/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:18:38,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:18:38,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:18:38,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:18:38,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:18:38,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:18:38,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:18:38,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:18:38,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:18:38,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:18:38,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:18:38,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:18:38,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:18:38,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:18:38,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:18:38,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:18:38,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:18:38,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:18:38,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:18:38,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:18:38,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:18:38,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:18:38,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:18:38,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:18:38,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:18:38,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:18:38,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:18:38,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:18:38,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:18:38,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:18:38,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:18:38,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:18:38,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:18:38,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:18:38,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:18:38,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:18:38,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:18:38,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:18:38,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:18:38,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:18:38,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:18:38,400 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 [2020-10-15 03:18:38,423 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:18:38,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:18:38,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:18:38,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:18:38,425 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:18:38,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:18:38,425 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:18:38,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:18:38,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:18:38,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:18:38,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:18:38,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:18:38,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:18:38,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:18:38,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:18:38,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:18:38,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:18:38,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:18:38,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:18:38,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:18:38,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:18:38,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:18:38,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:18:38,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:18:38,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:18:38,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:18:38,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:18:38,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:18:38,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:18:38,430 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:18:38,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:18:38,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:18:38,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:18:38,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:18:38,800 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:18:38,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:18:38,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231cf1328/daf56475fbd14ea39f362e34cea748de/FLAG00141b685 [2020-10-15 03:18:39,512 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:18:39,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:18:39,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231cf1328/daf56475fbd14ea39f362e34cea748de/FLAG00141b685 [2020-10-15 03:18:39,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231cf1328/daf56475fbd14ea39f362e34cea748de [2020-10-15 03:18:39,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:18:39,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:18:39,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:18:39,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:18:39,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:18:39,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:39" (1/1) ... [2020-10-15 03:18:39,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752aa8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:39, skipping insertion in model container [2020-10-15 03:18:39,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:39" (1/1) ... [2020-10-15 03:18:39,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:18:39,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:18:40,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:18:40,595 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:18:40,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:18:41,020 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:18:41,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41 WrapperNode [2020-10-15 03:18:41,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:18:41,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:18:41,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:18:41,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:18:41,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (1/1) ... [2020-10-15 03:18:41,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (1/1) ... [2020-10-15 03:18:41,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (1/1) ... [2020-10-15 03:18:41,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (1/1) ... [2020-10-15 03:18:41,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (1/1) ... [2020-10-15 03:18:41,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (1/1) ... [2020-10-15 03:18:41,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (1/1) ... [2020-10-15 03:18:41,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:18:41,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:18:41,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:18:41,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:18:41,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (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 [2020-10-15 03:18:41,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:18:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:18:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:18:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:18:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:18:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:18:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:18:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:18:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:18:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:18:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:18:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:18:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:18:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:18:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:18:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:18:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:18:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:18:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:18:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:18:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:18:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:18:43,022 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:18:43,022 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:18:43,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:43 BoogieIcfgContainer [2020-10-15 03:18:43,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:18:43,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:18:43,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:18:43,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:18:43,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:18:39" (1/3) ... [2020-10-15 03:18:43,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fcdea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:43, skipping insertion in model container [2020-10-15 03:18:43,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:41" (2/3) ... [2020-10-15 03:18:43,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fcdea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:43, skipping insertion in model container [2020-10-15 03:18:43,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:43" (3/3) ... [2020-10-15 03:18:43,039 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:18:43,051 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:18:43,060 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-15 03:18:43,076 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-15 03:18:43,105 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:18:43,105 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:18:43,105 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:18:43,105 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:18:43,105 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:18:43,105 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:18:43,106 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:18:43,106 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:18:43,135 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 03:18:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-15 03:18:43,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:43,153 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] [2020-10-15 03:18:43,154 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]=== [2020-10-15 03:18:43,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:43,160 INFO L82 PathProgramCache]: Analyzing trace with hash -724467118, now seen corresponding path program 1 times [2020-10-15 03:18:43,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:43,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538383982] [2020-10-15 03:18:43,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:43,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:43,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:44,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:44,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:44,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:45,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:45,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:45,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:46,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:47,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:48,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:48,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 03:18:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:18:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:18:48,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:48,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:18:48,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:18:48,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 03:18:48,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:18:49,113 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:18:49,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:49,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:49,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:49,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:49,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:49,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:18:49,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:49,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:18:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:18:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:49,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538383982] [2020-10-15 03:18:49,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:49,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:18:49,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130999777] [2020-10-15 03:18:49,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:18:49,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:49,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:18:49,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:18:49,276 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 8 states. [2020-10-15 03:18:49,699 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 03:18:53,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:18:53,647 INFO L93 Difference]: Finished difference Result 1172 states and 1887 transitions. [2020-10-15 03:18:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 03:18:53,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-10-15 03:18:53,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:18:53,685 INFO L225 Difference]: With dead ends: 1172 [2020-10-15 03:18:53,685 INFO L226 Difference]: Without dead ends: 1008 [2020-10-15 03:18:53,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-15 03:18:53,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2020-10-15 03:18:53,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 434. [2020-10-15 03:18:53,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-15 03:18:53,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 551 transitions. [2020-10-15 03:18:53,811 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 551 transitions. Word has length 62 [2020-10-15 03:18:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:18:53,812 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 551 transitions. [2020-10-15 03:18:53,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:18:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 551 transitions. [2020-10-15 03:18:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-15 03:18:53,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:53,817 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] [2020-10-15 03:18:53,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:18:53,818 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]=== [2020-10-15 03:18:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:53,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1172650911, now seen corresponding path program 1 times [2020-10-15 03:18:53,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:53,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248687011] [2020-10-15 03:18:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:53,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:53,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:53,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:57,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:57,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:58,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:58,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:58,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:58,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:58,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:58,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 03:18:58,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:18:58,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:18:58,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:58,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 03:18:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:18:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 03:18:58,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:59,341 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:18:59,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:59,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:59,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:59,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:59,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 03:18:59,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:59,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:18:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:18:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:59,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248687011] [2020-10-15 03:18:59,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:59,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 03:18:59,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794448561] [2020-10-15 03:18:59,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 03:18:59,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:59,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 03:18:59,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:18:59,455 INFO L87 Difference]: Start difference. First operand 434 states and 551 transitions. Second operand 10 states. [2020-10-15 03:18:59,883 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-15 03:19:03,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:03,357 INFO L93 Difference]: Finished difference Result 920 states and 1250 transitions. [2020-10-15 03:19:03,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 03:19:03,358 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-10-15 03:19:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:03,364 INFO L225 Difference]: With dead ends: 920 [2020-10-15 03:19:03,364 INFO L226 Difference]: Without dead ends: 798 [2020-10-15 03:19:03,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2020-10-15 03:19:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-15 03:19:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 462. [2020-10-15 03:19:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-15 03:19:03,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 589 transitions. [2020-10-15 03:19:03,404 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 589 transitions. Word has length 62 [2020-10-15 03:19:03,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:03,405 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 589 transitions. [2020-10-15 03:19:03,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 03:19:03,405 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 589 transitions. [2020-10-15 03:19:03,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-15 03:19:03,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:03,408 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] [2020-10-15 03:19:03,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:19:03,409 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]=== [2020-10-15 03:19:03,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:03,409 INFO L82 PathProgramCache]: Analyzing trace with hash -383651320, now seen corresponding path program 1 times [2020-10-15 03:19:03,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:03,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431366210] [2020-10-15 03:19:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:03,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:03,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:03,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:03,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:04,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:04,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:04,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:04,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:05,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:05,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:06,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:07,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:08,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:08,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 03:19:08,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:19:08,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 03:19:08,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:08,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:08,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:19:08,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:19:08,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 03:19:08,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:08,759 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:08,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:08,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:08,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:08,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:08,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:08,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:19:08,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:08,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:08,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:08,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:08,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431366210] [2020-10-15 03:19:08,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:08,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:19:08,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779724251] [2020-10-15 03:19:08,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:19:08,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:08,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:19:08,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:19:08,797 INFO L87 Difference]: Start difference. First operand 462 states and 589 transitions. Second operand 6 states. [2020-10-15 03:19:09,097 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-15 03:19:12,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:12,039 INFO L93 Difference]: Finished difference Result 1559 states and 2177 transitions. [2020-10-15 03:19:12,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:19:12,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-15 03:19:12,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:12,054 INFO L225 Difference]: With dead ends: 1559 [2020-10-15 03:19:12,055 INFO L226 Difference]: Without dead ends: 1383 [2020-10-15 03:19:12,060 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 [2020-10-15 03:19:12,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2020-10-15 03:19:12,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 942. [2020-10-15 03:19:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-15 03:19:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1312 transitions. [2020-10-15 03:19:12,137 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1312 transitions. Word has length 62 [2020-10-15 03:19:12,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:12,138 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1312 transitions. [2020-10-15 03:19:12,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:19:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1312 transitions. [2020-10-15 03:19:12,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:19:12,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:12,154 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] [2020-10-15 03:19:12,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:19:12,154 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]=== [2020-10-15 03:19:12,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:12,155 INFO L82 PathProgramCache]: Analyzing trace with hash 669855701, now seen corresponding path program 1 times [2020-10-15 03:19:12,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:12,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050367402] [2020-10-15 03:19:12,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:12,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:15,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:15,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:17,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:17,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:19:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:19:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:19:17,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:17,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:19:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:19:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 03:19:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:17,553 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:17,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:17,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:17,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:17,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:17,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:17,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 03:19:17,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:17,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:19:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:19:17,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:17,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050367402] [2020-10-15 03:19:17,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:17,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:19:17,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800142318] [2020-10-15 03:19:17,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:19:17,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:17,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:19:17,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:19:17,621 INFO L87 Difference]: Start difference. First operand 942 states and 1312 transitions. Second operand 6 states. [2020-10-15 03:19:17,876 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 03:19:19,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:19,225 INFO L93 Difference]: Finished difference Result 1231 states and 1712 transitions. [2020-10-15 03:19:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:19:19,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-15 03:19:19,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:19,231 INFO L225 Difference]: With dead ends: 1231 [2020-10-15 03:19:19,232 INFO L226 Difference]: Without dead ends: 684 [2020-10-15 03:19:19,234 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 [2020-10-15 03:19:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2020-10-15 03:19:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 539. [2020-10-15 03:19:19,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-15 03:19:19,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 733 transitions. [2020-10-15 03:19:19,274 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 733 transitions. Word has length 63 [2020-10-15 03:19:19,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:19,274 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 733 transitions. [2020-10-15 03:19:19,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:19:19,274 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 733 transitions. [2020-10-15 03:19:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:19:19,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:19,278 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] [2020-10-15 03:19:19,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:19:19,279 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]=== [2020-10-15 03:19:19,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:19,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1025505315, now seen corresponding path program 1 times [2020-10-15 03:19:19,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:19,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751798062] [2020-10-15 03:19:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:19,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:19,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:19,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:19,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:20,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:20,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:20,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:20,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:20,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:20,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:21,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:21,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:21,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:21,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:22,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:22,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:22,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:24,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:24,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:24,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:24,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:24,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:19:24,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-15 03:19:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:19:24,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:24,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:19:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:19:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:19:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:24,687 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:24,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:24,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:24,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:24,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:24,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:24,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 03:19:24,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:24,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:24,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:19:24,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:24,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:19:24,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 03:19:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:24,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751798062] [2020-10-15 03:19:24,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:24,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:19:24,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663430734] [2020-10-15 03:19:24,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:19:24,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:24,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:19:24,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:19:24,761 INFO L87 Difference]: Start difference. First operand 539 states and 733 transitions. Second operand 8 states. [2020-10-15 03:19:25,028 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-15 03:19:26,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:26,845 INFO L93 Difference]: Finished difference Result 1179 states and 1702 transitions. [2020-10-15 03:19:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:19:26,846 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-15 03:19:26,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:26,857 INFO L225 Difference]: With dead ends: 1179 [2020-10-15 03:19:26,858 INFO L226 Difference]: Without dead ends: 934 [2020-10-15 03:19:26,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:19:26,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-15 03:19:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 558. [2020-10-15 03:19:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-15 03:19:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 759 transitions. [2020-10-15 03:19:26,932 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 759 transitions. Word has length 63 [2020-10-15 03:19:26,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:26,933 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 759 transitions. [2020-10-15 03:19:26,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:19:26,933 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 759 transitions. [2020-10-15 03:19:26,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:19:26,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:26,936 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] [2020-10-15 03:19:26,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:19:26,937 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]=== [2020-10-15 03:19:26,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:26,938 INFO L82 PathProgramCache]: Analyzing trace with hash 640457154, now seen corresponding path program 1 times [2020-10-15 03:19:26,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:26,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877105345] [2020-10-15 03:19:26,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:26,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:27,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:27,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:27,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:27,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:27,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:27,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:28,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:28,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:28,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:31,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:31,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:31,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:19:31,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:19:31,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:19:31,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:31,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:31,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:19:31,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:31,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:19:31,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:32,589 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:32,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:32,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:32,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:19:32,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:32,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:32,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:32,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:32,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:32,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877105345] [2020-10-15 03:19:32,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:32,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:19:32,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627627707] [2020-10-15 03:19:32,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:19:32,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:32,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:19:32,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:19:32,654 INFO L87 Difference]: Start difference. First operand 558 states and 759 transitions. Second operand 9 states. [2020-10-15 03:19:33,192 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:19:34,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:34,886 INFO L93 Difference]: Finished difference Result 1198 states and 1736 transitions. [2020-10-15 03:19:34,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:19:34,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-15 03:19:34,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:34,893 INFO L225 Difference]: With dead ends: 1198 [2020-10-15 03:19:34,893 INFO L226 Difference]: Without dead ends: 947 [2020-10-15 03:19:34,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:19:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-10-15 03:19:34,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 497. [2020-10-15 03:19:34,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-10-15 03:19:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 673 transitions. [2020-10-15 03:19:34,942 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 673 transitions. Word has length 63 [2020-10-15 03:19:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:34,942 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 673 transitions. [2020-10-15 03:19:34,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:19:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 673 transitions. [2020-10-15 03:19:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:19:34,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:34,944 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] [2020-10-15 03:19:34,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:19:34,945 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]=== [2020-10-15 03:19:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:34,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1366321113, now seen corresponding path program 1 times [2020-10-15 03:19:34,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:34,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573834303] [2020-10-15 03:19:34,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:34,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:35,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:35,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:35,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:35,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:35,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:35,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:35,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:36,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:36,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:36,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:39,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:39,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:39,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:39,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:19:39,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:19:39,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:19:39,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:39,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:39,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:19:39,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:19:39,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 03:19:39,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:40,551 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:40,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:40,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:40,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:40,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:40,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:40,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:19:40,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:40,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:19:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:19:40,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:40,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:40,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573834303] [2020-10-15 03:19:40,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:40,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:19:40,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731901704] [2020-10-15 03:19:40,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:19:40,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:40,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:19:40,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:19:40,643 INFO L87 Difference]: Start difference. First operand 497 states and 673 transitions. Second operand 7 states. [2020-10-15 03:19:40,985 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-15 03:19:42,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:42,638 INFO L93 Difference]: Finished difference Result 1455 states and 2092 transitions. [2020-10-15 03:19:42,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:19:42,639 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-15 03:19:42,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:42,644 INFO L225 Difference]: With dead ends: 1455 [2020-10-15 03:19:42,645 INFO L226 Difference]: Without dead ends: 1108 [2020-10-15 03:19:42,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:19:42,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-10-15 03:19:42,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 487. [2020-10-15 03:19:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-10-15 03:19:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 652 transitions. [2020-10-15 03:19:42,690 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 652 transitions. Word has length 63 [2020-10-15 03:19:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:42,691 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 652 transitions. [2020-10-15 03:19:42,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:19:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 652 transitions. [2020-10-15 03:19:42,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:19:42,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:42,692 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] [2020-10-15 03:19:42,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:19:42,693 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]=== [2020-10-15 03:19:42,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:42,693 INFO L82 PathProgramCache]: Analyzing trace with hash -655036931, now seen corresponding path program 1 times [2020-10-15 03:19:42,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:42,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374753523] [2020-10-15 03:19:42,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:42,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:42,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:42,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:42,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:43,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:43,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:43,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:43,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:44,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:44,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:45,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:45,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:46,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:47,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:47,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:19:47,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:19:47,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:19:47,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:47,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:19:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:47,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 03:19:47,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:48,158 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:48,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:48,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:48,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:48,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:48,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:48,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:19:48,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:48,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:48,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374753523] [2020-10-15 03:19:48,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:48,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:19:48,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500616667] [2020-10-15 03:19:48,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:19:48,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:48,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:19:48,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:19:48,193 INFO L87 Difference]: Start difference. First operand 487 states and 652 transitions. Second operand 8 states. [2020-10-15 03:19:48,882 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 228 [2020-10-15 03:19:51,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:51,675 INFO L93 Difference]: Finished difference Result 1924 states and 2767 transitions. [2020-10-15 03:19:51,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 03:19:51,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:19:51,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:51,682 INFO L225 Difference]: With dead ends: 1924 [2020-10-15 03:19:51,682 INFO L226 Difference]: Without dead ends: 1665 [2020-10-15 03:19:51,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-15 03:19:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2020-10-15 03:19:51,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 490. [2020-10-15 03:19:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-15 03:19:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 654 transitions. [2020-10-15 03:19:51,741 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 654 transitions. Word has length 64 [2020-10-15 03:19:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:51,741 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 654 transitions. [2020-10-15 03:19:51,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:19:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 654 transitions. [2020-10-15 03:19:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:19:51,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:51,743 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] [2020-10-15 03:19:51,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:19:51,743 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]=== [2020-10-15 03:19:51,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:51,743 INFO L82 PathProgramCache]: Analyzing trace with hash -24118369, now seen corresponding path program 1 times [2020-10-15 03:19:51,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:51,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965295188] [2020-10-15 03:19:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:51,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:51,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:51,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:51,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:56,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:56,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:19:56,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:19:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:19:56,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:56,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:19:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 03:19:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:57,056 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:57,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:57,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:57,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:57,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:57,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:57,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:19:57,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:57,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:57,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:57,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:57,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:57,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:57,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965295188] [2020-10-15 03:19:57,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:57,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:19:57,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625743226] [2020-10-15 03:19:57,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:19:57,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:57,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:19:57,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:19:57,085 INFO L87 Difference]: Start difference. First operand 490 states and 654 transitions. Second operand 7 states. [2020-10-15 03:19:57,367 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 03:19:58,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:58,813 INFO L93 Difference]: Finished difference Result 1104 states and 1540 transitions. [2020-10-15 03:19:58,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:19:58,814 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-15 03:19:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:58,817 INFO L225 Difference]: With dead ends: 1104 [2020-10-15 03:19:58,817 INFO L226 Difference]: Without dead ends: 844 [2020-10-15 03:19:58,818 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 [2020-10-15 03:19:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-15 03:19:58,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 585. [2020-10-15 03:19:58,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-15 03:19:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 800 transitions. [2020-10-15 03:19:58,884 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 800 transitions. Word has length 64 [2020-10-15 03:19:58,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:58,884 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 800 transitions. [2020-10-15 03:19:58,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:19:58,884 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 800 transitions. [2020-10-15 03:19:58,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:19:58,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:58,886 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] [2020-10-15 03:19:58,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:19:58,886 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]=== [2020-10-15 03:19:58,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1580420600, now seen corresponding path program 1 times [2020-10-15 03:19:58,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:58,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675792383] [2020-10-15 03:19:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:58,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:58,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:01,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:01,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:01,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:01,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:02,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:02,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:02,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:03,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:03,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:03,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:20:03,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-15 03:20:03,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:20:03,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:03,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:03,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:03,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:03,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 03:20:03,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:04,311 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:04,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:04,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:04,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:04,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:20:04,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:04,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:04,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:04,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675792383] [2020-10-15 03:20:04,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:04,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:04,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834022032] [2020-10-15 03:20:04,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:04,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:04,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:04,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:04,349 INFO L87 Difference]: Start difference. First operand 585 states and 800 transitions. Second operand 8 states. [2020-10-15 03:20:04,981 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 215 [2020-10-15 03:20:06,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:06,424 INFO L93 Difference]: Finished difference Result 1031 states and 1455 transitions. [2020-10-15 03:20:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:20:06,425 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:20:06,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:06,428 INFO L225 Difference]: With dead ends: 1031 [2020-10-15 03:20:06,428 INFO L226 Difference]: Without dead ends: 756 [2020-10-15 03:20:06,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:20:06,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-15 03:20:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 515. [2020-10-15 03:20:06,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-10-15 03:20:06,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 709 transitions. [2020-10-15 03:20:06,493 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 709 transitions. Word has length 64 [2020-10-15 03:20:06,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:06,494 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 709 transitions. [2020-10-15 03:20:06,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:06,494 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 709 transitions. [2020-10-15 03:20:06,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:20:06,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:06,495 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] [2020-10-15 03:20:06,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:20:06,495 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]=== [2020-10-15 03:20:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:06,496 INFO L82 PathProgramCache]: Analyzing trace with hash -827202858, now seen corresponding path program 1 times [2020-10-15 03:20:06,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:06,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050285880] [2020-10-15 03:20:06,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:06,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:08,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:08,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:08,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:09,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:10,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:10,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:10,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:11,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:11,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:20:11,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:20:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:20:11,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:11,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:20:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:20:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 03:20:11,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:11,809 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:11,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:11,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:11,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:11,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:11,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:11,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:20:11,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:11,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:20:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:11,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:20:11,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:11,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050285880] [2020-10-15 03:20:11,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:11,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:11,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787399269] [2020-10-15 03:20:11,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:20:11,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:11,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:20:11,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:20:11,851 INFO L87 Difference]: Start difference. First operand 515 states and 709 transitions. Second operand 9 states. [2020-10-15 03:20:12,119 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 03:20:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:13,198 INFO L93 Difference]: Finished difference Result 1269 states and 1829 transitions. [2020-10-15 03:20:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:20:13,199 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-15 03:20:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:13,203 INFO L225 Difference]: With dead ends: 1269 [2020-10-15 03:20:13,204 INFO L226 Difference]: Without dead ends: 958 [2020-10-15 03:20:13,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:20:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-10-15 03:20:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 552. [2020-10-15 03:20:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-10-15 03:20:13,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 752 transitions. [2020-10-15 03:20:13,274 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 752 transitions. Word has length 66 [2020-10-15 03:20:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:13,275 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 752 transitions. [2020-10-15 03:20:13,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:20:13,275 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 752 transitions. [2020-10-15 03:20:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:20:13,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:13,276 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] [2020-10-15 03:20:13,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:20:13,276 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]=== [2020-10-15 03:20:13,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:13,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1267733291, now seen corresponding path program 1 times [2020-10-15 03:20:13,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:13,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917481599] [2020-10-15 03:20:13,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:13,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:13,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:13,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:13,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:13,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:13,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:13,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:13,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:18,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:18,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:20:18,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:20:18,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:20:18,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:18,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:20:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 03:20:18,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:18,640 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:18,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:18,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:18,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:18,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:18,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:20:18,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:18,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:20:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:20:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:20:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:18,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917481599] [2020-10-15 03:20:18,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:18,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:20:18,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026321026] [2020-10-15 03:20:18,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:18,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:18,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:18,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:18,701 INFO L87 Difference]: Start difference. First operand 552 states and 752 transitions. Second operand 8 states. [2020-10-15 03:20:18,984 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-15 03:20:20,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:20,324 INFO L93 Difference]: Finished difference Result 1985 states and 2861 transitions. [2020-10-15 03:20:20,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:20:20,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-15 03:20:20,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:20,330 INFO L225 Difference]: With dead ends: 1985 [2020-10-15 03:20:20,330 INFO L226 Difference]: Without dead ends: 1642 [2020-10-15 03:20:20,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:20:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2020-10-15 03:20:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 575. [2020-10-15 03:20:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-10-15 03:20:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 778 transitions. [2020-10-15 03:20:20,417 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 778 transitions. Word has length 66 [2020-10-15 03:20:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:20,417 INFO L479 AbstractCegarLoop]: Abstraction has 575 states and 778 transitions. [2020-10-15 03:20:20,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:20,418 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 778 transitions. [2020-10-15 03:20:20,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:20:20,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:20,419 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] [2020-10-15 03:20:20,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:20:20,419 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]=== [2020-10-15 03:20:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:20,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1512393959, now seen corresponding path program 1 times [2020-10-15 03:20:20,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:20,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672936936] [2020-10-15 03:20:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:20,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:20,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:20,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:21,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:21,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:23,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:23,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:23,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:23,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:23,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:25,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:25,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:25,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:20:25,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:20:25,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:20:25,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:25,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:25,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:20:25,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:25,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:20:25,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:25,859 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:25,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:25,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:25,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:25,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:25,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:25,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:20:25,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:25,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:20:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:25,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672936936] [2020-10-15 03:20:25,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:25,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:20:25,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806578940] [2020-10-15 03:20:25,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:20:25,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:25,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:20:25,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:20:25,901 INFO L87 Difference]: Start difference. First operand 575 states and 778 transitions. Second operand 9 states. [2020-10-15 03:20:26,206 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:20:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:28,445 INFO L93 Difference]: Finished difference Result 2073 states and 2961 transitions. [2020-10-15 03:20:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:20:28,446 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 03:20:28,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:28,454 INFO L225 Difference]: With dead ends: 2073 [2020-10-15 03:20:28,454 INFO L226 Difference]: Without dead ends: 1742 [2020-10-15 03:20:28,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:20:28,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2020-10-15 03:20:28,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 575. [2020-10-15 03:20:28,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-10-15 03:20:28,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 776 transitions. [2020-10-15 03:20:28,582 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 776 transitions. Word has length 67 [2020-10-15 03:20:28,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:28,582 INFO L479 AbstractCegarLoop]: Abstraction has 575 states and 776 transitions. [2020-10-15 03:20:28,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:20:28,582 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 776 transitions. [2020-10-15 03:20:28,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:20:28,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:28,584 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] [2020-10-15 03:20:28,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:20:28,584 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]=== [2020-10-15 03:20:28,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:28,585 INFO L82 PathProgramCache]: Analyzing trace with hash 816033119, now seen corresponding path program 1 times [2020-10-15 03:20:28,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:28,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428137201] [2020-10-15 03:20:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:28,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:28,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:28,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:28,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:28,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:28,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:29,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:29,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:29,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:32,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:32,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:33,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:33,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:33,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:33,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:20:33,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 03:20:33,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:20:33,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:33,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:33,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:33,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 03:20:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:33,925 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:33,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:33,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:33,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:33,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:33,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:33,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:20:33,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:33,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:33,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:33,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:33,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:33,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:33,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:33,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428137201] [2020-10-15 03:20:33,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:33,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:33,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46298573] [2020-10-15 03:20:33,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:33,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:33,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:33,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:33,959 INFO L87 Difference]: Start difference. First operand 575 states and 776 transitions. Second operand 8 states. [2020-10-15 03:20:34,267 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:20:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:35,324 INFO L93 Difference]: Finished difference Result 1012 states and 1409 transitions. [2020-10-15 03:20:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 03:20:35,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-15 03:20:35,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:35,327 INFO L225 Difference]: With dead ends: 1012 [2020-10-15 03:20:35,327 INFO L226 Difference]: Without dead ends: 737 [2020-10-15 03:20:35,328 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 [2020-10-15 03:20:35,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2020-10-15 03:20:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 575. [2020-10-15 03:20:35,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-10-15 03:20:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 772 transitions. [2020-10-15 03:20:35,398 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 772 transitions. Word has length 67 [2020-10-15 03:20:35,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:35,398 INFO L479 AbstractCegarLoop]: Abstraction has 575 states and 772 transitions. [2020-10-15 03:20:35,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:35,398 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 772 transitions. [2020-10-15 03:20:35,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:20:35,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:35,399 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] [2020-10-15 03:20:35,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:20:35,400 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]=== [2020-10-15 03:20:35,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:35,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1381371838, now seen corresponding path program 1 times [2020-10-15 03:20:35,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:35,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121172081] [2020-10-15 03:20:35,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:35,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:35,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:35,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:35,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:36,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:36,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:36,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:36,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:39,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:39,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:20:39,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:20:39,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4568 [2020-10-15 03:20:39,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:39,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:20:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:20:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:40,404 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:40,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:40,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:40,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:40,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:40,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:20:40,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:40,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:40,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:40,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:40,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:40,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:40,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121172081] [2020-10-15 03:20:40,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:40,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:20:40,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9753650] [2020-10-15 03:20:40,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:20:40,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:40,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:20:40,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:20:40,435 INFO L87 Difference]: Start difference. First operand 575 states and 772 transitions. Second operand 9 states. [2020-10-15 03:20:40,822 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-15 03:20:42,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:42,552 INFO L93 Difference]: Finished difference Result 1562 states and 2236 transitions. [2020-10-15 03:20:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:20:42,554 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 03:20:42,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:42,561 INFO L225 Difference]: With dead ends: 1562 [2020-10-15 03:20:42,561 INFO L226 Difference]: Without dead ends: 1556 [2020-10-15 03:20:42,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:20:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2020-10-15 03:20:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 569. [2020-10-15 03:20:42,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-10-15 03:20:42,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 765 transitions. [2020-10-15 03:20:42,669 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 765 transitions. Word has length 67 [2020-10-15 03:20:42,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:42,670 INFO L479 AbstractCegarLoop]: Abstraction has 569 states and 765 transitions. [2020-10-15 03:20:42,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:20:42,670 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 765 transitions. [2020-10-15 03:20:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 03:20:42,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:42,671 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, 1] [2020-10-15 03:20:42,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:20:42,671 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]=== [2020-10-15 03:20:42,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:42,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1121931674, now seen corresponding path program 1 times [2020-10-15 03:20:42,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:42,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096812530] [2020-10-15 03:20:42,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:42,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:42,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:42,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:42,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:42,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:43,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:43,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:43,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:43,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:43,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:43,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:44,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:45,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:46,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:47,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:47,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-15 03:20:47,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:20:47,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:20:47,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:47,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:47,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:47,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:47,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:20:47,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:47,989 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:47,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:47,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:48,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:48,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:48,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:20:48,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:48,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:48,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:48,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096812530] [2020-10-15 03:20:48,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:48,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:48,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006599127] [2020-10-15 03:20:48,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:48,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:48,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:48,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:48,022 INFO L87 Difference]: Start difference. First operand 569 states and 765 transitions. Second operand 8 states. [2020-10-15 03:20:48,293 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 03:20:50,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:50,279 INFO L93 Difference]: Finished difference Result 4047 states and 5853 transitions. [2020-10-15 03:20:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 03:20:50,280 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-10-15 03:20:50,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:50,292 INFO L225 Difference]: With dead ends: 4047 [2020-10-15 03:20:50,293 INFO L226 Difference]: Without dead ends: 3666 [2020-10-15 03:20:50,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:20:50,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2020-10-15 03:20:50,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 571. [2020-10-15 03:20:50,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-15 03:20:50,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 759 transitions. [2020-10-15 03:20:50,418 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 759 transitions. Word has length 69 [2020-10-15 03:20:50,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:50,419 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 759 transitions. [2020-10-15 03:20:50,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:50,419 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 759 transitions. [2020-10-15 03:20:50,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 03:20:50,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:50,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:50,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:20:50,421 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]=== [2020-10-15 03:20:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:50,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1833434688, now seen corresponding path program 1 times [2020-10-15 03:20:50,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:50,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095630473] [2020-10-15 03:20:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:50,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:50,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:50,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:50,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:50,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:51,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:51,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:51,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:51,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:55,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:55,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-15 03:20:55,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:20:55,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:20:55,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:55,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:20:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:20:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 03:20:55,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:55,720 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:55,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:55,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:55,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:55,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:55,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:55,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:20:55,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:55,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:55,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:20:55,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:55,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:20:55,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:55,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095630473] [2020-10-15 03:20:55,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:55,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:20:55,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527221743] [2020-10-15 03:20:55,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:20:55,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:55,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:20:55,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:20:55,759 INFO L87 Difference]: Start difference. First operand 571 states and 759 transitions. Second operand 6 states. [2020-10-15 03:20:56,046 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 03:20:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:57,036 INFO L93 Difference]: Finished difference Result 1285 states and 1803 transitions. [2020-10-15 03:20:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:20:57,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-10-15 03:20:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:57,039 INFO L225 Difference]: With dead ends: 1285 [2020-10-15 03:20:57,039 INFO L226 Difference]: Without dead ends: 849 [2020-10-15 03:20:57,041 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 [2020-10-15 03:20:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2020-10-15 03:20:57,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 847. [2020-10-15 03:20:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2020-10-15 03:20:57,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1189 transitions. [2020-10-15 03:20:57,177 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1189 transitions. Word has length 89 [2020-10-15 03:20:57,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:57,177 INFO L479 AbstractCegarLoop]: Abstraction has 847 states and 1189 transitions. [2020-10-15 03:20:57,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:20:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1189 transitions. [2020-10-15 03:20:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 03:20:57,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:57,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:57,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:20:57,180 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]=== [2020-10-15 03:20:57,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:57,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1247573133, now seen corresponding path program 1 times [2020-10-15 03:20:57,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:57,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780236908] [2020-10-15 03:20:57,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:57,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:58,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:58,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:59,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:59,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:02,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:02,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-15 03:21:02,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:21:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:21:02,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:02,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:21:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:21:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:02,629 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:02,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:02,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:02,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:02,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:02,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:02,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:21:02,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:02,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:02,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:02,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780236908] [2020-10-15 03:21:02,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:02,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:21:02,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90856684] [2020-10-15 03:21:02,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:21:02,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:02,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:21:02,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:02,668 INFO L87 Difference]: Start difference. First operand 847 states and 1189 transitions. Second operand 8 states. [2020-10-15 03:21:03,412 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 227 [2020-10-15 03:21:05,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:05,833 INFO L93 Difference]: Finished difference Result 3437 states and 5070 transitions. [2020-10-15 03:21:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 03:21:05,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2020-10-15 03:21:05,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:05,843 INFO L225 Difference]: With dead ends: 3437 [2020-10-15 03:21:05,843 INFO L226 Difference]: Without dead ends: 2797 [2020-10-15 03:21:05,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:21:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2020-10-15 03:21:06,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 847. [2020-10-15 03:21:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2020-10-15 03:21:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1185 transitions. [2020-10-15 03:21:06,003 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1185 transitions. Word has length 90 [2020-10-15 03:21:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:06,003 INFO L479 AbstractCegarLoop]: Abstraction has 847 states and 1185 transitions. [2020-10-15 03:21:06,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:21:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1185 transitions. [2020-10-15 03:21:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 03:21:06,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:06,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:06,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:21:06,006 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]=== [2020-10-15 03:21:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:06,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1590524177, now seen corresponding path program 1 times [2020-10-15 03:21:06,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:06,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673718309] [2020-10-15 03:21:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:06,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:06,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:06,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:06,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:06,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:08,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:08,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:08,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:08,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:08,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:11,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:11,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 03:21:11,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:21:11,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:21:11,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:11,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:21:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 03:21:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 03:21:11,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:11,313 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:11,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:11,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:11,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:11,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:11,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:21:11,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:11,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:11,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:11,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673718309] [2020-10-15 03:21:11,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:11,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:21:11,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004787341] [2020-10-15 03:21:11,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:21:11,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:11,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:21:11,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:21:11,343 INFO L87 Difference]: Start difference. First operand 847 states and 1185 transitions. Second operand 7 states. [2020-10-15 03:21:11,639 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 03:21:13,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:13,302 INFO L93 Difference]: Finished difference Result 5615 states and 8425 transitions. [2020-10-15 03:21:13,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:21:13,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-15 03:21:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:13,323 INFO L225 Difference]: With dead ends: 5615 [2020-10-15 03:21:13,323 INFO L226 Difference]: Without dead ends: 5019 [2020-10-15 03:21:13,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:21:13,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5019 states. [2020-10-15 03:21:13,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5019 to 1441. [2020-10-15 03:21:13,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2020-10-15 03:21:13,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2065 transitions. [2020-10-15 03:21:13,642 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2065 transitions. Word has length 92 [2020-10-15 03:21:13,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:13,642 INFO L479 AbstractCegarLoop]: Abstraction has 1441 states and 2065 transitions. [2020-10-15 03:21:13,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:21:13,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2065 transitions. [2020-10-15 03:21:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 03:21:13,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:13,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:13,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:21:13,646 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]=== [2020-10-15 03:21:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:13,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1501941795, now seen corresponding path program 1 times [2020-10-15 03:21:13,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:13,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214023583] [2020-10-15 03:21:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:13,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:13,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:13,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:13,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:14,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:14,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:16,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:16,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:16,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:17,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:17,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:18,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:18,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 03:21:18,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:21:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:21:18,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:18,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:21:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 03:21:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:21:18,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:18,937 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:18,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:18,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:18,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:18,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:18,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:18,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:21:18,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:18,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:18,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:18,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:18,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:18,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:18,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214023583] [2020-10-15 03:21:18,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:18,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:21:18,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778930463] [2020-10-15 03:21:18,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:21:18,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:18,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:21:18,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:21:18,966 INFO L87 Difference]: Start difference. First operand 1441 states and 2065 transitions. Second operand 6 states. [2020-10-15 03:21:19,254 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:21:20,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:20,358 INFO L93 Difference]: Finished difference Result 3775 states and 5564 transitions. [2020-10-15 03:21:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:21:20,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-10-15 03:21:20,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:20,365 INFO L225 Difference]: With dead ends: 3775 [2020-10-15 03:21:20,365 INFO L226 Difference]: Without dead ends: 2585 [2020-10-15 03:21:20,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:21:20,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2020-10-15 03:21:20,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2581. [2020-10-15 03:21:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2581 states. [2020-10-15 03:21:20,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 3753 transitions. [2020-10-15 03:21:20,899 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 3753 transitions. Word has length 94 [2020-10-15 03:21:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:20,899 INFO L479 AbstractCegarLoop]: Abstraction has 2581 states and 3753 transitions. [2020-10-15 03:21:20,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:21:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 3753 transitions. [2020-10-15 03:21:20,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 03:21:20,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:20,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:20,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:21:20,903 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]=== [2020-10-15 03:21:20,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:20,903 INFO L82 PathProgramCache]: Analyzing trace with hash -800589869, now seen corresponding path program 1 times [2020-10-15 03:21:20,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:20,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503088275] [2020-10-15 03:21:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:20,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:20,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:20,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:21,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:21,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:21,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:23,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:23,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:23,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:23,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:25,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:25,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 03:21:25,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:21:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:21:25,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:25,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:21:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 03:21:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-15 03:21:25,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:26,217 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:26,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:26,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:26,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:26,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:21:26,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:26,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:26,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:26,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503088275] [2020-10-15 03:21:26,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:26,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:21:26,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445738308] [2020-10-15 03:21:26,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:21:26,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:26,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:21:26,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:21:26,251 INFO L87 Difference]: Start difference. First operand 2581 states and 3753 transitions. Second operand 5 states. [2020-10-15 03:21:26,550 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 03:21:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:28,133 INFO L93 Difference]: Finished difference Result 6647 states and 9749 transitions. [2020-10-15 03:21:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:21:28,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-10-15 03:21:28,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:28,144 INFO L225 Difference]: With dead ends: 6647 [2020-10-15 03:21:28,145 INFO L226 Difference]: Without dead ends: 4317 [2020-10-15 03:21:28,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:21:28,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2020-10-15 03:21:29,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 4275. [2020-10-15 03:21:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4275 states. [2020-10-15 03:21:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 6155 transitions. [2020-10-15 03:21:29,229 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 6155 transitions. Word has length 94 [2020-10-15 03:21:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:29,229 INFO L479 AbstractCegarLoop]: Abstraction has 4275 states and 6155 transitions. [2020-10-15 03:21:29,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:21:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 6155 transitions. [2020-10-15 03:21:29,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 03:21:29,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:29,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:29,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 03:21:29,234 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]=== [2020-10-15 03:21:29,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:29,234 INFO L82 PathProgramCache]: Analyzing trace with hash -90402220, now seen corresponding path program 1 times [2020-10-15 03:21:29,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:29,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523970230] [2020-10-15 03:21:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:29,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:29,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:29,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:29,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:29,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:29,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:31,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:31,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:31,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:34,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:34,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 03:21:34,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:21:34,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:21:34,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:34,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:21:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 03:21:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-15 03:21:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:34,580 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:34,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:34,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:34,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:34,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:34,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:34,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:21:34,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:34,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:34,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:34,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:34,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:34,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:34,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523970230] [2020-10-15 03:21:34,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:34,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:21:34,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874830442] [2020-10-15 03:21:34,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:21:34,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:34,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:21:34,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:21:34,628 INFO L87 Difference]: Start difference. First operand 4275 states and 6155 transitions. Second operand 7 states. [2020-10-15 03:21:34,968 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:21:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:38,535 INFO L93 Difference]: Finished difference Result 16713 states and 24371 transitions. [2020-10-15 03:21:38,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:21:38,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-15 03:21:38,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:38,565 INFO L225 Difference]: With dead ends: 16713 [2020-10-15 03:21:38,565 INFO L226 Difference]: Without dead ends: 12689 [2020-10-15 03:21:38,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:21:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12689 states. [2020-10-15 03:21:39,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12689 to 4275. [2020-10-15 03:21:39,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4275 states. [2020-10-15 03:21:39,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 6133 transitions. [2020-10-15 03:21:39,820 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 6133 transitions. Word has length 94 [2020-10-15 03:21:39,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:39,820 INFO L479 AbstractCegarLoop]: Abstraction has 4275 states and 6133 transitions. [2020-10-15 03:21:39,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:21:39,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 6133 transitions. [2020-10-15 03:21:39,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 03:21:39,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:39,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:39,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 03:21:39,824 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]=== [2020-10-15 03:21:39,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:39,824 INFO L82 PathProgramCache]: Analyzing trace with hash -511361449, now seen corresponding path program 1 times [2020-10-15 03:21:39,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:39,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335797179] [2020-10-15 03:21:39,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:39,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:39,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:39,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:39,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:40,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:40,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:40,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:40,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:40,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:43,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:43,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:43,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:43,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:44,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:44,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 03:21:44,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:21:44,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:21:44,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:44,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:44,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:21:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 03:21:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 03:21:44,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:45,133 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:45,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:45,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:45,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:45,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:45,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:45,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:21:45,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:45,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:45,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:45,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335797179] [2020-10-15 03:21:45,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:45,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:21:45,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130357841] [2020-10-15 03:21:45,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:21:45,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:45,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:21:45,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:21:45,165 INFO L87 Difference]: Start difference. First operand 4275 states and 6133 transitions. Second operand 6 states. [2020-10-15 03:21:45,438 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:21:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:47,650 INFO L93 Difference]: Finished difference Result 10299 states and 14881 transitions. [2020-10-15 03:21:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:21:47,650 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-10-15 03:21:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:47,663 INFO L225 Difference]: With dead ends: 10299 [2020-10-15 03:21:47,663 INFO L226 Difference]: Without dead ends: 6275 [2020-10-15 03:21:47,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:21:47,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2020-10-15 03:21:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 5889. [2020-10-15 03:21:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5889 states. [2020-10-15 03:21:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5889 states to 5889 states and 8520 transitions. [2020-10-15 03:21:49,311 INFO L78 Accepts]: Start accepts. Automaton has 5889 states and 8520 transitions. Word has length 94 [2020-10-15 03:21:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:49,312 INFO L479 AbstractCegarLoop]: Abstraction has 5889 states and 8520 transitions. [2020-10-15 03:21:49,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:21:49,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5889 states and 8520 transitions. [2020-10-15 03:21:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 03:21:49,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:49,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:49,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 03:21:49,315 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]=== [2020-10-15 03:21:49,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:49,316 INFO L82 PathProgramCache]: Analyzing trace with hash -2085055407, now seen corresponding path program 1 times [2020-10-15 03:21:49,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:49,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564561202] [2020-10-15 03:21:49,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:49,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:49,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:49,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:49,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:49,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:49,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:49,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:52,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:54,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:54,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 03:21:54,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:21:54,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:21:54,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:54,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:21:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 03:21:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 03:21:54,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:54,734 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:54,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:54,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:54,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:54,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:54,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:21:54,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:54,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:54,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:54,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564561202] [2020-10-15 03:21:54,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:54,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:21:54,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357447411] [2020-10-15 03:21:54,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:21:54,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:54,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:21:54,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:54,759 INFO L87 Difference]: Start difference. First operand 5889 states and 8520 transitions. Second operand 8 states. [2020-10-15 03:21:55,046 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 03:22:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:03,447 INFO L93 Difference]: Finished difference Result 31666 states and 46355 transitions. [2020-10-15 03:22:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 03:22:03,448 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-10-15 03:22:03,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:03,494 INFO L225 Difference]: With dead ends: 31666 [2020-10-15 03:22:03,494 INFO L226 Difference]: Without dead ends: 26028 [2020-10-15 03:22:03,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-10-15 03:22:03,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26028 states. [2020-10-15 03:22:06,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26028 to 10229. [2020-10-15 03:22:06,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10229 states. [2020-10-15 03:22:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 15064 transitions. [2020-10-15 03:22:06,462 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 15064 transitions. Word has length 94 [2020-10-15 03:22:06,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:06,462 INFO L479 AbstractCegarLoop]: Abstraction has 10229 states and 15064 transitions. [2020-10-15 03:22:06,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:06,462 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 15064 transitions. [2020-10-15 03:22:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-15 03:22:06,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:06,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:06,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 03:22:06,466 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]=== [2020-10-15 03:22:06,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:06,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1986459319, now seen corresponding path program 1 times [2020-10-15 03:22:06,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:06,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643005667] [2020-10-15 03:22:06,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:06,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:07,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:07,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:07,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:07,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:07,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:08,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:08,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:10,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:10,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:11,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:11,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 03:22:11,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:22:11,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:22:11,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:11,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:11,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:11,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:22:11,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 03:22:11,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:11,785 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:11,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:11,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:11,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:11,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:11,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:11,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:22:11,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:11,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:11,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:11,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:11,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643005667] [2020-10-15 03:22:11,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:11,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:11,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761008341] [2020-10-15 03:22:11,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:11,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:11,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:11,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:11,814 INFO L87 Difference]: Start difference. First operand 10229 states and 15064 transitions. Second operand 8 states. [2020-10-15 03:22:12,104 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 03:22:20,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:20,320 INFO L93 Difference]: Finished difference Result 35449 states and 52282 transitions. [2020-10-15 03:22:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 03:22:20,320 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-10-15 03:22:20,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:20,353 INFO L225 Difference]: With dead ends: 35449 [2020-10-15 03:22:20,353 INFO L226 Difference]: Without dead ends: 27695 [2020-10-15 03:22:20,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-10-15 03:22:20,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27695 states. [2020-10-15 03:22:24,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27695 to 12977. [2020-10-15 03:22:24,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12977 states. [2020-10-15 03:22:24,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12977 states to 12977 states and 19056 transitions. [2020-10-15 03:22:24,697 INFO L78 Accepts]: Start accepts. Automaton has 12977 states and 19056 transitions. Word has length 95 [2020-10-15 03:22:24,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:24,697 INFO L479 AbstractCegarLoop]: Abstraction has 12977 states and 19056 transitions. [2020-10-15 03:22:24,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:24,697 INFO L276 IsEmpty]: Start isEmpty. Operand 12977 states and 19056 transitions. [2020-10-15 03:22:24,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-15 03:22:24,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:24,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:24,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 03:22:24,701 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]=== [2020-10-15 03:22:24,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:24,701 INFO L82 PathProgramCache]: Analyzing trace with hash 609931089, now seen corresponding path program 1 times [2020-10-15 03:22:24,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:24,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287284138] [2020-10-15 03:22:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:24,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:24,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:24,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:24,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:25,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:25,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:25,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:29,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 03:22:29,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:22:29,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:22:29,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:29,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:22:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 03:22:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-15 03:22:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:30,110 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:30,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:30,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:30,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:30,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:30,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:22:30,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:30,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:30,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:30,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287284138] [2020-10-15 03:22:30,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:30,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:22:30,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179442707] [2020-10-15 03:22:30,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:22:30,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:30,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:22:30,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:22:30,176 INFO L87 Difference]: Start difference. First operand 12977 states and 19056 transitions. Second operand 6 states. [2020-10-15 03:22:30,474 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 203