/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 SequenceOfStatements --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=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:43:40,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:43:40,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:43:40,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:43:40,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:43:40,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:43:40,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:43:40,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:43:40,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:43:40,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:43:40,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:43:40,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:43:40,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:43:40,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:43:40,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:43:40,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:43:40,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:43:40,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:43:40,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:43:40,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:43:40,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:43:40,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:43:40,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:43:40,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:43:40,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:43:40,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:43:40,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:43:40,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:43:40,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:43:40,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:43:40,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:43:40,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:43:40,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:43:40,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:43:40,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:43:40,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:43:40,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:43:40,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:43:40,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:43:40,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:43:40,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:43:40,292 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 [2020-10-14 08:43:40,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:43:40,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:43:40,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:43:40,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:43:40,332 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:43:40,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:43:40,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:43:40,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:43:40,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:43:40,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:43:40,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:43:40,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:43:40,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:43:40,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:43:40,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:43:40,336 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:43:40,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:43:40,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:43:40,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:43:40,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:43:40,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:43:40,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:43:40,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:43:40,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:43:40,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:43:40,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:43:40,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:43:40,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:43:40,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:43:40,338 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 -> SequenceOfStatements 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:43:40,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:43:40,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:43:40,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:43:40,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:43:40,682 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:43:40,683 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:43:40,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f13a97f8/752775a81635400c82699df8e4c0164f/FLAG784c07c82 [2020-10-14 08:43:41,339 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:43:41,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:43:41,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f13a97f8/752775a81635400c82699df8e4c0164f/FLAG784c07c82 [2020-10-14 08:43:41,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f13a97f8/752775a81635400c82699df8e4c0164f [2020-10-14 08:43:41,605 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:43:41,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:43:41,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:43:41,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:43:41,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:43:41,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:43:41" (1/1) ... [2020-10-14 08:43:41,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f66b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:41, skipping insertion in model container [2020-10-14 08:43:41,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:43:41" (1/1) ... [2020-10-14 08:43:41,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:43:41,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:43:42,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:43:42,493 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:43:42,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:43:42,811 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:43:42,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42 WrapperNode [2020-10-14 08:43:42,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:43:42,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:43:42,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:43:42,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:43:42,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (1/1) ... [2020-10-14 08:43:42,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (1/1) ... [2020-10-14 08:43:42,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (1/1) ... [2020-10-14 08:43:42,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (1/1) ... [2020-10-14 08:43:42,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (1/1) ... [2020-10-14 08:43:43,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (1/1) ... [2020-10-14 08:43:43,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (1/1) ... [2020-10-14 08:43:43,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:43:43,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:43:43,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:43:43,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:43:43,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (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 [2020-10-14 08:43:43,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:43:43,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:43:43,110 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:43:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:43:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:43:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:43:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:43:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:43:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:43:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:43:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:43:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:43:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:43:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:43:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:43:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:43:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:43:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:43:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:43:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:43:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:43:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:43:44,947 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:43:44,948 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:43:44,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:43:44 BoogieIcfgContainer [2020-10-14 08:43:44,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:43:44,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:43:44,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:43:44,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:43:44,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:43:41" (1/3) ... [2020-10-14 08:43:44,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326c49ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:43:44, skipping insertion in model container [2020-10-14 08:43:44,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:43:42" (2/3) ... [2020-10-14 08:43:44,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326c49ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:43:44, skipping insertion in model container [2020-10-14 08:43:44,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:43:44" (3/3) ... [2020-10-14 08:43:44,970 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:43:44,982 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:43:44,995 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-14 08:43:45,029 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-14 08:43:45,087 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:43:45,087 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:43:45,088 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:43:45,088 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:43:45,088 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:43:45,088 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:43:45,088 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:43:45,088 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:43:45,123 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states. [2020-10-14 08:43:45,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 08:43:45,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:45,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:43:45,146 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:45,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:45,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1666706590, now seen corresponding path program 1 times [2020-10-14 08:43:45,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:45,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444290636] [2020-10-14 08:43:45,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:45,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:45,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:45,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:46,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:47,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:47,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:48,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:49,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:50,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:50,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 08:43:50,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:43:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:43:50,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:50,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:50,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:43:50,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:43:50,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:43:50,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:43:50,945 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:50,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:50,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:50,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:50,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:50,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:50,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:43:50,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:50,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:43:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:43:50,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:51,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:51,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444290636] [2020-10-14 08:43:51,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:51,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:43:51,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599108454] [2020-10-14 08:43:51,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:43:51,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:51,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:43:51,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:43:51,042 INFO L87 Difference]: Start difference. First operand 542 states. Second operand 6 states. [2020-10-14 08:43:51,462 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-14 08:43:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:55,955 INFO L93 Difference]: Finished difference Result 1222 states and 2056 transitions. [2020-10-14 08:43:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:43:55,957 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-14 08:43:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:56,008 INFO L225 Difference]: With dead ends: 1222 [2020-10-14 08:43:56,009 INFO L226 Difference]: Without dead ends: 1124 [2020-10-14 08:43:56,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-10-14 08:43:56,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 882. [2020-10-14 08:43:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-10-14 08:43:56,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1177 transitions. [2020-10-14 08:43:56,196 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1177 transitions. Word has length 63 [2020-10-14 08:43:56,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:56,198 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1177 transitions. [2020-10-14 08:43:56,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:43:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1177 transitions. [2020-10-14 08:43:56,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 08:43:56,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:56,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:43:56,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:43:56,215 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:56,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:56,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1660141307, now seen corresponding path program 1 times [2020-10-14 08:43:56,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:56,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673783804] [2020-10-14 08:43:56,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:56,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:56,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:56,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:56,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:56,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:56,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:00,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:01,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:01,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 08:44:01,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:44:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 08:44:01,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:01,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:44:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:01,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 08:44:01,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:44:01,612 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:01,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:01,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:01,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:01,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:01,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 08:44:01,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:01,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:01,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:01,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:01,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:01,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:44:01,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:01,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673783804] [2020-10-14 08:44:01,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:01,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:44:01,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474450798] [2020-10-14 08:44:01,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:44:01,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:01,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:44:01,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:44:01,690 INFO L87 Difference]: Start difference. First operand 882 states and 1177 transitions. Second operand 6 states. [2020-10-14 08:44:01,981 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-14 08:44:04,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:04,274 INFO L93 Difference]: Finished difference Result 1552 states and 2125 transitions. [2020-10-14 08:44:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:44:04,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-14 08:44:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:04,286 INFO L225 Difference]: With dead ends: 1552 [2020-10-14 08:44:04,286 INFO L226 Difference]: Without dead ends: 1100 [2020-10-14 08:44:04,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:44:04,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-10-14 08:44:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1060. [2020-10-14 08:44:04,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-10-14 08:44:04,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1463 transitions. [2020-10-14 08:44:04,344 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1463 transitions. Word has length 63 [2020-10-14 08:44:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:04,344 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1463 transitions. [2020-10-14 08:44:04,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:44:04,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1463 transitions. [2020-10-14 08:44:04,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 08:44:04,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:04,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:44:04,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:44:04,348 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:04,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:04,348 INFO L82 PathProgramCache]: Analyzing trace with hash 377744219, now seen corresponding path program 1 times [2020-10-14 08:44:04,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:04,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201375950] [2020-10-14 08:44:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:04,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:04,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:04,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:04,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:04,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:05,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:05,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:05,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:06,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:06,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:06,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:09,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:09,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 08:44:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:44:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:44:09,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:09,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:44:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:44:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 08:44:09,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:44:09,676 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:09,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:09,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:09,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:09,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:09,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:09,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:44:09,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:09,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:09,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:09,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:09,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:09,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:09,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201375950] [2020-10-14 08:44:09,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:09,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:44:09,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242198136] [2020-10-14 08:44:09,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:44:09,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:09,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:44:09,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:44:09,710 INFO L87 Difference]: Start difference. First operand 1060 states and 1463 transitions. Second operand 6 states. [2020-10-14 08:44:09,974 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-14 08:44:12,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:12,884 INFO L93 Difference]: Finished difference Result 1404 states and 1908 transitions. [2020-10-14 08:44:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:44:12,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-14 08:44:12,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:12,897 INFO L225 Difference]: With dead ends: 1404 [2020-10-14 08:44:12,897 INFO L226 Difference]: Without dead ends: 1389 [2020-10-14 08:44:12,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:12,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2020-10-14 08:44:12,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1058. [2020-10-14 08:44:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1058 states. [2020-10-14 08:44:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1460 transitions. [2020-10-14 08:44:12,963 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1460 transitions. Word has length 63 [2020-10-14 08:44:12,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:12,964 INFO L479 AbstractCegarLoop]: Abstraction has 1058 states and 1460 transitions. [2020-10-14 08:44:12,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:44:12,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1460 transitions. [2020-10-14 08:44:12,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 08:44:12,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:12,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:44:12,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:44:12,968 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:12,969 INFO L82 PathProgramCache]: Analyzing trace with hash 940154528, now seen corresponding path program 1 times [2020-10-14 08:44:12,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:12,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5713217] [2020-10-14 08:44:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:15,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:15,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:15,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:16,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:18,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:18,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 08:44:18,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:44:18,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 08:44:18,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:18,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:44:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:44:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:44:18,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:18,390 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:18,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:18,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:18,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:18,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:18,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:18,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:44:18,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:18,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:18,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:18,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:18,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5713217] [2020-10-14 08:44:18,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:18,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:44:18,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542987189] [2020-10-14 08:44:18,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:44:18,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:18,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:44:18,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:44:18,446 INFO L87 Difference]: Start difference. First operand 1058 states and 1460 transitions. Second operand 6 states. [2020-10-14 08:44:18,730 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-14 08:44:21,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:21,442 INFO L93 Difference]: Finished difference Result 1614 states and 2231 transitions. [2020-10-14 08:44:21,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:44:21,443 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-14 08:44:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:21,450 INFO L225 Difference]: With dead ends: 1614 [2020-10-14 08:44:21,450 INFO L226 Difference]: Without dead ends: 1383 [2020-10-14 08:44:21,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2020-10-14 08:44:21,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1049. [2020-10-14 08:44:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1049 states. [2020-10-14 08:44:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1447 transitions. [2020-10-14 08:44:21,501 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1447 transitions. Word has length 63 [2020-10-14 08:44:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:21,504 INFO L479 AbstractCegarLoop]: Abstraction has 1049 states and 1447 transitions. [2020-10-14 08:44:21,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:44:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1447 transitions. [2020-10-14 08:44:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 08:44:21,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:21,507 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:44:21,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:44:21,508 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:21,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1929658970, now seen corresponding path program 1 times [2020-10-14 08:44:21,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:21,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81735696] [2020-10-14 08:44:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:21,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:23,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:23,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:24,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:24,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:24,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:24,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:24,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:24,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:26,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:26,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:26,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 08:44:26,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:44:26,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:44:26,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:26,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:44:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:44:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:44:26,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:26,841 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:26,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:26,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:26,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:26,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:26,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:26,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:44:26,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:26,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:26,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:26,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:26,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:26,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:44:26,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:26,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81735696] [2020-10-14 08:44:26,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:26,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:44:26,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913027886] [2020-10-14 08:44:26,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:44:26,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:26,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:44:26,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:44:26,877 INFO L87 Difference]: Start difference. First operand 1049 states and 1447 transitions. Second operand 6 states. [2020-10-14 08:44:27,140 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-14 08:44:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:29,537 INFO L93 Difference]: Finished difference Result 3110 states and 4495 transitions. [2020-10-14 08:44:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:44:29,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-14 08:44:29,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:29,550 INFO L225 Difference]: With dead ends: 3110 [2020-10-14 08:44:29,551 INFO L226 Difference]: Without dead ends: 2688 [2020-10-14 08:44:29,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states. [2020-10-14 08:44:29,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 2560. [2020-10-14 08:44:29,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2560 states. [2020-10-14 08:44:29,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3719 transitions. [2020-10-14 08:44:29,671 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3719 transitions. Word has length 63 [2020-10-14 08:44:29,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:29,671 INFO L479 AbstractCegarLoop]: Abstraction has 2560 states and 3719 transitions. [2020-10-14 08:44:29,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:44:29,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3719 transitions. [2020-10-14 08:44:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:44:29,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:29,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:44:29,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:44:29,675 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:29,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:29,675 INFO L82 PathProgramCache]: Analyzing trace with hash 784214765, now seen corresponding path program 1 times [2020-10-14 08:44:29,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:29,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516747546] [2020-10-14 08:44:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:29,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:29,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:29,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:29,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:30,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:30,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:34,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:34,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:44:34,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:44:34,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 08:44:34,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:34,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:44:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:44:34,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:44:35,052 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:35,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:35,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:35,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:35,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:35,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:35,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:44:35,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:35,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:35,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:35,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:35,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:35,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:35,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516747546] [2020-10-14 08:44:35,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:35,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:44:35,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751194419] [2020-10-14 08:44:35,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:44:35,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:35,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:44:35,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:44:35,092 INFO L87 Difference]: Start difference. First operand 2560 states and 3719 transitions. Second operand 7 states. [2020-10-14 08:44:35,422 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-14 08:44:38,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:38,191 INFO L93 Difference]: Finished difference Result 4466 states and 6637 transitions. [2020-10-14 08:44:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:44:38,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-14 08:44:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:38,213 INFO L225 Difference]: With dead ends: 4466 [2020-10-14 08:44:38,213 INFO L226 Difference]: Without dead ends: 4029 [2020-10-14 08:44:38,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:44:38,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2020-10-14 08:44:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 2541. [2020-10-14 08:44:38,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2541 states. [2020-10-14 08:44:38,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3696 transitions. [2020-10-14 08:44:38,372 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3696 transitions. Word has length 64 [2020-10-14 08:44:38,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:38,374 INFO L479 AbstractCegarLoop]: Abstraction has 2541 states and 3696 transitions. [2020-10-14 08:44:38,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:44:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3696 transitions. [2020-10-14 08:44:38,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:44:38,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:38,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:44:38,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:44:38,377 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:38,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:38,378 INFO L82 PathProgramCache]: Analyzing trace with hash 53953382, now seen corresponding path program 1 times [2020-10-14 08:44:38,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:38,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276451217] [2020-10-14 08:44:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:38,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:38,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:38,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:40,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:41,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:42,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:42,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:42,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:43,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:43,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:44:43,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:44:43,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:44:43,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:43,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:44:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:44:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 08:44:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:43,677 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:43,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:43,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:43,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:43,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:43,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:43,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:44:43,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:43,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:43,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:43,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:43,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:43,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:43,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276451217] [2020-10-14 08:44:43,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:43,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:44:43,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558368922] [2020-10-14 08:44:43,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:44:43,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:43,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:44:43,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:44:43,731 INFO L87 Difference]: Start difference. First operand 2541 states and 3696 transitions. Second operand 6 states. [2020-10-14 08:44:43,998 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-14 08:44:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:46,715 INFO L93 Difference]: Finished difference Result 4300 states and 6350 transitions. [2020-10-14 08:44:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:44:46,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-14 08:44:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:46,731 INFO L225 Difference]: With dead ends: 4300 [2020-10-14 08:44:46,732 INFO L226 Difference]: Without dead ends: 3446 [2020-10-14 08:44:46,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2020-10-14 08:44:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 2513. [2020-10-14 08:44:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2513 states. [2020-10-14 08:44:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 3655 transitions. [2020-10-14 08:44:46,868 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 3655 transitions. Word has length 64 [2020-10-14 08:44:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:46,869 INFO L479 AbstractCegarLoop]: Abstraction has 2513 states and 3655 transitions. [2020-10-14 08:44:46,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:44:46,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 3655 transitions. [2020-10-14 08:44:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:44:46,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:46,872 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:44:46,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:44:46,872 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:46,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:46,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1824256589, now seen corresponding path program 1 times [2020-10-14 08:44:46,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:46,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353683996] [2020-10-14 08:44:46,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:46,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:46,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:47,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:47,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:49,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:49,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:49,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:50,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:50,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:51,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:51,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:44:51,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:44:51,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:44:51,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:51,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:44:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:44:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:52,192 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:52,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:52,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:52,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:52,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:52,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:52,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:44:52,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:52,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:52,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:52,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353683996] [2020-10-14 08:44:52,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:52,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:44:52,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112658651] [2020-10-14 08:44:52,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:44:52,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:52,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:44:52,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:44:52,221 INFO L87 Difference]: Start difference. First operand 2513 states and 3655 transitions. Second operand 7 states. [2020-10-14 08:44:52,526 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-14 08:44:55,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:55,286 INFO L93 Difference]: Finished difference Result 5469 states and 8198 transitions. [2020-10-14 08:44:55,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:44:55,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-14 08:44:55,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:55,303 INFO L225 Difference]: With dead ends: 5469 [2020-10-14 08:44:55,303 INFO L226 Difference]: Without dead ends: 4605 [2020-10-14 08:44:55,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:44:55,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2020-10-14 08:44:55,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 2485. [2020-10-14 08:44:55,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2485 states. [2020-10-14 08:44:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3616 transitions. [2020-10-14 08:44:55,449 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3616 transitions. Word has length 64 [2020-10-14 08:44:55,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:55,449 INFO L479 AbstractCegarLoop]: Abstraction has 2485 states and 3616 transitions. [2020-10-14 08:44:55,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:44:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3616 transitions. [2020-10-14 08:44:55,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:44:55,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:55,452 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:44:55,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:44:55,453 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:55,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:55,453 INFO L82 PathProgramCache]: Analyzing trace with hash -512211443, now seen corresponding path program 1 times [2020-10-14 08:44:55,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:55,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912228771] [2020-10-14 08:44:55,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:55,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:55,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:55,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:55,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:55,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:56,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:56,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:56,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:56,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:57,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:57,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:58,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:00,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:45:00,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:45:00,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:45:00,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:00,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:45:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:45:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:00,808 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:00,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:00,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:00,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:00,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:45:00,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:00,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:00,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:00,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912228771] [2020-10-14 08:45:00,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:00,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:45:00,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243723408] [2020-10-14 08:45:00,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:45:00,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:00,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:45:00,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:45:00,835 INFO L87 Difference]: Start difference. First operand 2485 states and 3616 transitions. Second operand 7 states. [2020-10-14 08:45:01,139 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-14 08:45:03,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:03,844 INFO L93 Difference]: Finished difference Result 5413 states and 8136 transitions. [2020-10-14 08:45:03,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:45:03,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-14 08:45:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:03,863 INFO L225 Difference]: With dead ends: 5413 [2020-10-14 08:45:03,863 INFO L226 Difference]: Without dead ends: 4572 [2020-10-14 08:45:03,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:45:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2020-10-14 08:45:04,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 2467. [2020-10-14 08:45:04,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2020-10-14 08:45:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3594 transitions. [2020-10-14 08:45:04,008 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3594 transitions. Word has length 64 [2020-10-14 08:45:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:04,008 INFO L479 AbstractCegarLoop]: Abstraction has 2467 states and 3594 transitions. [2020-10-14 08:45:04,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:45:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3594 transitions. [2020-10-14 08:45:04,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:45:04,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:04,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:45:04,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:45:04,011 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:04,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:04,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1937354705, now seen corresponding path program 1 times [2020-10-14 08:45:04,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:04,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709131568] [2020-10-14 08:45:04,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:04,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:04,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:04,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:04,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:04,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:05,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:06,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:06,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:09,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:09,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:45:09,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:45:09,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:45:09,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:09,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:45:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:45:09,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:09,345 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:09,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:09,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:09,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:09,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:09,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:45:09,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:09,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:09,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709131568] [2020-10-14 08:45:09,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:09,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:45:09,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769660231] [2020-10-14 08:45:09,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:45:09,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:09,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:45:09,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:45:09,373 INFO L87 Difference]: Start difference. First operand 2467 states and 3594 transitions. Second operand 7 states. [2020-10-14 08:45:09,669 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-14 08:45:12,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:12,512 INFO L93 Difference]: Finished difference Result 7529 states and 11426 transitions. [2020-10-14 08:45:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:45:12,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-14 08:45:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:12,540 INFO L225 Difference]: With dead ends: 7529 [2020-10-14 08:45:12,540 INFO L226 Difference]: Without dead ends: 5827 [2020-10-14 08:45:12,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:45:12,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5827 states. [2020-10-14 08:45:12,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5827 to 2442. [2020-10-14 08:45:12,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2442 states. [2020-10-14 08:45:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3559 transitions. [2020-10-14 08:45:12,765 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3559 transitions. Word has length 64 [2020-10-14 08:45:12,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:12,766 INFO L479 AbstractCegarLoop]: Abstraction has 2442 states and 3559 transitions. [2020-10-14 08:45:12,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:45:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3559 transitions. [2020-10-14 08:45:12,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:45:12,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:12,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:45:12,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:45:12,771 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:12,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:12,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1263831154, now seen corresponding path program 1 times [2020-10-14 08:45:12,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:12,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889956718] [2020-10-14 08:45:12,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:12,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:12,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:12,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:13,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:13,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:13,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:13,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:14,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:14,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:15,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:15,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:15,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:16,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:16,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:17,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:17,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:17,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:17,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:17,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:45:17,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:45:17,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:45:17,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:17,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:45:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:45:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 08:45:17,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:18,083 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:18,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:18,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:18,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:18,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:18,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:18,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:45:18,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:18,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:45:18,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:18,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:45:18,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:18,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889956718] [2020-10-14 08:45:18,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:18,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:45:18,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464313690] [2020-10-14 08:45:18,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:45:18,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:18,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:45:18,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:45:18,123 INFO L87 Difference]: Start difference. First operand 2442 states and 3559 transitions. Second operand 6 states. [2020-10-14 08:45:18,415 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-14 08:45:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:19,819 INFO L93 Difference]: Finished difference Result 4165 states and 6205 transitions. [2020-10-14 08:45:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:45:19,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-14 08:45:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:19,833 INFO L225 Difference]: With dead ends: 4165 [2020-10-14 08:45:19,833 INFO L226 Difference]: Without dead ends: 2231 [2020-10-14 08:45:19,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:19,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-10-14 08:45:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2020-10-14 08:45:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-10-14 08:45:19,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 3269 transitions. [2020-10-14 08:45:19,985 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 3269 transitions. Word has length 64 [2020-10-14 08:45:19,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:19,986 INFO L479 AbstractCegarLoop]: Abstraction has 2231 states and 3269 transitions. [2020-10-14 08:45:19,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:45:19,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 3269 transitions. [2020-10-14 08:45:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:45:19,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:19,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:45:19,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:45:19,988 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:19,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:19,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1606107799, now seen corresponding path program 1 times [2020-10-14 08:45:19,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:19,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287186906] [2020-10-14 08:45:19,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:20,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:20,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:20,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:20,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:22,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:25,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:25,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:45:25,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:45:25,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:45:25,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:25,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:25,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:45:25,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:45:25,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:25,315 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:25,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:25,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:25,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:25,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:25,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:25,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:45:25,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:25,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:25,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:25,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:25,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:25,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:25,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287186906] [2020-10-14 08:45:25,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:25,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:45:25,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058512585] [2020-10-14 08:45:25,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:45:25,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:25,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:45:25,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:45:25,346 INFO L87 Difference]: Start difference. First operand 2231 states and 3269 transitions. Second operand 7 states. [2020-10-14 08:45:25,645 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-14 08:45:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:27,674 INFO L93 Difference]: Finished difference Result 5221 states and 7791 transitions. [2020-10-14 08:45:27,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:45:27,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-14 08:45:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:27,685 INFO L225 Difference]: With dead ends: 5221 [2020-10-14 08:45:27,685 INFO L226 Difference]: Without dead ends: 4331 [2020-10-14 08:45:27,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:45:27,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2020-10-14 08:45:27,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 2180. [2020-10-14 08:45:27,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-10-14 08:45:27,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3208 transitions. [2020-10-14 08:45:27,874 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3208 transitions. Word has length 64 [2020-10-14 08:45:27,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:27,874 INFO L479 AbstractCegarLoop]: Abstraction has 2180 states and 3208 transitions. [2020-10-14 08:45:27,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:45:27,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3208 transitions. [2020-10-14 08:45:27,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:45:27,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:27,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:45:27,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:45:27,878 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:27,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:27,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1598011160, now seen corresponding path program 1 times [2020-10-14 08:45:27,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:27,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018269626] [2020-10-14 08:45:27,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:27,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:27,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:29,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:29,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:29,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:29,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:29,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:29,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:30,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:30,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:30,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:30,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:31,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:32,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:32,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:45:32,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-14 08:45:32,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:45:32,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:32,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:45:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:45:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 08:45:32,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:33,177 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:33,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:33,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:33,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:33,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:33,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:33,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:45:33,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:33,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:33,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:33,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:33,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018269626] [2020-10-14 08:45:33,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:33,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:45:33,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568044849] [2020-10-14 08:45:33,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:45:33,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:33,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:45:33,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:45:33,209 INFO L87 Difference]: Start difference. First operand 2180 states and 3208 transitions. Second operand 6 states. [2020-10-14 08:45:33,469 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-14 08:45:35,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:35,755 INFO L93 Difference]: Finished difference Result 3919 states and 5811 transitions. [2020-10-14 08:45:35,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:45:35,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-14 08:45:35,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:35,763 INFO L225 Difference]: With dead ends: 3919 [2020-10-14 08:45:35,763 INFO L226 Difference]: Without dead ends: 3091 [2020-10-14 08:45:35,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:45:35,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2020-10-14 08:45:35,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 2172. [2020-10-14 08:45:35,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2172 states. [2020-10-14 08:45:35,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 3196 transitions. [2020-10-14 08:45:35,934 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 3196 transitions. Word has length 64 [2020-10-14 08:45:35,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:35,935 INFO L479 AbstractCegarLoop]: Abstraction has 2172 states and 3196 transitions. [2020-10-14 08:45:35,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:45:35,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 3196 transitions. [2020-10-14 08:45:35,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:45:35,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:35,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:45:35,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:45:35,937 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:35,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:35,938 INFO L82 PathProgramCache]: Analyzing trace with hash 839514860, now seen corresponding path program 1 times [2020-10-14 08:45:35,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:35,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317807404] [2020-10-14 08:45:35,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:35,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:37,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:37,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:37,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:37,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:38,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:38,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:40,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:45:40,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:41,260 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:41,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:41,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:41,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:41,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:41,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:41,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:45:41,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:41,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:45:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:45:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:41,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317807404] [2020-10-14 08:45:41,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:41,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:45:41,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840121746] [2020-10-14 08:45:41,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:45:41,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:41,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:45:41,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:45:41,302 INFO L87 Difference]: Start difference. First operand 2172 states and 3196 transitions. Second operand 6 states. [2020-10-14 08:45:41,586 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-14 08:45:42,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:42,824 INFO L93 Difference]: Finished difference Result 3049 states and 4511 transitions. [2020-10-14 08:45:42,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:45:42,824 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-14 08:45:42,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:42,829 INFO L225 Difference]: With dead ends: 3049 [2020-10-14 08:45:42,829 INFO L226 Difference]: Without dead ends: 1654 [2020-10-14 08:45:42,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:45:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2020-10-14 08:45:42,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1214. [2020-10-14 08:45:42,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1214 states. [2020-10-14 08:45:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1755 transitions. [2020-10-14 08:45:42,926 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1755 transitions. Word has length 64 [2020-10-14 08:45:42,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:42,927 INFO L479 AbstractCegarLoop]: Abstraction has 1214 states and 1755 transitions. [2020-10-14 08:45:42,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:45:42,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1755 transitions. [2020-10-14 08:45:42,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:45:42,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:42,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:45:42,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:45:42,929 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:42,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:42,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1381325977, now seen corresponding path program 1 times [2020-10-14 08:45:42,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:42,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452359983] [2020-10-14 08:45:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:42,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:43,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:43,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:43,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:43,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:43,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:47,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:45:47,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:45:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:45:47,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:47,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:45:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:45:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:45:47,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:48,307 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:48,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:48,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:48,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:48,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:48,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:48,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:45:48,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:48,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:45:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:45:48,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:48,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:48,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452359983] [2020-10-14 08:45:48,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:48,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:48,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780839235] [2020-10-14 08:45:48,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:45:48,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:48,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:45:48,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:45:48,352 INFO L87 Difference]: Start difference. First operand 1214 states and 1755 transitions. Second operand 10 states. [2020-10-14 08:45:48,663 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-14 08:45:50,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:50,684 INFO L93 Difference]: Finished difference Result 3888 states and 5768 transitions. [2020-10-14 08:45:50,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:45:50,684 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2020-10-14 08:45:50,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:50,691 INFO L225 Difference]: With dead ends: 3888 [2020-10-14 08:45:50,691 INFO L226 Difference]: Without dead ends: 3883 [2020-10-14 08:45:50,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:45:50,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3883 states. [2020-10-14 08:45:50,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3883 to 1214. [2020-10-14 08:45:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1214 states. [2020-10-14 08:45:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1754 transitions. [2020-10-14 08:45:50,818 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1754 transitions. Word has length 65 [2020-10-14 08:45:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:50,818 INFO L479 AbstractCegarLoop]: Abstraction has 1214 states and 1754 transitions. [2020-10-14 08:45:50,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:45:50,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1754 transitions. [2020-10-14 08:45:50,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:45:50,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:50,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:45:50,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:45:50,820 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:50,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1000678244, now seen corresponding path program 1 times [2020-10-14 08:45:50,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:50,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128664086] [2020-10-14 08:45:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:50,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:50,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:51,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:51,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:51,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:51,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:51,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:51,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:51,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:53,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:54,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:54,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:54,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:54,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:55,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:55,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:55,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:45:55,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 08:45:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:45:55,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:55,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:45:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:45:55,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:45:55,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:56,191 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:56,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:56,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:56,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:56,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:56,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:45:56,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:56,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:45:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:45:56,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:56,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128664086] [2020-10-14 08:45:56,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:56,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:56,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068191478] [2020-10-14 08:45:56,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:45:56,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:56,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:45:56,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:45:56,229 INFO L87 Difference]: Start difference. First operand 1214 states and 1754 transitions. Second operand 10 states. [2020-10-14 08:45:56,563 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:45:58,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:58,733 INFO L93 Difference]: Finished difference Result 4705 states and 7024 transitions. [2020-10-14 08:45:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:45:58,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2020-10-14 08:45:58,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:58,738 INFO L225 Difference]: With dead ends: 4705 [2020-10-14 08:45:58,738 INFO L226 Difference]: Without dead ends: 3883 [2020-10-14 08:45:58,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:45:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3883 states. [2020-10-14 08:45:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3883 to 1214. [2020-10-14 08:45:58,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1214 states. [2020-10-14 08:45:58,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1752 transitions. [2020-10-14 08:45:58,891 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1752 transitions. Word has length 65 [2020-10-14 08:45:58,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:58,892 INFO L479 AbstractCegarLoop]: Abstraction has 1214 states and 1752 transitions. [2020-10-14 08:45:58,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:45:58,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1752 transitions. [2020-10-14 08:45:58,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:45:58,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:58,893 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:45:58,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:45:58,893 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:58,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:58,894 INFO L82 PathProgramCache]: Analyzing trace with hash 601863164, now seen corresponding path program 1 times [2020-10-14 08:45:58,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:58,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542027478] [2020-10-14 08:45:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:58,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:58,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:59,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:59,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:59,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:59,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:59,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:59,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:59,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:00,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:00,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:00,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:02,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:03,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:03,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:46:03,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:46:03,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:46:03,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:03,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:46:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:46:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:46:03,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:04,220 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:04,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:04,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:04,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:04,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:04,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:46:04,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:04,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:46:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:04,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:46:04,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:04,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:04,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542027478] [2020-10-14 08:46:04,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:04,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:04,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265250604] [2020-10-14 08:46:04,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:46:04,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:04,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:46:04,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:46:04,260 INFO L87 Difference]: Start difference. First operand 1214 states and 1752 transitions. Second operand 10 states. [2020-10-14 08:46:04,566 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:46:06,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:06,669 INFO L93 Difference]: Finished difference Result 3750 states and 5604 transitions. [2020-10-14 08:46:06,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:46:06,669 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2020-10-14 08:46:06,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:06,672 INFO L225 Difference]: With dead ends: 3750 [2020-10-14 08:46:06,672 INFO L226 Difference]: Without dead ends: 2912 [2020-10-14 08:46:06,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:46:06,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2020-10-14 08:46:06,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 1214. [2020-10-14 08:46:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1214 states. [2020-10-14 08:46:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1750 transitions. [2020-10-14 08:46:06,788 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1750 transitions. Word has length 65 [2020-10-14 08:46:06,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:06,789 INFO L479 AbstractCegarLoop]: Abstraction has 1214 states and 1750 transitions. [2020-10-14 08:46:06,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:46:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1750 transitions. [2020-10-14 08:46:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:46:06,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:06,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:46:06,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:46:06,790 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:06,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:06,791 INFO L82 PathProgramCache]: Analyzing trace with hash -2146673407, now seen corresponding path program 1 times [2020-10-14 08:46:06,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:06,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549077321] [2020-10-14 08:46:06,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:06,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:06,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:06,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:06,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:07,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:07,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:11,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:11,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:46:11,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:46:11,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 08:46:11,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:11,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:46:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 08:46:11,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:12,236 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:12,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:12,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:12,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:12,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:12,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:12,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:46:12,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:12,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:12,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:12,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549077321] [2020-10-14 08:46:12,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:12,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:12,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506840588] [2020-10-14 08:46:12,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:46:12,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:12,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:46:12,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:46:12,267 INFO L87 Difference]: Start difference. First operand 1214 states and 1750 transitions. Second operand 9 states. [2020-10-14 08:46:12,561 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-14 08:46:14,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:14,165 INFO L93 Difference]: Finished difference Result 3684 states and 5532 transitions. [2020-10-14 08:46:14,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:46:14,166 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-14 08:46:14,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:14,170 INFO L225 Difference]: With dead ends: 3684 [2020-10-14 08:46:14,170 INFO L226 Difference]: Without dead ends: 2830 [2020-10-14 08:46:14,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:46:14,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2020-10-14 08:46:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 1174. [2020-10-14 08:46:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-10-14 08:46:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1687 transitions. [2020-10-14 08:46:14,283 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1687 transitions. Word has length 65 [2020-10-14 08:46:14,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:14,283 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1687 transitions. [2020-10-14 08:46:14,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:46:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1687 transitions. [2020-10-14 08:46:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:46:14,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:14,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:46:14,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:46:14,285 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:14,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:14,285 INFO L82 PathProgramCache]: Analyzing trace with hash -594136727, now seen corresponding path program 1 times [2020-10-14 08:46:14,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:14,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969927449] [2020-10-14 08:46:14,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:14,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:14,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:14,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:14,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:14,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:15,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:15,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:15,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:15,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:15,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:16,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:16,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:17,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:19,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:19,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:46:19,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:46:19,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:46:19,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:19,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:46:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 08:46:19,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:19,615 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:19,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:19,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:19,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:19,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:19,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:19,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:46:19,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:19,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:19,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:19,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:19,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969927449] [2020-10-14 08:46:19,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:19,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:46:19,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8293803] [2020-10-14 08:46:19,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:46:19,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:19,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:46:19,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:46:19,652 INFO L87 Difference]: Start difference. First operand 1174 states and 1687 transitions. Second operand 8 states. [2020-10-14 08:46:19,958 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-14 08:46:21,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:21,915 INFO L93 Difference]: Finished difference Result 2879 states and 4266 transitions. [2020-10-14 08:46:21,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:46:21,916 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-14 08:46:21,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:21,918 INFO L225 Difference]: With dead ends: 2879 [2020-10-14 08:46:21,919 INFO L226 Difference]: Without dead ends: 2862 [2020-10-14 08:46:21,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:46:21,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2020-10-14 08:46:22,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 1174. [2020-10-14 08:46:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-10-14 08:46:22,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1685 transitions. [2020-10-14 08:46:22,040 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1685 transitions. Word has length 65 [2020-10-14 08:46:22,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:22,040 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1685 transitions. [2020-10-14 08:46:22,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:46:22,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1685 transitions. [2020-10-14 08:46:22,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:46:22,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:22,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:46:22,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:46:22,041 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:22,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:22,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1581848495, now seen corresponding path program 1 times [2020-10-14 08:46:22,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:22,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173181800] [2020-10-14 08:46:22,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:22,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:22,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:22,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:22,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:22,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:23,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:23,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:23,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:23,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:23,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:24,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:24,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:26,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:27,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:27,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:46:27,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:46:27,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:46:27,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:27,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:46:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:46:27,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:27,359 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:27,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:27,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:27,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:27,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:27,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:27,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:46:27,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:27,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:27,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:27,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:27,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173181800] [2020-10-14 08:46:27,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:27,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:46:27,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589962967] [2020-10-14 08:46:27,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:46:27,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:27,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:46:27,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:46:27,389 INFO L87 Difference]: Start difference. First operand 1174 states and 1685 transitions. Second operand 8 states. [2020-10-14 08:46:27,693 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-14 08:46:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:29,791 INFO L93 Difference]: Finished difference Result 3848 states and 5697 transitions. [2020-10-14 08:46:29,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:46:29,792 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-14 08:46:29,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:29,796 INFO L225 Difference]: With dead ends: 3848 [2020-10-14 08:46:29,796 INFO L226 Difference]: Without dead ends: 3843 [2020-10-14 08:46:29,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:46:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2020-10-14 08:46:29,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 1174. [2020-10-14 08:46:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-10-14 08:46:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1683 transitions. [2020-10-14 08:46:29,918 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1683 transitions. Word has length 65 [2020-10-14 08:46:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:29,918 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1683 transitions. [2020-10-14 08:46:29,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:46:29,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1683 transitions. [2020-10-14 08:46:29,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 08:46:29,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:29,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:46:29,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 08:46:29,919 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:29,920 INFO L82 PathProgramCache]: Analyzing trace with hash 162213069, now seen corresponding path program 1 times [2020-10-14 08:46:29,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:29,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246913771] [2020-10-14 08:46:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:29,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:29,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:30,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:30,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:30,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:30,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:30,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:34,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:34,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 08:46:34,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:46:34,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:46:34,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:34,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:34,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:46:34,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:34,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 08:46:34,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:35,238 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:35,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:35,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:35,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:35,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:35,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:46:35,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:35,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:35,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:35,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:35,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246913771] [2020-10-14 08:46:35,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:35,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:46:35,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991338679] [2020-10-14 08:46:35,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:46:35,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:35,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:46:35,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:46:35,268 INFO L87 Difference]: Start difference. First operand 1174 states and 1683 transitions. Second operand 8 states. [2020-10-14 08:46:35,569 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-14 08:46:37,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:37,471 INFO L93 Difference]: Finished difference Result 3777 states and 5612 transitions. [2020-10-14 08:46:37,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:46:37,471 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-14 08:46:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:37,476 INFO L225 Difference]: With dead ends: 3777 [2020-10-14 08:46:37,476 INFO L226 Difference]: Without dead ends: 2862 [2020-10-14 08:46:37,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:46:37,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2020-10-14 08:46:37,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 1174. [2020-10-14 08:46:37,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-10-14 08:46:37,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1678 transitions. [2020-10-14 08:46:37,599 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1678 transitions. Word has length 66 [2020-10-14 08:46:37,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:37,600 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1678 transitions. [2020-10-14 08:46:37,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:46:37,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1678 transitions. [2020-10-14 08:46:37,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:46:37,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:37,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:46:37,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 08:46:37,601 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:37,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:37,601 INFO L82 PathProgramCache]: Analyzing trace with hash -595661996, now seen corresponding path program 1 times [2020-10-14 08:46:37,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:37,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976253200] [2020-10-14 08:46:37,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:37,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:37,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:37,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:38,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:38,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:38,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:38,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:38,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:38,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:38,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:39,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:39,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:39,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:39,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:40,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:40,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:40,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:41,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:41,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:42,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:42,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:46:42,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-14 08:46:42,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:46:42,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:42,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:46:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:46:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:46:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:42,956 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:42,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:42,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:42,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:42,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:42,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:42,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:46:42,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:42,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:46:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:46:42,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:42,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976253200] [2020-10-14 08:46:42,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:42,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:42,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792753258] [2020-10-14 08:46:42,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:46:42,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:42,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:46:42,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:46:42,994 INFO L87 Difference]: Start difference. First operand 1174 states and 1678 transitions. Second operand 10 states. [2020-10-14 08:46:43,297 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-14 08:46:45,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:45,474 INFO L93 Difference]: Finished difference Result 5300 states and 7995 transitions. [2020-10-14 08:46:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:46:45,476 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-10-14 08:46:45,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:45,480 INFO L225 Difference]: With dead ends: 5300 [2020-10-14 08:46:45,481 INFO L226 Difference]: Without dead ends: 4474 [2020-10-14 08:46:45,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:46:45,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2020-10-14 08:46:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 1174. [2020-10-14 08:46:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-10-14 08:46:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1677 transitions. [2020-10-14 08:46:45,617 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1677 transitions. Word has length 67 [2020-10-14 08:46:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:45,617 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1677 transitions. [2020-10-14 08:46:45,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:46:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1677 transitions. [2020-10-14 08:46:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:46:45,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:45,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:46:45,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 08:46:45,618 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:45,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:45,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1203391707, now seen corresponding path program 1 times [2020-10-14 08:46:45,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:45,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951592696] [2020-10-14 08:46:45,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:45,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:45,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:45,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:45,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:46,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:49,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:49,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:49,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:49,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:50,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:50,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:50,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:50,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:50,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:50,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:46:50,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:46:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 08:46:50,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:50,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:46:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:46:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:46:50,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:50,965 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:50,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:50,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:50,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:50,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:50,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:50,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:46:50,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:50,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:46:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:46:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:51,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951592696] [2020-10-14 08:46:51,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:51,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:51,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809678236] [2020-10-14 08:46:51,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:46:51,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:51,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:46:51,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:46:51,007 INFO L87 Difference]: Start difference. First operand 1174 states and 1677 transitions. Second operand 10 states. [2020-10-14 08:46:51,352 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:46:54,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:54,088 INFO L93 Difference]: Finished difference Result 4659 states and 6940 transitions. [2020-10-14 08:46:54,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:46:54,088 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-10-14 08:46:54,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:54,092 INFO L225 Difference]: With dead ends: 4659 [2020-10-14 08:46:54,092 INFO L226 Difference]: Without dead ends: 3843 [2020-10-14 08:46:54,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:46:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2020-10-14 08:46:54,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 1174. [2020-10-14 08:46:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-10-14 08:46:54,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1676 transitions. [2020-10-14 08:46:54,233 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1676 transitions. Word has length 67 [2020-10-14 08:46:54,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:54,234 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1676 transitions. [2020-10-14 08:46:54,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:46:54,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1676 transitions. [2020-10-14 08:46:54,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:46:54,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:54,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:46:54,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 08:46:54,235 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:54,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:54,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2022365079, now seen corresponding path program 1 times [2020-10-14 08:46:54,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:54,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029338519] [2020-10-14 08:46:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:54,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:54,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:54,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:54,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:55,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:55,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:55,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:55,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:55,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:57,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:57,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:57,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:58,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:58,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:58,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:58,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:59,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:59,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:46:59,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:46:59,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:46:59,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:59,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:59,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:46:59,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:59,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:46:59,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:59,615 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:59,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:59,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:59,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:59,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:59,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:46:59,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:59,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:59,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029338519] [2020-10-14 08:46:59,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:59,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:59,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412234478] [2020-10-14 08:46:59,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:46:59,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:59,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:46:59,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:46:59,647 INFO L87 Difference]: Start difference. First operand 1174 states and 1676 transitions. Second operand 9 states. [2020-10-14 08:46:59,935 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-14 08:47:01,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:01,701 INFO L93 Difference]: Finished difference Result 2959 states and 4360 transitions. [2020-10-14 08:47:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:47:01,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 08:47:01,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:01,704 INFO L225 Difference]: With dead ends: 2959 [2020-10-14 08:47:01,704 INFO L226 Difference]: Without dead ends: 2139 [2020-10-14 08:47:01,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:47:01,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2020-10-14 08:47:01,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1162. [2020-10-14 08:47:01,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1162 states. [2020-10-14 08:47:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1659 transitions. [2020-10-14 08:47:01,848 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1659 transitions. Word has length 67 [2020-10-14 08:47:01,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:01,849 INFO L479 AbstractCegarLoop]: Abstraction has 1162 states and 1659 transitions. [2020-10-14 08:47:01,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:47:01,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1659 transitions. [2020-10-14 08:47:01,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:47:01,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:01,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:47:01,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 08:47:01,850 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:47:01,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:01,850 INFO L82 PathProgramCache]: Analyzing trace with hash -94579521, now seen corresponding path program 1 times [2020-10-14 08:47:01,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:01,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662181541] [2020-10-14 08:47:01,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:01,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:01,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:02,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:02,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:02,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:02,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:03,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:03,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:03,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:03,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:06,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:06,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:47:06,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:47:06,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:47:06,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:06,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:06,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:47:06,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:47:06,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 08:47:06,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:07,197 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:47:07,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:07,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:07,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:07,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:07,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:47:07,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:07,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:07,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:47:07,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:07,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:47:07,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:07,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662181541] [2020-10-14 08:47:07,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:07,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:47:07,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023227041] [2020-10-14 08:47:07,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:47:07,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:07,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:47:07,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:47:07,237 INFO L87 Difference]: Start difference. First operand 1162 states and 1659 transitions. Second operand 10 states. [2020-10-14 08:47:07,552 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-14 08:47:09,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:09,474 INFO L93 Difference]: Finished difference Result 2500 states and 3667 transitions. [2020-10-14 08:47:09,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:47:09,474 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-10-14 08:47:09,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:09,477 INFO L225 Difference]: With dead ends: 2500 [2020-10-14 08:47:09,478 INFO L226 Difference]: Without dead ends: 1598 [2020-10-14 08:47:09,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:47:09,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2020-10-14 08:47:09,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 710. [2020-10-14 08:47:09,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2020-10-14 08:47:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 980 transitions. [2020-10-14 08:47:09,561 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 980 transitions. Word has length 67 [2020-10-14 08:47:09,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:09,561 INFO L479 AbstractCegarLoop]: Abstraction has 710 states and 980 transitions. [2020-10-14 08:47:09,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:47:09,562 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 980 transitions. [2020-10-14 08:47:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:47:09,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:09,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:47:09,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 08:47:09,562 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:47:09,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:09,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1641387676, now seen corresponding path program 1 times [2020-10-14 08:47:09,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:09,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065921324] [2020-10-14 08:47:09,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:09,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:09,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:09,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:10,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:10,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:10,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:11,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:11,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:11,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:12,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:12,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:12,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:12,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:13,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:14,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:14,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:47:14,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:47:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:47:14,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:14,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:47:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:47:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:47:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:14,930 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:47:14,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:14,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:14,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:14,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:14,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:14,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:47:14,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:14,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:47:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:47:14,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:14,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065921324] [2020-10-14 08:47:14,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:14,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:47:14,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59401470] [2020-10-14 08:47:14,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:47:14,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:14,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:47:14,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:47:14,962 INFO L87 Difference]: Start difference. First operand 710 states and 980 transitions. Second operand 9 states. [2020-10-14 08:47:15,261 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-14 08:47:16,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:16,892 INFO L93 Difference]: Finished difference Result 1247 states and 1751 transitions. [2020-10-14 08:47:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:47:16,892 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 08:47:16,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:16,894 INFO L225 Difference]: With dead ends: 1247 [2020-10-14 08:47:16,894 INFO L226 Difference]: Without dead ends: 1243 [2020-10-14 08:47:16,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:47:16,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2020-10-14 08:47:16,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 706. [2020-10-14 08:47:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-14 08:47:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 976 transitions. [2020-10-14 08:47:16,972 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 976 transitions. Word has length 67 [2020-10-14 08:47:16,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:16,972 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 976 transitions. [2020-10-14 08:47:16,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:47:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 976 transitions. [2020-10-14 08:47:16,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:47:16,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:16,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:47:16,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 08:47:16,973 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:47:16,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:16,974 INFO L82 PathProgramCache]: Analyzing trace with hash -805860749, now seen corresponding path program 1 times [2020-10-14 08:47:16,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:16,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670486907] [2020-10-14 08:47:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:17,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:17,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:17,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:17,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:18,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:18,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:20,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:20,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:20,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:20,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:20,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:20,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:21,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:21,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:21,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:21,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:21,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:22,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:22,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:22,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:47:22,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:47:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 08:47:22,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:22,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:47:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:47:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:47:22,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:22,336 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:47:22,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:22,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:22,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:22,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:22,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:22,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:47:22,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:22,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:47:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:47:22,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:22,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670486907] [2020-10-14 08:47:22,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:22,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:47:22,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928309238] [2020-10-14 08:47:22,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:47:22,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:22,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:47:22,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:47:22,363 INFO L87 Difference]: Start difference. First operand 706 states and 976 transitions. Second operand 9 states. [2020-10-14 08:47:22,645 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-14 08:47:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:24,323 INFO L93 Difference]: Finished difference Result 1653 states and 2375 transitions. [2020-10-14 08:47:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:47:24,324 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 08:47:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:24,326 INFO L225 Difference]: With dead ends: 1653 [2020-10-14 08:47:24,326 INFO L226 Difference]: Without dead ends: 1241 [2020-10-14 08:47:24,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:47:24,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-10-14 08:47:24,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 696. [2020-10-14 08:47:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2020-10-14 08:47:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 961 transitions. [2020-10-14 08:47:24,416 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 961 transitions. Word has length 67 [2020-10-14 08:47:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:24,416 INFO L479 AbstractCegarLoop]: Abstraction has 696 states and 961 transitions. [2020-10-14 08:47:24,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:47:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 961 transitions. [2020-10-14 08:47:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:47:24,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:24,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:47:24,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 08:47:24,417 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:47:24,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:24,418 INFO L82 PathProgramCache]: Analyzing trace with hash -849891828, now seen corresponding path program 1 times [2020-10-14 08:47:24,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:24,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396481822] [2020-10-14 08:47:24,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:24,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:24,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:24,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:25,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:25,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:27,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:28,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:29,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:29,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:47:29,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:47:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:47:29,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:29,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:47:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:47:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:47:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:29,752 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:47:29,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:29,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:29,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:29,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:29,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:47:29,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:29,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:47:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:47:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:29,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396481822] [2020-10-14 08:47:29,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:29,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:47:29,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920002126] [2020-10-14 08:47:29,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:47:29,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:29,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:47:29,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:47:29,780 INFO L87 Difference]: Start difference. First operand 696 states and 961 transitions. Second operand 9 states. [2020-10-14 08:47:30,053 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-14 08:47:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:31,333 INFO L93 Difference]: Finished difference Result 926 states and 1299 transitions. [2020-10-14 08:47:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:47:31,333 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 08:47:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:31,335 INFO L225 Difference]: With dead ends: 926 [2020-10-14 08:47:31,335 INFO L226 Difference]: Without dead ends: 916 [2020-10-14 08:47:31,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:47:31,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-10-14 08:47:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 686. [2020-10-14 08:47:31,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2020-10-14 08:47:31,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 950 transitions. [2020-10-14 08:47:31,419 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 950 transitions. Word has length 67 [2020-10-14 08:47:31,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:31,419 INFO L479 AbstractCegarLoop]: Abstraction has 686 states and 950 transitions. [2020-10-14 08:47:31,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:47:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 950 transitions. [2020-10-14 08:47:31,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:47:31,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:31,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:47:31,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 08:47:31,421 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:47:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:31,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1597864088, now seen corresponding path program 1 times [2020-10-14 08:47:31,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:31,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392936627] [2020-10-14 08:47:31,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:31,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:31,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:31,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:31,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:31,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:32,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:32,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:32,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:33,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:33,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:33,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:34,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:34,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:34,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:36,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:36,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:36,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:47:36,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:47:36,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:47:36,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:36,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:47:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:47:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:47:36,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:36,822 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:47:36,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:36,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:36,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:36,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:36,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:36,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:47:36,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:36,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:47:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:47:36,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:36,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:36,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392936627] [2020-10-14 08:47:36,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:36,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:47:36,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111661385] [2020-10-14 08:47:36,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:47:36,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:36,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:47:36,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:47:36,861 INFO L87 Difference]: Start difference. First operand 686 states and 950 transitions. Second operand 9 states. [2020-10-14 08:47:37,159 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 207