:33,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:24:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 04:24:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 04:24:33,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:33,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:33,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:33,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:33,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:33,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:33,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:33,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:33,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:33,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387081458] [2020-09-25 04:24:33,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:33,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 04:24:33,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533359790] [2020-09-25 04:24:33,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 04:24:33,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:33,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 04:24:33,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:24:33,488 INFO L87 Difference]: Start difference. First operand 189 states and 197 transitions. Second operand 16 states. [2020-09-25 04:24:34,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:34,645 INFO L93 Difference]: Finished difference Result 266 states and 277 transitions. [2020-09-25 04:24:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 04:24:34,647 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 04:24:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:34,649 INFO L225 Difference]: With dead ends: 266 [2020-09-25 04:24:34,649 INFO L226 Difference]: Without dead ends: 244 [2020-09-25 04:24:34,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2020-09-25 04:24:34,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-09-25 04:24:34,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 205. [2020-09-25 04:24:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-25 04:24:34,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 213 transitions. [2020-09-25 04:24:34,673 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 213 transitions. Word has length 71 [2020-09-25 04:24:34,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:34,674 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 213 transitions. [2020-09-25 04:24:34,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 04:24:34,674 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 213 transitions. [2020-09-25 04:24:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 04:24:34,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:34,675 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:34,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:24:34,676 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:34,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:34,677 INFO L82 PathProgramCache]: Analyzing trace with hash 181469332, now seen corresponding path program 2 times [2020-09-25 04:24:34,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:34,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30652571] [2020-09-25 04:24:34,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:34,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:34,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:37,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking...