/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=0.8 --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 07:50:01,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:50:01,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:50:01,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:50:01,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:50:01,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:50:01,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:50:01,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:50:01,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:50:01,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:50:01,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:50:01,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:50:01,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:50:01,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:50:01,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:50:01,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:50:01,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:50:01,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:50:01,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:50:01,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:50:01,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:50:01,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:50:01,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:50:01,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:50:01,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:50:01,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:50:01,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:50:01,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:50:01,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:50:01,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:50:01,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:50:01,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:50:01,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:50:01,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:50:01,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:50:01,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:50:01,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:50:01,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:50:01,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:50:01,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:50:01,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:50:01,641 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 07:50:01,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:50:01,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:50:01,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:50:01,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:50:01,668 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:50:01,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:50:01,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:50:01,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:50:01,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:50:01,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:50:01,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:50:01,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:50:01,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:50:01,669 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:50:01,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:50:01,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:50:01,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:50:01,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:50:01,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:50:01,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:50:01,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:50:01,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:50:01,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:50:01,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:50:01,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:50:01,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:50:01,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:50:01,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:50:01,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:50:01,673 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:50:02,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:50:02,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:50:02,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:50:02,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:50:02,214 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:50:02,215 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-25 07:50:02,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f92f75b42/e0908d7104054a3d8f387315ada6ed80/FLAGee62b4d2c [2020-09-25 07:50:02,945 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:50:02,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-25 07:50:02,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f92f75b42/e0908d7104054a3d8f387315ada6ed80/FLAGee62b4d2c [2020-09-25 07:50:03,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f92f75b42/e0908d7104054a3d8f387315ada6ed80 [2020-09-25 07:50:03,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:50:03,259 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:50:03,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:03,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:50:03,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:50:03,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:03" (1/1) ... [2020-09-25 07:50:03,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157ca41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:03, skipping insertion in model container [2020-09-25 07:50:03,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:03" (1/1) ... [2020-09-25 07:50:03,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:50:03,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:50:03,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:03,938 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:50:03,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:04,042 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:50:04,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04 WrapperNode [2020-09-25 07:50:04,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:04,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:50:04,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:50:04,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:50:04,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (1/1) ... [2020-09-25 07:50:04,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (1/1) ... [2020-09-25 07:50:04,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (1/1) ... [2020-09-25 07:50:04,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (1/1) ... [2020-09-25 07:50:04,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (1/1) ... [2020-09-25 07:50:04,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (1/1) ... [2020-09-25 07:50:04,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (1/1) ... [2020-09-25 07:50:04,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:50:04,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:50:04,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:50:04,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:50:04,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:50:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:50:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:50:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:50:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 07:50:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 07:50:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 07:50:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 07:50:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 07:50:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 07:50:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 07:50:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 07:50:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 07:50:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 07:50:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 07:50:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 07:50:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 07:50:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 07:50:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 07:50:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 07:50:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 07:50:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 07:50:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 07:50:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 07:50:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 07:50:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 07:50:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 07:50:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 07:50:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 07:50:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 07:50:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 07:50:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 07:50:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 07:50:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 07:50:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 07:50:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 07:50:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 07:50:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 07:50:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 07:50:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 07:50:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 07:50:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 07:50:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 07:50:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 07:50:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 07:50:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 07:50:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 07:50:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 07:50:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 07:50:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 07:50:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 07:50:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 07:50:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 07:50:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 07:50:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:50:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:50:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:50:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:50:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:50:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 07:50:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:50:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 07:50:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 07:50:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:50:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 07:50:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 07:50:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 07:50:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:50:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 07:50:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 07:50:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 07:50:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 07:50:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 07:50:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 07:50:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 07:50:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 07:50:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 07:50:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 07:50:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 07:50:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 07:50:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 07:50:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 07:50:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 07:50:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 07:50:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 07:50:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 07:50:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 07:50:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 07:50:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 07:50:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 07:50:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 07:50:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 07:50:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 07:50:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 07:50:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:50:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:50:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:50:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:50:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:50:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:50:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:50:04,922 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:50:04,923 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-09-25 07:50:04,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:04 BoogieIcfgContainer [2020-09-25 07:50:04,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:50:04,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:50:04,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:50:04,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:50:04,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:50:03" (1/3) ... [2020-09-25 07:50:04,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6688e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:04, skipping insertion in model container [2020-09-25 07:50:04,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:04" (2/3) ... [2020-09-25 07:50:04,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6688e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:04, skipping insertion in model container [2020-09-25 07:50:04,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:04" (3/3) ... [2020-09-25 07:50:04,953 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-09-25 07:50:04,967 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:50:04,978 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-09-25 07:50:05,004 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-25 07:50:05,045 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:50:05,046 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:50:05,046 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:50:05,046 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:50:05,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:50:05,047 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:50:05,047 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:50:05,048 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:50:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-09-25 07:50:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 07:50:05,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:05,091 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 07:50:05,092 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 07:50:05,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:05,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1523709425, now seen corresponding path program 1 times [2020-09-25 07:50:05,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:05,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23067277] [2020-09-25 07:50:05,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:05,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:05,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:05,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:05,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 07:50:05,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:05,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-09-25 07:50:05,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:05,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:05,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 07:50:05,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:05,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:50:05,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:05,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:06,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:06,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:06,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:06,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:50:06,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:06,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:06,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:06,032 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 07:50:06,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23067277] [2020-09-25 07:50:06,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:06,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:50:06,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366055240] [2020-09-25 07:50:06,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:50:06,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:06,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:50:06,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:50:06,067 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2020-09-25 07:50:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:06,373 INFO L93 Difference]: Finished difference Result 228 states and 286 transitions. [2020-09-25 07:50:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:50:06,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 07:50:06,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:06,391 INFO L225 Difference]: With dead ends: 228 [2020-09-25 07:50:06,391 INFO L226 Difference]: Without dead ends: 100 [2020-09-25 07:50:06,397 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 07:50:06,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-25 07:50:06,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-09-25 07:50:06,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 07:50:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2020-09-25 07:50:06,476 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 23 [2020-09-25 07:50:06,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:06,477 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2020-09-25 07:50:06,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:50:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-09-25 07:50:06,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 07:50:06,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:06,478 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 07:50:06,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:50:06,479 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 07:50:06,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:06,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1887154194, now seen corresponding path program 1 times [2020-09-25 07:50:06,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:06,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191309093] [2020-09-25 07:50:06,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:06,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:06,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:06,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:50:06,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:06,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-25 07:50:06,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:06,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:06,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:50:06,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:06,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 07:50:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:06,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:06,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:06,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:06,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:06,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:50:06,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:06,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:06,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:06,972 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 07:50:06,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191309093] [2020-09-25 07:50:06,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:06,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:50:06,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905137607] [2020-09-25 07:50:06,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:50:06,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:06,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:50:06,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:50:06,979 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 8 states. [2020-09-25 07:50:07,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:07,398 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2020-09-25 07:50:07,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:50:07,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-09-25 07:50:07,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:07,404 INFO L225 Difference]: With dead ends: 121 [2020-09-25 07:50:07,405 INFO L226 Difference]: Without dead ends: 119 [2020-09-25 07:50:07,408 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 07:50:07,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-25 07:50:07,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2020-09-25 07:50:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 07:50:07,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2020-09-25 07:50:07,431 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 25 [2020-09-25 07:50:07,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:07,432 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2020-09-25 07:50:07,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:50:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2020-09-25 07:50:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 07:50:07,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:07,433 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 07:50:07,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:50:07,435 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 07:50:07,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:07,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1939387545, now seen corresponding path program 1 times [2020-09-25 07:50:07,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:07,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132195572] [2020-09-25 07:50:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:07,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:07,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:07,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:50:07,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:07,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 07:50:07,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:07,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:50:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:50:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:50:07,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:07,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:07,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:07,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:07,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:07,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:07,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:50:07,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:07,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:07,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:07,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:07,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:07,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:07,795 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 07:50:07,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132195572] [2020-09-25 07:50:07,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:07,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:50:07,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847581211] [2020-09-25 07:50:07,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:50:07,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:07,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:50:07,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:07,798 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand 6 states. [2020-09-25 07:50:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:08,168 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2020-09-25 07:50:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:50:08,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-09-25 07:50:08,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:08,171 INFO L225 Difference]: With dead ends: 146 [2020-09-25 07:50:08,171 INFO L226 Difference]: Without dead ends: 143 [2020-09-25 07:50:08,173 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 07:50:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-25 07:50:08,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2020-09-25 07:50:08,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 07:50:08,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-09-25 07:50:08,200 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 29 [2020-09-25 07:50:08,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:08,200 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-09-25 07:50:08,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:50:08,201 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-09-25 07:50:08,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 07:50:08,203 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:08,203 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 07:50:08,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:50:08,204 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 07:50:08,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:08,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1026590761, now seen corresponding path program 1 times [2020-09-25 07:50:08,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:08,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353887245] [2020-09-25 07:50:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:08,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:08,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:08,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:08,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 07:50:08,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:08,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 639 [2020-09-25 07:50:08,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:08,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:08,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:50:08,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 07:50:08,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 07:50:08,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:09,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:09,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:50:09,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:09,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:09,036 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 07:50:09,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353887245] [2020-09-25 07:50:09,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:09,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:50:09,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438070365] [2020-09-25 07:50:09,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:50:09,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:09,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:50:09,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:09,040 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 6 states. [2020-09-25 07:50:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:09,299 INFO L93 Difference]: Finished difference Result 162 states and 169 transitions. [2020-09-25 07:50:09,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:50:09,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 07:50:09,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:09,302 INFO L225 Difference]: With dead ends: 162 [2020-09-25 07:50:09,302 INFO L226 Difference]: Without dead ends: 140 [2020-09-25 07:50:09,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 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 07:50:09,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-25 07:50:09,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 112. [2020-09-25 07:50:09,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-25 07:50:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 116 transitions. [2020-09-25 07:50:09,313 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 116 transitions. Word has length 38 [2020-09-25 07:50:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:09,314 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 116 transitions. [2020-09-25 07:50:09,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:50:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-09-25 07:50:09,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 07:50:09,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:09,316 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 07:50:09,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:50:09,316 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 07:50:09,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:09,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1637573847, now seen corresponding path program 1 times [2020-09-25 07:50:09,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:09,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718648617] [2020-09-25 07:50:09,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 07:50:09,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:09,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 07:50:09,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:50:09,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 07:50:09,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:50:09,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:09,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:09,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:09,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:09,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:09,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:09,588 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 07:50:09,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718648617] [2020-09-25 07:50:09,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:09,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:50:09,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175847398] [2020-09-25 07:50:09,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:50:09,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:09,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:50:09,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:50:09,590 INFO L87 Difference]: Start difference. First operand 112 states and 116 transitions. Second operand 5 states. [2020-09-25 07:50:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:09,809 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2020-09-25 07:50:09,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:50:09,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-09-25 07:50:09,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:09,811 INFO L225 Difference]: With dead ends: 117 [2020-09-25 07:50:09,812 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 07:50:09,813 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 07:50:09,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 07:50:09,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2020-09-25 07:50:09,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 07:50:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2020-09-25 07:50:09,822 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 38 [2020-09-25 07:50:09,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:09,822 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2020-09-25 07:50:09,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:50:09,823 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2020-09-25 07:50:09,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 07:50:09,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:09,824 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 07:50:09,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:50:09,825 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 07:50:09,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:09,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1162057661, now seen corresponding path program 1 times [2020-09-25 07:50:09,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:09,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858822503] [2020-09-25 07:50:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:10,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 07:50:10,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:10,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 07:50:10,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:10,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:50:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 07:50:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:50:10,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:10,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:10,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:10,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:10,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:10,162 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 07:50:10,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858822503] [2020-09-25 07:50:10,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:10,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:50:10,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521392353] [2020-09-25 07:50:10,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:50:10,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:10,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:50:10,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:50:10,164 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand 5 states. [2020-09-25 07:50:10,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:10,372 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-09-25 07:50:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:50:10,372 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-09-25 07:50:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:10,374 INFO L225 Difference]: With dead ends: 112 [2020-09-25 07:50:10,374 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 07:50:10,374 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 07:50:10,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 07:50:10,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-09-25 07:50:10,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-25 07:50:10,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2020-09-25 07:50:10,382 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 42 [2020-09-25 07:50:10,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:10,382 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 110 transitions. [2020-09-25 07:50:10,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:50:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 110 transitions. [2020-09-25 07:50:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 07:50:10,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:10,384 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 07:50:10,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:50:10,385 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 07:50:10,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:10,385 INFO L82 PathProgramCache]: Analyzing trace with hash -41137780, now seen corresponding path program 1 times [2020-09-25 07:50:10,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:10,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633837671] [2020-09-25 07:50:10,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:10,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:11,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:11,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 07:50:11,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1562 [2020-09-25 07:50:11,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:11,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:50:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:50:11,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:12,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:12,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:12,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:12,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:12,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:12,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:12,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:12,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:12,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:12,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:12,145 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 07:50:12,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633837671] [2020-09-25 07:50:12,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:12,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 07:50:12,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810607446] [2020-09-25 07:50:12,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 07:50:12,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:12,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 07:50:12,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:50:12,148 INFO L87 Difference]: Start difference. First operand 106 states and 110 transitions. Second operand 13 states. [2020-09-25 07:50:12,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:12,755 INFO L93 Difference]: Finished difference Result 156 states and 163 transitions. [2020-09-25 07:50:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:50:12,755 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-25 07:50:12,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:12,758 INFO L225 Difference]: With dead ends: 156 [2020-09-25 07:50:12,758 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 07:50:12,759 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 07:50:12,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 07:50:12,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 132. [2020-09-25 07:50:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-25 07:50:12,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 138 transitions. [2020-09-25 07:50:12,768 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 138 transitions. Word has length 44 [2020-09-25 07:50:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:12,768 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 138 transitions. [2020-09-25 07:50:12,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 07:50:12,768 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 138 transitions. [2020-09-25 07:50:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 07:50:12,770 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:12,770 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 07:50:12,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:50:12,770 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 07:50:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:12,771 INFO L82 PathProgramCache]: Analyzing trace with hash 784866741, now seen corresponding path program 1 times [2020-09-25 07:50:12,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:12,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270745958] [2020-09-25 07:50:12,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:12,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:13,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:14,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:17,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:17,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:17,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:17,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 07:50:17,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:50:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5115 [2020-09-25 07:50:17,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:17,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:17,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:50:17,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 07:50:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:50:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:50:18,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:18,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:18,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:18,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:18,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:18,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:18,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:18,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:18,026 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 07:50:18,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270745958] [2020-09-25 07:50:18,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:18,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:50:18,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806233172] [2020-09-25 07:50:18,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:50:18,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:18,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:50:18,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:50:18,029 INFO L87 Difference]: Start difference. First operand 132 states and 138 transitions. Second operand 7 states. [2020-09-25 07:50:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:18,414 INFO L93 Difference]: Finished difference Result 162 states and 169 transitions. [2020-09-25 07:50:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:50:18,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-09-25 07:50:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:18,416 INFO L225 Difference]: With dead ends: 162 [2020-09-25 07:50:18,416 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 07:50:18,417 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 07:50:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 07:50:18,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 120. [2020-09-25 07:50:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-25 07:50:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2020-09-25 07:50:18,424 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 45 [2020-09-25 07:50:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:18,424 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2020-09-25 07:50:18,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:50:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2020-09-25 07:50:18,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 07:50:18,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:18,426 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 07:50:18,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:50:18,426 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 07:50:18,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:18,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1051665877, now seen corresponding path program 1 times [2020-09-25 07:50:18,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:18,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894485891] [2020-09-25 07:50:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:18,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:18,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:19,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:22,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:22,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 07:50:22,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:50:22,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3999 [2020-09-25 07:50:22,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:22,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 07:50:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 07:50:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:22,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:22,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:22,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:22,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:22,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:50:22,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:22,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:22,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:22,794 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 07:50:22,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894485891] [2020-09-25 07:50:22,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:22,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-25 07:50:22,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996946636] [2020-09-25 07:50:22,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 07:50:22,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:22,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 07:50:22,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:50:22,802 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand 17 states. [2020-09-25 07:50:23,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:23,758 INFO L93 Difference]: Finished difference Result 136 states and 142 transitions. [2020-09-25 07:50:23,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:50:23,759 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 54 [2020-09-25 07:50:23,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:23,760 INFO L225 Difference]: With dead ends: 136 [2020-09-25 07:50:23,760 INFO L226 Difference]: Without dead ends: 134 [2020-09-25 07:50:23,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=267, Invalid=663, Unknown=0, NotChecked=0, Total=930 [2020-09-25 07:50:23,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-25 07:50:23,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 92. [2020-09-25 07:50:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-25 07:50:23,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions. [2020-09-25 07:50:23,772 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 54 [2020-09-25 07:50:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:23,778 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions. [2020-09-25 07:50:23,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 07:50:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions. [2020-09-25 07:50:23,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 07:50:23,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:23,780 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 07:50:23,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:50:23,780 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 07:50:23,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:23,783 INFO L82 PathProgramCache]: Analyzing trace with hash 999535374, now seen corresponding path program 1 times [2020-09-25 07:50:23,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:23,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487372020] [2020-09-25 07:50:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:23,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:24,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:24,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 07:50:24,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:24,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 927 [2020-09-25 07:50:24,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:24,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:50:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:50:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 07:50:24,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:25,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:25,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:25,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:25,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:25,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:25,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:50:25,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:25,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:25,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:25,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:25,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:25,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:25,231 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 07:50:25,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487372020] [2020-09-25 07:50:25,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:25,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 07:50:25,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837850927] [2020-09-25 07:50:25,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 07:50:25,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:25,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 07:50:25,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:50:25,233 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand 17 states. [2020-09-25 07:50:25,925 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-09-25 07:50:26,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:26,851 INFO L93 Difference]: Finished difference Result 181 states and 189 transitions. [2020-09-25 07:50:26,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:50:26,852 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-09-25 07:50:26,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:26,853 INFO L225 Difference]: With dead ends: 181 [2020-09-25 07:50:26,853 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 07:50:26,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-09-25 07:50:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 07:50:26,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 125. [2020-09-25 07:50:26,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-25 07:50:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2020-09-25 07:50:26,861 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 55 [2020-09-25 07:50:26,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:26,861 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2020-09-25 07:50:26,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 07:50:26,861 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2020-09-25 07:50:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 07:50:26,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:26,863 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 07:50:26,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 07:50:26,863 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 07:50:26,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:26,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1380187476, now seen corresponding path program 1 times [2020-09-25 07:50:26,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:26,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488389872] [2020-09-25 07:50:26,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:26,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:27,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:28,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:28,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 07:50:31,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:31,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 07:50:31,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:50:31,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 07:50:31,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 07:50:31,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:32,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:32,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:32,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:32,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:32,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:32,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:32,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:32,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:32,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:50:32,042 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 07:50:32,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488389872] [2020-09-25 07:50:32,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:32,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:50:32,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812010456] [2020-09-25 07:50:32,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:50:32,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:32,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:50:32,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:32,046 INFO L87 Difference]: Start difference. First operand 125 states and 130 transitions. Second operand 6 states. [2020-09-25 07:50:32,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:32,313 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2020-09-25 07:50:32,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:50:32,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-09-25 07:50:32,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:32,316 INFO L225 Difference]: With dead ends: 153 [2020-09-25 07:50:32,316 INFO L226 Difference]: Without dead ends: 131 [2020-09-25 07:50:32,317 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 07:50:32,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-25 07:50:32,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-09-25 07:50:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 07:50:32,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2020-09-25 07:50:32,324 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 64 [2020-09-25 07:50:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:32,324 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2020-09-25 07:50:32,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:50:32,324 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2020-09-25 07:50:32,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 07:50:32,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:32,326 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 07:50:32,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 07:50:32,326 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 07:50:32,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:32,326 INFO L82 PathProgramCache]: Analyzing trace with hash 754417445, now seen corresponding path program 1 times [2020-09-25 07:50:32,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:32,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804414293] [2020-09-25 07:50:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:32,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:34,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:34,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:50:34,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:34,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2278 [2020-09-25 07:50:34,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:34,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:34,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 07:50:34,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:50:34,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 07:50:34,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:35,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:35,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:35,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:35,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:35,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:50:35,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:35,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:35,537 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 07:50:35,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804414293] [2020-09-25 07:50:35,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:35,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-25 07:50:35,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034186350] [2020-09-25 07:50:35,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-25 07:50:35,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:35,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-25 07:50:35,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2020-09-25 07:50:35,540 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand 22 states. [2020-09-25 07:50:36,875 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-09-25 07:50:37,014 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2020-09-25 07:50:37,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:37,828 INFO L93 Difference]: Finished difference Result 205 states and 212 transitions. [2020-09-25 07:50:37,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 07:50:37,828 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2020-09-25 07:50:37,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:37,830 INFO L225 Difference]: With dead ends: 205 [2020-09-25 07:50:37,830 INFO L226 Difference]: Without dead ends: 202 [2020-09-25 07:50:37,833 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 07:50:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-25 07:50:37,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 140. [2020-09-25 07:50:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-25 07:50:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 145 transitions. [2020-09-25 07:50:37,845 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 145 transitions. Word has length 65 [2020-09-25 07:50:37,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:37,846 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 145 transitions. [2020-09-25 07:50:37,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-25 07:50:37,846 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 145 transitions. [2020-09-25 07:50:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 07:50:37,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:37,847 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 07:50:37,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 07:50:37,848 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 07:50:37,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:37,848 INFO L82 PathProgramCache]: Analyzing trace with hash 715756074, now seen corresponding path program 1 times [2020-09-25 07:50:37,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:37,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862872658] [2020-09-25 07:50:37,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:37,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:40,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:42,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:42,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:42,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 07:50:42,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:50:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:50:42,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:42,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 07:50:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 07:50:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:50:42,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:44,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:44,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:44,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:44,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:44,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:44,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:44,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:44,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:44,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:44,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:44,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:44,159 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 07:50:44,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862872658] [2020-09-25 07:50:44,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:44,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 07:50:44,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114486803] [2020-09-25 07:50:44,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 07:50:44,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:44,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 07:50:44,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-09-25 07:50:44,162 INFO L87 Difference]: Start difference. First operand 140 states and 145 transitions. Second operand 20 states. [2020-09-25 07:50:45,165 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-09-25 07:50:45,308 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2020-09-25 07:50:45,524 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-09-25 07:50:46,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:46,690 INFO L93 Difference]: Finished difference Result 223 states and 232 transitions. [2020-09-25 07:50:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 07:50:46,691 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 71 [2020-09-25 07:50:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:46,693 INFO L225 Difference]: With dead ends: 223 [2020-09-25 07:50:46,693 INFO L226 Difference]: Without dead ends: 201 [2020-09-25 07:50:46,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=257, Invalid=1465, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 07:50:46,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-25 07:50:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 168. [2020-09-25 07:50:46,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-09-25 07:50:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2020-09-25 07:50:46,701 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 71 [2020-09-25 07:50:46,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:46,702 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2020-09-25 07:50:46,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 07:50:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2020-09-25 07:50:46,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 07:50:46,703 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:46,703 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 07:50:46,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 07:50:46,703 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 07:50:46,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:46,704 INFO L82 PathProgramCache]: Analyzing trace with hash 181469332, now seen corresponding path program 2 times [2020-09-25 07:50:46,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:46,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322685247] [2020-09-25 07:50:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:46,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:47,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:47,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:49,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:50,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:51,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:50:51,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:50:51,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-09-25 07:50:51,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:51,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 07:50:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 07:50:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:52,749 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40