/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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:02:03,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:02:03,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:02:03,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:02:03,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:02:03,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:02:03,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:02:03,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:02:03,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:02:03,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:02:03,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:02:03,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:02:03,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:02:03,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:02:03,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:02:03,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:02:03,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:02:03,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:02:03,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:02:03,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:02:03,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:02:03,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:02:03,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:02:03,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:02:03,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:02:03,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:02:03,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:02:03,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:02:03,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:02:03,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:02:03,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:02:03,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:02:03,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:02:03,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:02:03,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:02:03,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:02:03,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:02:03,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:02:03,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:02:03,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:02:03,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:02:03,724 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 04:02:03,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:02:03,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:02:03,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:02:03,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:02:03,775 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:02:03,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:02:03,776 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:02:03,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:02:03,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:02:03,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:02:03,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:02:03,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:02:03,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:02:03,779 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:02:03,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:02:03,779 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:02:03,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:02:03,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:02:03,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:02:03,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:02:03,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:02:03,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:02:03,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:02:03,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:02:03,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:02:03,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:02:03,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:02:03,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:02:03,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:02:03,782 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 04:02:04,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:02:04,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:02:04,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:02:04,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:02:04,242 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:02:04,242 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 04:02:04,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ed56082/a6f0f9c8d57543b0b7e2ad887210a509/FLAGca66c030a [2020-10-15 04:02:04,962 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:02:04,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 04:02:04,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ed56082/a6f0f9c8d57543b0b7e2ad887210a509/FLAGca66c030a [2020-10-15 04:02:05,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ed56082/a6f0f9c8d57543b0b7e2ad887210a509 [2020-10-15 04:02:05,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:02:05,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:02:05,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:02:05,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:02:05,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:02:05,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:02:05" (1/1) ... [2020-10-15 04:02:05,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113494b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:05, skipping insertion in model container [2020-10-15 04:02:05,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:02:05" (1/1) ... [2020-10-15 04:02:05,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:02:05,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:02:06,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:02:06,042 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:02:06,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:02:06,556 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:02:06,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06 WrapperNode [2020-10-15 04:02:06,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:02:06,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:02:06,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:02:06,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:02:06,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (1/1) ... [2020-10-15 04:02:06,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (1/1) ... [2020-10-15 04:02:06,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (1/1) ... [2020-10-15 04:02:06,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (1/1) ... [2020-10-15 04:02:06,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (1/1) ... [2020-10-15 04:02:06,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (1/1) ... [2020-10-15 04:02:06,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (1/1) ... [2020-10-15 04:02:06,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:02:06,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:02:06,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:02:06,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:02:06,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (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 04:02:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:02:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:02:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 04:02:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:02:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:02:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:02:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 04:02:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 04:02:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 04:02:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 04:02:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 04:02:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 04:02:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 04:02:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 04:02:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 04:02:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 04:02:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 04:02:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:02:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:02:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:02:08,540 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:02:08,541 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 04:02:08,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:02:08 BoogieIcfgContainer [2020-10-15 04:02:08,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:02:08,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:02:08,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:02:08,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:02:08,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:02:05" (1/3) ... [2020-10-15 04:02:08,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c7bddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:02:08, skipping insertion in model container [2020-10-15 04:02:08,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:02:06" (2/3) ... [2020-10-15 04:02:08,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c7bddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:02:08, skipping insertion in model container [2020-10-15 04:02:08,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:02:08" (3/3) ... [2020-10-15 04:02:08,578 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 04:02:08,588 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:02:08,596 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-15 04:02:08,609 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 04:02:08,637 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:02:08,637 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:02:08,637 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:02:08,637 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:02:08,637 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:02:08,637 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:02:08,637 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:02:08,638 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:02:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states. [2020-10-15 04:02:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-15 04:02:08,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:02:08,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:08,690 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:02:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:02:08,696 INFO L82 PathProgramCache]: Analyzing trace with hash -635063315, now seen corresponding path program 1 times [2020-10-15 04:02:08,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:02:08,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401490038] [2020-10-15 04:02:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:02:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:09,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:09,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:09,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:10,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:10,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:10,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:10,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:10,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:10,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:11,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:12,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:12,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:12,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:14,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:14,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 04:02:14,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 04:02:14,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-15 04:02:14,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:14,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:02:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-15 04:02:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-15 04:02:14,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 04:02:14,649 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:02:14,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:02:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:14,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:14,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:14,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:02:14,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:02:14,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 04:02:14,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:14,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:14,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:02:14,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:02:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:02:14,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:02:14,727 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 04:02:14,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401490038] [2020-10-15 04:02:14,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:02:14,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:02:14,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157387351] [2020-10-15 04:02:14,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:02:14,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:02:14,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:02:14,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:02:14,758 INFO L87 Difference]: Start difference. First operand 418 states. Second operand 4 states. [2020-10-15 04:02:15,166 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-15 04:02:17,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:02:17,536 INFO L93 Difference]: Finished difference Result 749 states and 1307 transitions. [2020-10-15 04:02:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:02:17,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-10-15 04:02:17,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:02:17,559 INFO L225 Difference]: With dead ends: 749 [2020-10-15 04:02:17,559 INFO L226 Difference]: Without dead ends: 599 [2020-10-15 04:02:17,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:02:17,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-15 04:02:17,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 597. [2020-10-15 04:02:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-15 04:02:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 876 transitions. [2020-10-15 04:02:17,699 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 876 transitions. Word has length 152 [2020-10-15 04:02:17,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:02:17,703 INFO L479 AbstractCegarLoop]: Abstraction has 597 states and 876 transitions. [2020-10-15 04:02:17,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:02:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 876 transitions. [2020-10-15 04:02:17,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-15 04:02:17,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:02:17,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:17,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:02:17,717 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:02:17,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:02:17,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1576124083, now seen corresponding path program 1 times [2020-10-15 04:02:17,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:02:17,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932322133] [2020-10-15 04:02:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:02:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:17,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:18,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:18,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:18,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:18,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:18,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:18,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:18,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:19,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:22,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:22,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 04:02:22,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 04:02:22,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-15 04:02:22,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:22,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:02:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:02:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 04:02:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:02:23,219 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:02:23,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:02:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:23,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:23,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:23,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:02:23,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:02:23,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 04:02:23,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:23,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:02:23,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:02:23,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:02:23,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:02:23,305 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 04:02:23,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932322133] [2020-10-15 04:02:23,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:02:23,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:02:23,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776340390] [2020-10-15 04:02:23,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:02:23,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:02:23,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:02:23,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:02:23,310 INFO L87 Difference]: Start difference. First operand 597 states and 876 transitions. Second operand 5 states. [2020-10-15 04:02:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:02:26,650 INFO L93 Difference]: Finished difference Result 1725 states and 2521 transitions. [2020-10-15 04:02:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:02:26,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-10-15 04:02:26,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:02:26,657 INFO L225 Difference]: With dead ends: 1725 [2020-10-15 04:02:26,657 INFO L226 Difference]: Without dead ends: 1145 [2020-10-15 04:02:26,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:02:26,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2020-10-15 04:02:26,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1124. [2020-10-15 04:02:26,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-10-15 04:02:26,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1639 transitions. [2020-10-15 04:02:26,718 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1639 transitions. Word has length 152 [2020-10-15 04:02:26,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:02:26,718 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1639 transitions. [2020-10-15 04:02:26,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:02:26,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1639 transitions. [2020-10-15 04:02:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 04:02:26,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:02:26,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:26,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:02:26,723 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:02:26,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:02:26,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1496728024, now seen corresponding path program 1 times [2020-10-15 04:02:26,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:02:26,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308080969] [2020-10-15 04:02:26,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:02:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:26,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:26,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:26,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:27,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:27,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:27,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:27,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:27,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:27,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:28,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:28,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:30,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:30,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:30,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:30,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:30,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:31,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:31,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-15 04:02:31,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 04:02:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 04:02:31,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:31,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:02:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:02:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-15 04:02:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:02:32,249 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:02:32,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:02:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:32,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:32,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:32,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:02:32,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:02:32,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 04:02:32,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:32,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:32,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:02:32,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:02:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:02:32,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:02:32,394 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 04:02:32,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308080969] [2020-10-15 04:02:32,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:02:32,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:02:32,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078043097] [2020-10-15 04:02:32,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:02:32,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:02:32,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:02:32,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:02:32,398 INFO L87 Difference]: Start difference. First operand 1124 states and 1639 transitions. Second operand 5 states. [2020-10-15 04:02:36,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:02:36,200 INFO L93 Difference]: Finished difference Result 3261 states and 4736 transitions. [2020-10-15 04:02:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:02:36,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-10-15 04:02:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:02:36,221 INFO L225 Difference]: With dead ends: 3261 [2020-10-15 04:02:36,222 INFO L226 Difference]: Without dead ends: 2171 [2020-10-15 04:02:36,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:02:36,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2020-10-15 04:02:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 2141. [2020-10-15 04:02:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2141 states. [2020-10-15 04:02:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3092 transitions. [2020-10-15 04:02:36,381 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3092 transitions. Word has length 153 [2020-10-15 04:02:36,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:02:36,381 INFO L479 AbstractCegarLoop]: Abstraction has 2141 states and 3092 transitions. [2020-10-15 04:02:36,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:02:36,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3092 transitions. [2020-10-15 04:02:36,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-15 04:02:36,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:02:36,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:36,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:02:36,400 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:02:36,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:02:36,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1958394385, now seen corresponding path program 1 times [2020-10-15 04:02:36,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:02:36,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229177000] [2020-10-15 04:02:36,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:02:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:36,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:36,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:36,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:36,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:36,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:37,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:37,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:37,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:37,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:38,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:40,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:40,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:41,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:41,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-15 04:02:41,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 04:02:41,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 04:02:41,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:41,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:02:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:02:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-15 04:02:41,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:02:41,962 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:02:41,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:02:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:41,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:41,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:02:41,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:02:41,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 04:02:41,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:41,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:41,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:02:41,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:02:41,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:02:41,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:02:42,065 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 04:02:42,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229177000] [2020-10-15 04:02:42,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:02:42,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:02:42,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537881671] [2020-10-15 04:02:42,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:02:42,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:02:42,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:02:42,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:02:42,069 INFO L87 Difference]: Start difference. First operand 2141 states and 3092 transitions. Second operand 5 states. [2020-10-15 04:02:45,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:02:45,720 INFO L93 Difference]: Finished difference Result 5908 states and 8539 transitions. [2020-10-15 04:02:45,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:02:45,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-10-15 04:02:45,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:02:45,741 INFO L225 Difference]: With dead ends: 5908 [2020-10-15 04:02:45,741 INFO L226 Difference]: Without dead ends: 4110 [2020-10-15 04:02:45,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:02:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2020-10-15 04:02:45,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 4080. [2020-10-15 04:02:45,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4080 states. [2020-10-15 04:02:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4080 states to 4080 states and 5823 transitions. [2020-10-15 04:02:46,001 INFO L78 Accepts]: Start accepts. Automaton has 4080 states and 5823 transitions. Word has length 154 [2020-10-15 04:02:46,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:02:46,002 INFO L479 AbstractCegarLoop]: Abstraction has 4080 states and 5823 transitions. [2020-10-15 04:02:46,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:02:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4080 states and 5823 transitions. [2020-10-15 04:02:46,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-15 04:02:46,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:02:46,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:46,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:02:46,010 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:02:46,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:02:46,011 INFO L82 PathProgramCache]: Analyzing trace with hash -114052695, now seen corresponding path program 1 times [2020-10-15 04:02:46,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:02:46,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282812526] [2020-10-15 04:02:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:02:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:46,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:46,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:46,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:46,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:46,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:46,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:46,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:47,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:47,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:51,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:51,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-15 04:02:51,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 04:02:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 04:02:51,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:51,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:02:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:02:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 04:02:51,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:02:51,396 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:02:51,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:02:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:51,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:51,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:02:51,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:02:51,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:02:51,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 04:02:51,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:02:51,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:02:51,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:02:51,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:02:51,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:02:51,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:02:51,493 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 04:02:51,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282812526] [2020-10-15 04:02:51,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:02:51,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:02:51,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218170181] [2020-10-15 04:02:51,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:02:51,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:02:51,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:02:51,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:02:51,501 INFO L87 Difference]: Start difference. First operand 4080 states and 5823 transitions. Second operand 5 states. [2020-10-15 04:02:54,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:02:54,659 INFO L93 Difference]: Finished difference Result 11920 states and 16944 transitions. [2020-10-15 04:02:54,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:02:54,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-15 04:02:54,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:02:54,694 INFO L225 Difference]: With dead ends: 11920 [2020-10-15 04:02:54,694 INFO L226 Difference]: Without dead ends: 7853 [2020-10-15 04:02:54,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:02:54,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2020-10-15 04:02:55,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7829. [2020-10-15 04:02:55,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7829 states. [2020-10-15 04:02:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7829 states to 7829 states and 11015 transitions. [2020-10-15 04:02:55,130 INFO L78 Accepts]: Start accepts. Automaton has 7829 states and 11015 transitions. Word has length 155 [2020-10-15 04:02:55,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:02:55,130 INFO L479 AbstractCegarLoop]: Abstraction has 7829 states and 11015 transitions. [2020-10-15 04:02:55,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:02:55,131 INFO L276 IsEmpty]: Start isEmpty. Operand 7829 states and 11015 transitions. [2020-10-15 04:02:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-15 04:02:55,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:02:55,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:55,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:02:55,144 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:02:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:02:55,144 INFO L82 PathProgramCache]: Analyzing trace with hash -488244624, now seen corresponding path program 1 times [2020-10-15 04:02:55,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:02:55,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854117931] [2020-10-15 04:02:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:02:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:02:55,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:55,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:55,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:55,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:55,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:55,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:56,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:58,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:02:58,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:00,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:00,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-15 04:03:00,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 04:03:00,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 04:03:00,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:00,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:03:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:03:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 04:03:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:03:00,730 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:03:00,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:03:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:00,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:00,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:00,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:03:00,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:03:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 04:03:00,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:00,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:03:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:03:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:03:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:03:00,865 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 04:03:00,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854117931] [2020-10-15 04:03:00,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:03:00,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:03:00,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962085923] [2020-10-15 04:03:00,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:03:00,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:03:00,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:03:00,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:03:00,871 INFO L87 Difference]: Start difference. First operand 7829 states and 11015 transitions. Second operand 5 states. [2020-10-15 04:03:04,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:03:04,439 INFO L93 Difference]: Finished difference Result 21186 states and 29677 transitions. [2020-10-15 04:03:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:03:04,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-10-15 04:03:04,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:03:04,491 INFO L225 Difference]: With dead ends: 21186 [2020-10-15 04:03:04,491 INFO L226 Difference]: Without dead ends: 13774 [2020-10-15 04:03:04,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:03:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13774 states. [2020-10-15 04:03:05,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13774 to 13740. [2020-10-15 04:03:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13740 states. [2020-10-15 04:03:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13740 states to 13740 states and 18983 transitions. [2020-10-15 04:03:05,306 INFO L78 Accepts]: Start accepts. Automaton has 13740 states and 18983 transitions. Word has length 156 [2020-10-15 04:03:05,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:03:05,306 INFO L479 AbstractCegarLoop]: Abstraction has 13740 states and 18983 transitions. [2020-10-15 04:03:05,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:03:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 13740 states and 18983 transitions. [2020-10-15 04:03:05,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 04:03:05,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:03:05,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:05,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:03:05,328 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:03:05,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:03:05,328 INFO L82 PathProgramCache]: Analyzing trace with hash -224743192, now seen corresponding path program 1 times [2020-10-15 04:03:05,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:03:05,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734147421] [2020-10-15 04:03:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:03:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:05,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:05,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:05,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:05,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:05,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:05,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:07,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:10,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:10,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-15 04:03:10,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 04:03:10,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 04:03:10,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:10,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:10,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:03:10,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:03:10,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-15 04:03:10,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:10,693 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:03:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:03:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:10,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:10,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:10,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:03:10,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:03:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 04:03:10,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:10,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:03:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:03:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:03:10,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:10,780 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 04:03:10,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734147421] [2020-10-15 04:03:10,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:03:10,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:03:10,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103301877] [2020-10-15 04:03:10,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:03:10,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:03:10,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:03:10,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:03:10,784 INFO L87 Difference]: Start difference. First operand 13740 states and 18983 transitions. Second operand 5 states. [2020-10-15 04:03:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:03:14,649 INFO L93 Difference]: Finished difference Result 39792 states and 54819 transitions. [2020-10-15 04:03:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:03:14,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-15 04:03:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:03:14,709 INFO L225 Difference]: With dead ends: 39792 [2020-10-15 04:03:14,709 INFO L226 Difference]: Without dead ends: 26539 [2020-10-15 04:03:14,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:03:14,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26539 states. [2020-10-15 04:03:16,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26539 to 26505. [2020-10-15 04:03:16,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26505 states. [2020-10-15 04:03:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26505 states to 26505 states and 36052 transitions. [2020-10-15 04:03:16,567 INFO L78 Accepts]: Start accepts. Automaton has 26505 states and 36052 transitions. Word has length 157 [2020-10-15 04:03:16,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:03:16,568 INFO L479 AbstractCegarLoop]: Abstraction has 26505 states and 36052 transitions. [2020-10-15 04:03:16,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:03:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 26505 states and 36052 transitions. [2020-10-15 04:03:16,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-15 04:03:16,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:03:16,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:16,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:03:16,607 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:03:16,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:03:16,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1101482736, now seen corresponding path program 1 times [2020-10-15 04:03:16,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:03:16,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125915457] [2020-10-15 04:03:16,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:03:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:16,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:16,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:16,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:16,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:16,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:16,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:21,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:21,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-15 04:03:21,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:03:21,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 04:03:21,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:21,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:03:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 04:03:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 04:03:21,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:21,969 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:03:21,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:03:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:21,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:21,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:21,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:03:21,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:03:21,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:03:21,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:21,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:03:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:03:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:03:21,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:03:22,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125915457] [2020-10-15 04:03:22,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:03:22,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:03:22,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134078288] [2020-10-15 04:03:22,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:03:22,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:03:22,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:03:22,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:03:22,035 INFO L87 Difference]: Start difference. First operand 26505 states and 36052 transitions. Second operand 5 states. [2020-10-15 04:03:24,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:03:24,390 INFO L93 Difference]: Finished difference Result 43205 states and 58841 transitions. [2020-10-15 04:03:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:03:24,391 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-10-15 04:03:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:03:24,423 INFO L225 Difference]: With dead ends: 43205 [2020-10-15 04:03:24,424 INFO L226 Difference]: Without dead ends: 17134 [2020-10-15 04:03:24,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:03:24,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17134 states. [2020-10-15 04:03:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17134 to 17134. [2020-10-15 04:03:25,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17134 states. [2020-10-15 04:03:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17134 states to 17134 states and 23265 transitions. [2020-10-15 04:03:25,100 INFO L78 Accepts]: Start accepts. Automaton has 17134 states and 23265 transitions. Word has length 158 [2020-10-15 04:03:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:03:25,100 INFO L479 AbstractCegarLoop]: Abstraction has 17134 states and 23265 transitions. [2020-10-15 04:03:25,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:03:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 17134 states and 23265 transitions. [2020-10-15 04:03:25,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-15 04:03:25,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:03:25,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:25,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:03:25,123 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:03:25,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:03:25,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1636658012, now seen corresponding path program 1 times [2020-10-15 04:03:25,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:03:25,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650159776] [2020-10-15 04:03:25,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:03:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:25,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:25,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:25,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:25,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:25,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:25,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:30,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:30,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-15 04:03:30,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:03:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 04:03:30,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:30,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:03:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 04:03:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 04:03:30,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:30,471 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:03:30,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:03:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:30,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:30,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:30,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:03:30,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:03:30,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 04:03:30,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:30,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:03:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:03:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:03:30,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:03:30,530 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 04:03:30,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650159776] [2020-10-15 04:03:30,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:03:30,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:03:30,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449387972] [2020-10-15 04:03:30,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:03:30,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:03:30,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:03:30,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:03:30,533 INFO L87 Difference]: Start difference. First operand 17134 states and 23265 transitions. Second operand 5 states. [2020-10-15 04:03:32,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:03:32,534 INFO L93 Difference]: Finished difference Result 27538 states and 37665 transitions. [2020-10-15 04:03:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:03:32,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-10-15 04:03:32,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:03:32,551 INFO L225 Difference]: With dead ends: 27538 [2020-10-15 04:03:32,551 INFO L226 Difference]: Without dead ends: 11776 [2020-10-15 04:03:32,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:03:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11776 states. [2020-10-15 04:03:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11776 to 11771. [2020-10-15 04:03:33,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11771 states. [2020-10-15 04:03:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11771 states to 11771 states and 15979 transitions. [2020-10-15 04:03:33,046 INFO L78 Accepts]: Start accepts. Automaton has 11771 states and 15979 transitions. Word has length 162 [2020-10-15 04:03:33,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:03:33,046 INFO L479 AbstractCegarLoop]: Abstraction has 11771 states and 15979 transitions. [2020-10-15 04:03:33,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:03:33,046 INFO L276 IsEmpty]: Start isEmpty. Operand 11771 states and 15979 transitions. [2020-10-15 04:03:33,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-15 04:03:33,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:03:33,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:33,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 04:03:33,059 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:03:33,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:03:33,059 INFO L82 PathProgramCache]: Analyzing trace with hash 767358254, now seen corresponding path program 1 times [2020-10-15 04:03:33,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:03:33,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724814181] [2020-10-15 04:03:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:03:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:33,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:33,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:33,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:33,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:33,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:33,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:33,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:33,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:33,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:35,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:38,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:38,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-15 04:03:38,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 04:03:38,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 04:03:38,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:38,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:38,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:03:38,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 04:03:38,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-15 04:03:38,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:38,353 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:03:38,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:03:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:38,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:38,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:38,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:03:38,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:03:38,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 04:03:38,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:38,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:38,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:03:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:03:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:03:38,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:38,405 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 04:03:38,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724814181] [2020-10-15 04:03:38,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:03:38,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:03:38,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368709604] [2020-10-15 04:03:38,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:03:38,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:03:38,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:03:38,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:03:38,407 INFO L87 Difference]: Start difference. First operand 11771 states and 15979 transitions. Second operand 4 states. [2020-10-15 04:03:38,684 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 04:03:42,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:03:42,027 INFO L93 Difference]: Finished difference Result 19512 states and 26552 transitions. [2020-10-15 04:03:42,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:03:42,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2020-10-15 04:03:42,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:03:42,041 INFO L225 Difference]: With dead ends: 19512 [2020-10-15 04:03:42,041 INFO L226 Difference]: Without dead ends: 12035 [2020-10-15 04:03:42,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:03:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12035 states. [2020-10-15 04:03:42,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12035 to 12012. [2020-10-15 04:03:42,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12012 states. [2020-10-15 04:03:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12012 states to 12012 states and 16192 transitions. [2020-10-15 04:03:42,473 INFO L78 Accepts]: Start accepts. Automaton has 12012 states and 16192 transitions. Word has length 165 [2020-10-15 04:03:42,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:03:42,473 INFO L479 AbstractCegarLoop]: Abstraction has 12012 states and 16192 transitions. [2020-10-15 04:03:42,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:03:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 12012 states and 16192 transitions. [2020-10-15 04:03:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-15 04:03:42,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:03:42,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:42,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 04:03:42,483 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:03:42,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:03:42,484 INFO L82 PathProgramCache]: Analyzing trace with hash 460686062, now seen corresponding path program 1 times [2020-10-15 04:03:42,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:03:42,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237564533] [2020-10-15 04:03:42,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:03:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:42,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:42,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:42,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:42,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:42,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:42,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:47,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:47,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-15 04:03:47,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:03:47,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-15 04:03:47,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:47,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:47,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 04:03:47,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 04:03:47,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 04:03:47,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:47,927 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:03:47,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:03:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:47,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:47,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:47,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:03:47,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:03:47,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 04:03:47,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:47,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:47,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:03:47,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:03:47,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:03:47,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:48,010 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 04:03:48,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237564533] [2020-10-15 04:03:48,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:03:48,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 04:03:48,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734689004] [2020-10-15 04:03:48,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 04:03:48,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:03:48,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 04:03:48,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 04:03:48,012 INFO L87 Difference]: Start difference. First operand 12012 states and 16192 transitions. Second operand 9 states. [2020-10-15 04:03:48,310 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 04:03:52,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:03:52,144 INFO L93 Difference]: Finished difference Result 39550 states and 55015 transitions. [2020-10-15 04:03:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 04:03:52,144 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 166 [2020-10-15 04:03:52,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:03:52,175 INFO L225 Difference]: With dead ends: 39550 [2020-10-15 04:03:52,176 INFO L226 Difference]: Without dead ends: 30119 [2020-10-15 04:03:52,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-15 04:03:52,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30119 states. [2020-10-15 04:03:53,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30119 to 17788. [2020-10-15 04:03:53,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17788 states. [2020-10-15 04:03:53,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17788 states to 17788 states and 24068 transitions. [2020-10-15 04:03:53,028 INFO L78 Accepts]: Start accepts. Automaton has 17788 states and 24068 transitions. Word has length 166 [2020-10-15 04:03:53,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:03:53,029 INFO L479 AbstractCegarLoop]: Abstraction has 17788 states and 24068 transitions. [2020-10-15 04:03:53,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 04:03:53,029 INFO L276 IsEmpty]: Start isEmpty. Operand 17788 states and 24068 transitions. [2020-10-15 04:03:53,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-15 04:03:53,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:03:53,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:53,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 04:03:53,042 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:03:53,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:03:53,042 INFO L82 PathProgramCache]: Analyzing trace with hash 620965835, now seen corresponding path program 1 times [2020-10-15 04:03:53,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:03:53,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026918946] [2020-10-15 04:03:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:03:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:53,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:53,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:53,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:53,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:53,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:58,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:58,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-15 04:03:58,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:03:58,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 04:03:58,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:58,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:03:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 04:03:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 04:03:58,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:58,409 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:03:58,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:03:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:03:58,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:03:58,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:03:58,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:03:58,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:03:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 04:03:58,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:03:58,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:03:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:03:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:03:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:03:58,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:03:58,445 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 04:03:58,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026918946] [2020-10-15 04:03:58,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:03:58,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:03:58,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324206155] [2020-10-15 04:03:58,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:03:58,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:03:58,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:03:58,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:03:58,447 INFO L87 Difference]: Start difference. First operand 17788 states and 24068 transitions. Second operand 5 states. [2020-10-15 04:04:00,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:00,709 INFO L93 Difference]: Finished difference Result 29944 states and 40597 transitions. [2020-10-15 04:04:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:04:00,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-10-15 04:04:00,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:00,723 INFO L225 Difference]: With dead ends: 29944 [2020-10-15 04:04:00,723 INFO L226 Difference]: Without dead ends: 13530 [2020-10-15 04:04:00,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:04:00,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13530 states. [2020-10-15 04:04:01,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13530 to 13524. [2020-10-15 04:04:01,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13524 states. [2020-10-15 04:04:01,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13524 states to 13524 states and 18271 transitions. [2020-10-15 04:04:01,326 INFO L78 Accepts]: Start accepts. Automaton has 13524 states and 18271 transitions. Word has length 166 [2020-10-15 04:04:01,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:01,326 INFO L479 AbstractCegarLoop]: Abstraction has 13524 states and 18271 transitions. [2020-10-15 04:04:01,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:04:01,326 INFO L276 IsEmpty]: Start isEmpty. Operand 13524 states and 18271 transitions. [2020-10-15 04:04:01,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-15 04:04:01,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:01,334 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:01,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 04:04:01,334 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:01,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:01,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1725502713, now seen corresponding path program 1 times [2020-10-15 04:04:01,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:01,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849761540] [2020-10-15 04:04:01,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:01,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:02,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:02,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:06,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 04:04:06,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 04:04:06,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 04:04:06,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:06,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:04:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:04:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 04:04:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:06,727 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:06,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:06,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:06,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:06,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:06,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:04:06,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:06,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:06,807 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 04:04:06,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849761540] [2020-10-15 04:04:06,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:06,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:04:06,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415793603] [2020-10-15 04:04:06,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:04:06,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:06,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:04:06,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:04:06,810 INFO L87 Difference]: Start difference. First operand 13524 states and 18271 transitions. Second operand 5 states. [2020-10-15 04:04:07,090 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 04:04:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:10,240 INFO L93 Difference]: Finished difference Result 23347 states and 31565 transitions. [2020-10-15 04:04:10,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 04:04:10,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2020-10-15 04:04:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:10,252 INFO L225 Difference]: With dead ends: 23347 [2020-10-15 04:04:10,252 INFO L226 Difference]: Without dead ends: 13557 [2020-10-15 04:04:10,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:04:10,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13557 states. [2020-10-15 04:04:10,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13557 to 13518. [2020-10-15 04:04:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13518 states. [2020-10-15 04:04:10,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13518 states to 13518 states and 18167 transitions. [2020-10-15 04:04:10,887 INFO L78 Accepts]: Start accepts. Automaton has 13518 states and 18167 transitions. Word has length 169 [2020-10-15 04:04:10,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:10,888 INFO L479 AbstractCegarLoop]: Abstraction has 13518 states and 18167 transitions. [2020-10-15 04:04:10,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:04:10,888 INFO L276 IsEmpty]: Start isEmpty. Operand 13518 states and 18167 transitions. [2020-10-15 04:04:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-15 04:04:10,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:10,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:10,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 04:04:10,895 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:10,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:10,895 INFO L82 PathProgramCache]: Analyzing trace with hash 230882370, now seen corresponding path program 1 times [2020-10-15 04:04:10,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:10,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640962942] [2020-10-15 04:04:10,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:10,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:10,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:11,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:11,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:11,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:15,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-15 04:04:15,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 04:04:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 04:04:15,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:15,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 04:04:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 04:04:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-15 04:04:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:16,257 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:16,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:16,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:16,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:16,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:16,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:16,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 04:04:16,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:16,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:04:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:04:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:16,315 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 04:04:16,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640962942] [2020-10-15 04:04:16,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:16,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 04:04:16,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558390768] [2020-10-15 04:04:16,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 04:04:16,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:16,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 04:04:16,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 04:04:16,317 INFO L87 Difference]: Start difference. First operand 13518 states and 18167 transitions. Second operand 9 states. [2020-10-15 04:04:16,621 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 04:04:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:23,065 INFO L93 Difference]: Finished difference Result 64211 states and 89179 transitions. [2020-10-15 04:04:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 04:04:23,066 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-10-15 04:04:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:23,131 INFO L225 Difference]: With dead ends: 64211 [2020-10-15 04:04:23,131 INFO L226 Difference]: Without dead ends: 58566 [2020-10-15 04:04:23,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-10-15 04:04:23,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58566 states. [2020-10-15 04:04:25,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58566 to 31443. [2020-10-15 04:04:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31443 states. [2020-10-15 04:04:25,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31443 states to 31443 states and 42843 transitions. [2020-10-15 04:04:25,114 INFO L78 Accepts]: Start accepts. Automaton has 31443 states and 42843 transitions. Word has length 170 [2020-10-15 04:04:25,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:25,114 INFO L479 AbstractCegarLoop]: Abstraction has 31443 states and 42843 transitions. [2020-10-15 04:04:25,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 04:04:25,114 INFO L276 IsEmpty]: Start isEmpty. Operand 31443 states and 42843 transitions. [2020-10-15 04:04:25,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-15 04:04:25,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:25,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:25,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 04:04:25,129 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:25,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:25,130 INFO L82 PathProgramCache]: Analyzing trace with hash 692587014, now seen corresponding path program 1 times [2020-10-15 04:04:25,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:25,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751123922] [2020-10-15 04:04:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:25,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:25,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:25,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:25,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:25,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:26,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:30,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-15 04:04:30,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:30,500 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:30,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:30,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:30,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:04:30,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:30,561 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 04:04:30,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751123922] [2020-10-15 04:04:30,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:30,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 04:04:30,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194546781] [2020-10-15 04:04:30,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 04:04:30,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:30,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 04:04:30,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 04:04:30,563 INFO L87 Difference]: Start difference. First operand 31443 states and 42843 transitions. Second operand 9 states. [2020-10-15 04:04:30,876 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 04:04:38,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:38,316 INFO L93 Difference]: Finished difference Result 94225 states and 130104 transitions. [2020-10-15 04:04:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 04:04:38,317 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-10-15 04:04:38,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:38,414 INFO L225 Difference]: With dead ends: 94225 [2020-10-15 04:04:38,414 INFO L226 Difference]: Without dead ends: 63748 [2020-10-15 04:04:38,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-15 04:04:38,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63748 states. [2020-10-15 04:04:42,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63748 to 41904. [2020-10-15 04:04:42,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41904 states. [2020-10-15 04:04:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41904 states to 41904 states and 56464 transitions. [2020-10-15 04:04:42,834 INFO L78 Accepts]: Start accepts. Automaton has 41904 states and 56464 transitions. Word has length 170 [2020-10-15 04:04:42,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:42,834 INFO L479 AbstractCegarLoop]: Abstraction has 41904 states and 56464 transitions. [2020-10-15 04:04:42,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 04:04:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 41904 states and 56464 transitions. [2020-10-15 04:04:42,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-15 04:04:42,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:42,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:42,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 04:04:42,855 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:42,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:42,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1812005553, now seen corresponding path program 1 times [2020-10-15 04:04:42,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:42,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251071927] [2020-10-15 04:04:42,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:42,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:42,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:42,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:43,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:43,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-15 04:04:43,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:04:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 624 [2020-10-15 04:04:43,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:43,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:04:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-15 04:04:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 04:04:43,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:43,782 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:43,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:43,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:43,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:43,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:43,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:43,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:04:43,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:43,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:43,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:43,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:04:43,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251071927] [2020-10-15 04:04:43,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:43,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:04:43,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273002426] [2020-10-15 04:04:43,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:04:43,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:43,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:04:43,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:04:43,836 INFO L87 Difference]: Start difference. First operand 41904 states and 56464 transitions. Second operand 4 states. [2020-10-15 04:04:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:50,360 INFO L93 Difference]: Finished difference Result 94428 states and 130182 transitions. [2020-10-15 04:04:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:04:50,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2020-10-15 04:04:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:50,426 INFO L225 Difference]: With dead ends: 94428 [2020-10-15 04:04:50,426 INFO L226 Difference]: Without dead ends: 55500 [2020-10-15 04:04:50,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:04:50,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55500 states. [2020-10-15 04:04:54,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55500 to 51849. [2020-10-15 04:04:54,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51849 states. [2020-10-15 04:04:54,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51849 states to 51849 states and 72107 transitions. [2020-10-15 04:04:54,301 INFO L78 Accepts]: Start accepts. Automaton has 51849 states and 72107 transitions. Word has length 170 [2020-10-15 04:04:54,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:54,301 INFO L479 AbstractCegarLoop]: Abstraction has 51849 states and 72107 transitions. [2020-10-15 04:04:54,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:04:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 51849 states and 72107 transitions. [2020-10-15 04:04:54,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-15 04:04:54,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:54,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:54,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 04:04:54,316 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:54,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:54,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1043578970, now seen corresponding path program 1 times [2020-10-15 04:04:54,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:54,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853454016] [2020-10-15 04:04:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:54,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:54,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:55,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:55,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:55,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-15 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3918 [2020-10-15 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 04:04:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:04:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-15 04:04:58,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:58,836 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:58,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:58,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:58,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:58,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 04:04:58,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:58,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:58,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:58,939 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 04:04:58,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853454016] [2020-10-15 04:04:58,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:58,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 04:04:58,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364504718] [2020-10-15 04:04:58,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 04:04:58,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:58,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 04:04:58,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-15 04:04:58,942 INFO L87 Difference]: Start difference. First operand 51849 states and 72107 transitions. Second operand 11 states. [2020-10-15 04:04:59,499 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 04:05:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:05:36,203 INFO L93 Difference]: Finished difference Result 323710 states and 466046 transitions. [2020-10-15 04:05:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 04:05:36,204 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 173 [2020-10-15 04:05:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:05:36,640 INFO L225 Difference]: With dead ends: 323710 [2020-10-15 04:05:36,640 INFO L226 Difference]: Without dead ends: 299276 [2020-10-15 04:05:36,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2020-10-15 04:05:36,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299276 states.