/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=BIGGEST --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/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:50:55,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:50:55,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:50:55,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:50:55,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:50:55,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:50:55,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:50:55,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:50:55,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:50:55,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:50:55,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:50:55,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:50:55,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:50:55,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:50:55,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:50:55,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:50:55,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:50:55,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:50:55,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:50:55,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:50:55,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:50:55,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:50:55,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:50:55,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:50:55,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:50:55,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:50:55,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:50:55,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:50:55,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:50:55,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:50:55,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:50:55,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:50:55,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:50:55,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:50:55,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:50:55,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:50:55,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:50:55,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:50:55,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:50:55,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:50:55,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:50:55,266 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 [2020-10-12 18:50:55,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:50:55,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:50:55,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:50:55,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:50:55,289 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:50:55,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:50:55,289 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:50:55,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:50:55,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:50:55,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:50:55,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:50:55,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:50:55,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:50:55,291 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:50:55,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:50:55,291 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:50:55,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:50:55,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:50:55,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:50:55,292 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:50:55,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:50:55,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:50:55,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:50:55,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:50:55,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:50:55,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:50:55,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:50:55,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:50:55,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:50:55,294 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:50:55,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:50:55,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:50:55,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:50:55,627 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:50:55,627 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:50:55,628 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-12 18:50:55,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca1978917/3613b022b6b14165a0349007e4cde836/FLAG8f661307f [2020-10-12 18:50:56,168 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:50:56,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-12 18:50:56,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca1978917/3613b022b6b14165a0349007e4cde836/FLAG8f661307f [2020-10-12 18:50:56,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca1978917/3613b022b6b14165a0349007e4cde836 [2020-10-12 18:50:56,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:50:56,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:50:56,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:50:56,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:50:56,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:50:56,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:56,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31684d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56, skipping insertion in model container [2020-10-12 18:50:56,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:56,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:50:56,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:50:56,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:50:56,800 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:50:56,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:50:56,954 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:50:56,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56 WrapperNode [2020-10-12 18:50:56,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:50:56,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:50:56,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:50:56,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:50:56,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:56,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:56,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:56,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:57,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:57,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:57,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (1/1) ... [2020-10-12 18:50:57,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:50:57,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:50:57,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:50:57,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:50:57,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (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 [2020-10-12 18:50:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:50:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:50:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:50:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:50:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:50:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:50:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:50:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:50:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:50:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:50:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:50:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:50:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:50:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:50:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:50:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:50:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:50:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:50:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:50:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:50:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:50:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:50:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:50:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:50:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:50:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:50:57,755 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:50:57,756 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:50:57,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:50:57 BoogieIcfgContainer [2020-10-12 18:50:57,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:50:57,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:50:57,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:50:57,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:50:57,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:50:56" (1/3) ... [2020-10-12 18:50:57,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c064a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:50:57, skipping insertion in model container [2020-10-12 18:50:57,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:50:56" (2/3) ... [2020-10-12 18:50:57,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c064a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:50:57, skipping insertion in model container [2020-10-12 18:50:57,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:50:57" (3/3) ... [2020-10-12 18:50:57,771 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-12 18:50:57,783 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:50:57,791 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:50:57,806 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:50:57,834 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:50:57,834 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:50:57,834 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:50:57,835 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:50:57,835 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:50:57,835 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:50:57,835 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:50:57,836 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:50:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-10-12 18:50:57,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 18:50:57,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:50:57,874 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] [2020-10-12 18:50:57,875 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:50:57,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:50:57,881 INFO L82 PathProgramCache]: Analyzing trace with hash 461655447, now seen corresponding path program 1 times [2020-10-12 18:50:57,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:50:57,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492233475] [2020-10-12 18:50:57,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:50:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:58,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:58,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:50:58,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:58,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-12 18:50:58,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:50:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:58,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:50:58,642 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:50:58,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:50:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:58,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:58,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:50:58,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:50:58,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:58,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:58,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:50:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:58,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:58,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:50:58,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:50:58,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:58,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:58,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:50:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:58,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:58,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:58,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:58,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:50:58,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:58,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:50:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:58,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:58,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:58,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:58,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 18:50:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:58,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:58,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:58,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:58,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:50:58,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:58,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:58,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:58,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:50:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:58,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:58,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:58,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:58,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:58,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:50:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:58,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:58,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:50:58,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:58,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:50:58,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:58,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:58,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:50:58,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:58,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:50:58,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492233475] [2020-10-12 18:50:58,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:50:58,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:50:58,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821531301] [2020-10-12 18:50:58,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:50:58,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:50:58,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:50:58,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:50:58,900 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 7 states. [2020-10-12 18:50:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:50:59,816 INFO L93 Difference]: Finished difference Result 221 states and 325 transitions. [2020-10-12 18:50:59,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:50:59,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-10-12 18:50:59,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:50:59,833 INFO L225 Difference]: With dead ends: 221 [2020-10-12 18:50:59,833 INFO L226 Difference]: Without dead ends: 126 [2020-10-12 18:50:59,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:50:59,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-12 18:50:59,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2020-10-12 18:50:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-12 18:50:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 183 transitions. [2020-10-12 18:50:59,902 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 183 transitions. Word has length 56 [2020-10-12 18:50:59,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:50:59,902 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 183 transitions. [2020-10-12 18:50:59,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:50:59,903 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 183 transitions. [2020-10-12 18:50:59,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 18:50:59,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:50:59,906 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] [2020-10-12 18:50:59,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:50:59,906 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:50:59,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:50:59,907 INFO L82 PathProgramCache]: Analyzing trace with hash -435737831, now seen corresponding path program 1 times [2020-10-12 18:50:59,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:50:59,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212552849] [2020-10-12 18:50:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:50:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:59,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:00,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:00,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:51:00,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:00,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-12 18:51:00,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:51:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:51:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:00,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:00,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:00,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:00,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:00,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:00,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:00,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:51:00,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:00,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:00,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:00,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:00,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:00,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:00,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:00,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:51:00,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:00,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:00,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:51:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:00,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:00,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:00,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:00,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:00,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:00,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:00,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:00,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:51:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:00,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:00,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:00,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:00,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:00,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:00,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:00,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 18:51:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:00,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:00,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:00,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:00,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:00,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:00,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:00,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:00,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:51:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:00,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:00,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:00,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:00,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:00,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:00,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:00,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:00,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:51:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:00,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:00,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:00,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:00,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:51:00,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:51:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:00,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212552849] [2020-10-12 18:51:00,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:00,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:51:00,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441828351] [2020-10-12 18:51:00,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:51:00,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:00,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:51:00,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:51:00,673 INFO L87 Difference]: Start difference. First operand 122 states and 183 transitions. Second operand 11 states. [2020-10-12 18:51:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:02,087 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2020-10-12 18:51:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:51:02,089 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-10-12 18:51:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:02,094 INFO L225 Difference]: With dead ends: 226 [2020-10-12 18:51:02,095 INFO L226 Difference]: Without dead ends: 136 [2020-10-12 18:51:02,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:51:02,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-12 18:51:02,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 122. [2020-10-12 18:51:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-12 18:51:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 159 transitions. [2020-10-12 18:51:02,142 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 159 transitions. Word has length 56 [2020-10-12 18:51:02,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:02,142 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 159 transitions. [2020-10-12 18:51:02,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:51:02,142 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 159 transitions. [2020-10-12 18:51:02,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 18:51:02,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:02,147 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] [2020-10-12 18:51:02,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:51:02,150 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:02,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:02,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1653521644, now seen corresponding path program 1 times [2020-10-12 18:51:02,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:02,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905120666] [2020-10-12 18:51:02,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:07,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:07,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:51:07,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:51:07,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:51:07,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:07,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:51:07,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:51:07,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:51:07,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:51:07,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:07,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:07,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:07,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:07,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:07,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:51:07,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:07,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:07,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:07,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:07,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:07,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:07,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:51:07,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:07,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:51:07,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:07,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:51:07,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:07,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:51:07,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:07,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:51:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:07,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:07,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:07,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:07,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:07,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:51:07,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:07,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:07,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:07,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:07,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:07,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:51:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:07,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:07,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:07,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:07,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:07,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:51:07,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:07,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:51:07,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:51:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:07,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:07,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:07,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:07,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:07,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:51:07,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:07,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:07,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:51:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:07,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:07,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:07,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:07,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:51:07,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:07,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:51:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:07,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:07,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:07,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:07,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:07,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:51:07,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:51:07,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:51:07,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:07,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905120666] [2020-10-12 18:51:07,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:07,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:51:07,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891188337] [2020-10-12 18:51:07,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:51:07,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:07,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:51:07,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:51:07,790 INFO L87 Difference]: Start difference. First operand 122 states and 159 transitions. Second operand 16 states. [2020-10-12 18:51:10,488 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:51:14,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:14,757 INFO L93 Difference]: Finished difference Result 965 states and 1381 transitions. [2020-10-12 18:51:14,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-12 18:51:14,761 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 79 [2020-10-12 18:51:14,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:14,784 INFO L225 Difference]: With dead ends: 965 [2020-10-12 18:51:14,785 INFO L226 Difference]: Without dead ends: 881 [2020-10-12 18:51:14,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1206, Invalid=4646, Unknown=0, NotChecked=0, Total=5852 [2020-10-12 18:51:14,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-10-12 18:51:14,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 809. [2020-10-12 18:51:14,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-10-12 18:51:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1163 transitions. [2020-10-12 18:51:14,914 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1163 transitions. Word has length 79 [2020-10-12 18:51:14,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:14,915 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 1163 transitions. [2020-10-12 18:51:14,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:51:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1163 transitions. [2020-10-12 18:51:14,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 18:51:14,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:14,923 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] [2020-10-12 18:51:14,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:51:14,924 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:14,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:14,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1282572889, now seen corresponding path program 1 times [2020-10-12 18:51:14,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:14,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616613850] [2020-10-12 18:51:14,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:14,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:19,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:19,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:51:19,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:51:19,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:51:19,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:51:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-12 18:51:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:51:19,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:20,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:51:20,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:51:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:51:20,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:51:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:51:20,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:51:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:20,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:51:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:51:20,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:51:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:20,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:51:20,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:20,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616613850] [2020-10-12 18:51:20,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:20,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:51:20,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554908541] [2020-10-12 18:51:20,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:51:20,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:20,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:51:20,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:51:20,311 INFO L87 Difference]: Start difference. First operand 809 states and 1163 transitions. Second operand 13 states. [2020-10-12 18:51:21,757 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:21,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:21,954 INFO L93 Difference]: Finished difference Result 946 states and 1358 transitions. [2020-10-12 18:51:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:51:21,955 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 80 [2020-10-12 18:51:21,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:21,963 INFO L225 Difference]: With dead ends: 946 [2020-10-12 18:51:21,963 INFO L226 Difference]: Without dead ends: 944 [2020-10-12 18:51:21,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:51:21,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2020-10-12 18:51:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 854. [2020-10-12 18:51:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 854 states. [2020-10-12 18:51:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1208 transitions. [2020-10-12 18:51:22,029 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1208 transitions. Word has length 80 [2020-10-12 18:51:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:22,029 INFO L479 AbstractCegarLoop]: Abstraction has 854 states and 1208 transitions. [2020-10-12 18:51:22,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:51:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1208 transitions. [2020-10-12 18:51:22,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:51:22,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:22,032 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] [2020-10-12 18:51:22,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:51:22,032 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:22,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:22,032 INFO L82 PathProgramCache]: Analyzing trace with hash -527204828, now seen corresponding path program 1 times [2020-10-12 18:51:22,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:22,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507078683] [2020-10-12 18:51:22,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:22,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:22,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:22,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:22,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:27,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 18:51:27,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:51:27,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:51:27,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:51:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 18:51:27,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:27,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:27,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:27,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:27,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:51:27,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:27,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:27,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:27,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:27,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:51:27,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:51:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:51:27,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:27,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:51:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:27,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:27,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:27,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:27,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:51:27,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:27,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:51:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:27,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:27,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:27,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:51:27,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:27,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:51:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:27,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:27,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:27,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:27,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:27,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:27,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:27,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:51:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:27,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:27,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:27,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:27,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:27,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:27,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:27,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:51:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:27,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:27,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:51:27,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:27,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:51:27,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:51:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:27,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:27,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:27,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507078683] [2020-10-12 18:51:27,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:27,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:51:27,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579759595] [2020-10-12 18:51:27,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:51:27,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:27,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:51:27,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:51:27,429 INFO L87 Difference]: Start difference. First operand 854 states and 1208 transitions. Second operand 10 states. [2020-10-12 18:51:27,563 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:51:29,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:29,624 INFO L93 Difference]: Finished difference Result 3049 states and 4347 transitions. [2020-10-12 18:51:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:51:29,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-12 18:51:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:29,638 INFO L225 Difference]: With dead ends: 3049 [2020-10-12 18:51:29,638 INFO L226 Difference]: Without dead ends: 2233 [2020-10-12 18:51:29,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:51:29,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2020-10-12 18:51:29,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2129. [2020-10-12 18:51:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2129 states. [2020-10-12 18:51:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 3054 transitions. [2020-10-12 18:51:29,780 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 3054 transitions. Word has length 81 [2020-10-12 18:51:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:29,781 INFO L479 AbstractCegarLoop]: Abstraction has 2129 states and 3054 transitions. [2020-10-12 18:51:29,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:51:29,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 3054 transitions. [2020-10-12 18:51:29,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:51:29,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:29,788 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] [2020-10-12 18:51:29,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:51:29,789 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:29,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:29,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1649396094, now seen corresponding path program 1 times [2020-10-12 18:51:29,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:29,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507905143] [2020-10-12 18:51:29,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:29,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:29,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:29,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:30,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:30,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:34,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 18:51:34,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:51:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:51:34,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:51:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:51:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 18:51:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:34,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:34,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:34,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:34,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:34,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:34,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:34,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:34,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:34,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:34,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:34,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:34,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:34,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:34,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:51:34,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:34,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:51:34,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:34,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:34,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:34,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:51:34,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:34,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:51:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:34,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:34,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:34,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:34,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:51:34,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:51:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:35,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:51:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:35,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:35,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:35,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:35,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:35,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:35,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:35,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:35,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:35,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:51:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:35,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:35,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:35,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:35,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:35,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:35,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:35,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:51:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:35,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:35,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:35,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:35,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:35,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:35,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:51:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:35,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:35,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:35,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:51:35,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:35,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:51:35,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:51:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:35,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:35,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507905143] [2020-10-12 18:51:35,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:35,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:51:35,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384985682] [2020-10-12 18:51:35,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:51:35,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:35,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:51:35,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:51:35,150 INFO L87 Difference]: Start difference. First operand 2129 states and 3054 transitions. Second operand 12 states. [2020-10-12 18:51:38,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:38,171 INFO L93 Difference]: Finished difference Result 4577 states and 6527 transitions. [2020-10-12 18:51:38,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 18:51:38,172 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-10-12 18:51:38,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:38,189 INFO L225 Difference]: With dead ends: 4577 [2020-10-12 18:51:38,189 INFO L226 Difference]: Without dead ends: 3039 [2020-10-12 18:51:38,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=265, Invalid=791, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 18:51:38,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2020-10-12 18:51:38,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 2897. [2020-10-12 18:51:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2897 states. [2020-10-12 18:51:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 4157 transitions. [2020-10-12 18:51:38,344 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 4157 transitions. Word has length 81 [2020-10-12 18:51:38,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:38,346 INFO L479 AbstractCegarLoop]: Abstraction has 2897 states and 4157 transitions. [2020-10-12 18:51:38,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:51:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 4157 transitions. [2020-10-12 18:51:38,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:51:38,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:38,352 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] [2020-10-12 18:51:38,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:51:38,352 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:38,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:38,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1033360579, now seen corresponding path program 1 times [2020-10-12 18:51:38,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:38,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906708410] [2020-10-12 18:51:38,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:38,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:38,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:38,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:38,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:39,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:39,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:43,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:43,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:51:43,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:51:43,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:51:43,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:43,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:51:43,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:51:43,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 18:51:43,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:43,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:43,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:43,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:43,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:43,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:51:43,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:43,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:43,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:43,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:43,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:43,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:51:43,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:51:43,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:43,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:43,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:43,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:51:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:43,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:51:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:43,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:43,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:43,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:43,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:43,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:43,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:43,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:43,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:51:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:43,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:43,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:43,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:51:43,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:43,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:51:43,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:51:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:43,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:43,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:51:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:43,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:43,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:43,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:43,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:43,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:43,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:43,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:43,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:51:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:43,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:43,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:43,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:43,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:43,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:43,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:43,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:43,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:51:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:43,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:43,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:43,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:43,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:43,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:51:43,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:51:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:51:43,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:43,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:43,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906708410] [2020-10-12 18:51:43,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:43,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:51:43,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533635387] [2020-10-12 18:51:43,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:51:43,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:43,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:51:43,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:51:43,800 INFO L87 Difference]: Start difference. First operand 2897 states and 4157 transitions. Second operand 16 states. [2020-10-12 18:51:44,172 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 18:51:44,364 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:51:44,541 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:44,715 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:47,022 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:52,126 INFO L93 Difference]: Finished difference Result 7792 states and 11256 transitions. [2020-10-12 18:51:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-12 18:51:52,127 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-12 18:51:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:52,155 INFO L225 Difference]: With dead ends: 7792 [2020-10-12 18:51:52,155 INFO L226 Difference]: Without dead ends: 5252 [2020-10-12 18:51:52,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1980 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1202, Invalid=5118, Unknown=0, NotChecked=0, Total=6320 [2020-10-12 18:51:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5252 states. [2020-10-12 18:51:52,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5252 to 4467. [2020-10-12 18:51:52,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4467 states. [2020-10-12 18:51:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4467 states to 4467 states and 6474 transitions. [2020-10-12 18:51:52,449 INFO L78 Accepts]: Start accepts. Automaton has 4467 states and 6474 transitions. Word has length 82 [2020-10-12 18:51:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:52,450 INFO L479 AbstractCegarLoop]: Abstraction has 4467 states and 6474 transitions. [2020-10-12 18:51:52,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:51:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 4467 states and 6474 transitions. [2020-10-12 18:51:52,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:51:52,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:52,453 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] [2020-10-12 18:51:52,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:51:52,453 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:52,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:52,454 INFO L82 PathProgramCache]: Analyzing trace with hash -909550569, now seen corresponding path program 1 times [2020-10-12 18:51:52,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:52,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114562705] [2020-10-12 18:51:52,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:52,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:52,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:52,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:52,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:52,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:54,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:57,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:51:57,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:51:57,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:51:57,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:51:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:51:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 18:51:57,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:57,636 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:51:57,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:57,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:57,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:57,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:57,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:51:57,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:57,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:57,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:57,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:57,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:57,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:57,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:51:57,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:51:57,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:51:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:57,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:51:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:57,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:57,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:57,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:57,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:51:57,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:57,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:57,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:57,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:51:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:57,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:57,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:57,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:57,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:51:57,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:57,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:57,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:57,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:57,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:57,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:51:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:57,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:57,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:51:57,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:57,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:51:57,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:51:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:57,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:57,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:51:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:57,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:57,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:57,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:57,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:51:57,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:57,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:57,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:51:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:57,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:57,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:57,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:57,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:57,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:51:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:51:57,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:58,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:58,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114562705] [2020-10-12 18:51:58,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:58,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:51:58,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138069197] [2020-10-12 18:51:58,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:51:58,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:58,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:51:58,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:51:58,052 INFO L87 Difference]: Start difference. First operand 4467 states and 6474 transitions. Second operand 16 states. [2020-10-12 18:51:58,357 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-10-12 18:51:59,175 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-12 18:52:01,156 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:52:01,276 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:52:01,564 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:52:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:05,621 INFO L93 Difference]: Finished difference Result 8301 states and 11986 transitions. [2020-10-12 18:52:05,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-10-12 18:52:05,622 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-12 18:52:05,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:05,656 INFO L225 Difference]: With dead ends: 8301 [2020-10-12 18:52:05,656 INFO L226 Difference]: Without dead ends: 6043 [2020-10-12 18:52:05,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1671 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1093, Invalid=4457, Unknown=0, NotChecked=0, Total=5550 [2020-10-12 18:52:05,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2020-10-12 18:52:05,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 5039. [2020-10-12 18:52:05,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5039 states. [2020-10-12 18:52:05,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5039 states to 5039 states and 7292 transitions. [2020-10-12 18:52:05,935 INFO L78 Accepts]: Start accepts. Automaton has 5039 states and 7292 transitions. Word has length 82 [2020-10-12 18:52:05,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:05,935 INFO L479 AbstractCegarLoop]: Abstraction has 5039 states and 7292 transitions. [2020-10-12 18:52:05,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:52:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5039 states and 7292 transitions. [2020-10-12 18:52:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:52:05,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:05,939 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] [2020-10-12 18:52:05,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:52:05,940 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:05,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1294378961, now seen corresponding path program 1 times [2020-10-12 18:52:05,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:05,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608402021] [2020-10-12 18:52:05,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:05,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:06,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:06,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:06,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:06,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:06,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:10,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:10,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:52:10,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:52:10,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:52:10,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:52:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:52:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 18:52:10,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:11,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:11,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:11,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:11,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:11,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:11,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:52:11,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:11,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:11,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:11,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:11,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:11,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:11,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:52:11,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:11,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:52:11,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:11,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:52:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:11,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:11,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:11,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:11,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:11,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:52:11,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:11,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:52:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:11,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:11,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:11,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:11,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:11,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:11,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:11,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:52:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:11,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:11,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:11,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:11,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:52:11,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:11,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:11,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:52:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:11,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:11,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:11,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:52:11,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:11,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:11,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:52:11,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:11,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:11,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:11,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:52:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:11,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:11,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:11,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:11,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:11,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:11,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:52:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:52:11,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:11,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608402021] [2020-10-12 18:52:11,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:11,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:52:11,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240908443] [2020-10-12 18:52:11,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:52:11,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:11,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:52:11,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:52:11,505 INFO L87 Difference]: Start difference. First operand 5039 states and 7292 transitions. Second operand 16 states. [2020-10-12 18:52:11,900 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 18:52:12,107 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:52:12,289 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:52:12,474 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:14,417 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:20,735 INFO L93 Difference]: Finished difference Result 9714 states and 14010 transitions. [2020-10-12 18:52:20,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-12 18:52:20,736 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-12 18:52:20,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:20,763 INFO L225 Difference]: With dead ends: 9714 [2020-10-12 18:52:20,763 INFO L226 Difference]: Without dead ends: 5712 [2020-10-12 18:52:20,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1921 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1185, Invalid=5135, Unknown=0, NotChecked=0, Total=6320 [2020-10-12 18:52:20,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5712 states. [2020-10-12 18:52:21,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5712 to 5029. [2020-10-12 18:52:21,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5029 states. [2020-10-12 18:52:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 7300 transitions. [2020-10-12 18:52:21,039 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 7300 transitions. Word has length 82 [2020-10-12 18:52:21,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:21,041 INFO L479 AbstractCegarLoop]: Abstraction has 5029 states and 7300 transitions. [2020-10-12 18:52:21,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:52:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 7300 transitions. [2020-10-12 18:52:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:52:21,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:21,044 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] [2020-10-12 18:52:21,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:52:21,044 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:21,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:21,045 INFO L82 PathProgramCache]: Analyzing trace with hash -626830407, now seen corresponding path program 1 times [2020-10-12 18:52:21,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:21,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107938225] [2020-10-12 18:52:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:21,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:21,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:21,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:21,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:21,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:22,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:22,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:26,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:26,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:52:26,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:52:26,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:52:26,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:52:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 18:52:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 18:52:26,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:26,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:26,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:26,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:26,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:26,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:26,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:52:26,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:26,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:26,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:26,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:26,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:26,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:26,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:52:26,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:52:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:26,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:52:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:26,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:26,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:26,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:52:26,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:52:26,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:52:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:26,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:26,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 18:52:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:26,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:26,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:26,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:26,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:26,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:52:26,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:26,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:52:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:26,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:26,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:26,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:26,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:26,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:26,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:26,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:26,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:26,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:26,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:26,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:52:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:26,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:26,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:26,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:26,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:26,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:26,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:26,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:26,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:52:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:26,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:26,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:26,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:26,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:26,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:52:26,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:26,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:52:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:52:26,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:26,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:26,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107938225] [2020-10-12 18:52:26,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:26,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:52:26,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446369686] [2020-10-12 18:52:26,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:52:26,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:26,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:52:26,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:52:26,521 INFO L87 Difference]: Start difference. First operand 5029 states and 7300 transitions. Second operand 16 states. [2020-10-12 18:52:26,794 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 18:52:27,199 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:28,352 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-12 18:52:29,146 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:52:29,326 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:29,508 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:52:29,730 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:52:29,905 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:30,107 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:52:36,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:36,113 INFO L93 Difference]: Finished difference Result 8576 states and 12334 transitions. [2020-10-12 18:52:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-12 18:52:36,114 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-12 18:52:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:36,160 INFO L225 Difference]: With dead ends: 8576 [2020-10-12 18:52:36,160 INFO L226 Difference]: Without dead ends: 7816 [2020-10-12 18:52:36,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2096 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1259, Invalid=5383, Unknown=0, NotChecked=0, Total=6642 [2020-10-12 18:52:36,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7816 states. [2020-10-12 18:52:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7816 to 6707. [2020-10-12 18:52:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6707 states. [2020-10-12 18:52:36,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6707 states to 6707 states and 9750 transitions. [2020-10-12 18:52:36,524 INFO L78 Accepts]: Start accepts. Automaton has 6707 states and 9750 transitions. Word has length 82 [2020-10-12 18:52:36,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:36,524 INFO L479 AbstractCegarLoop]: Abstraction has 6707 states and 9750 transitions. [2020-10-12 18:52:36,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:52:36,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6707 states and 9750 transitions. [2020-10-12 18:52:36,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:52:36,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:36,527 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] [2020-10-12 18:52:36,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:52:36,528 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:36,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:36,528 INFO L82 PathProgramCache]: Analyzing trace with hash 821469408, now seen corresponding path program 1 times [2020-10-12 18:52:36,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:36,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568791634] [2020-10-12 18:52:36,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:36,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:36,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:36,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:36,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:36,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:36,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:37,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:39,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:52:41,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:52:41,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:52:41,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:52:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 18:52:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 18:52:41,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:41,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:41,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:41,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:41,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:41,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:41,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:41,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:41,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:52:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:41,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:52:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:41,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:41,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:41,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:52:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:52:41,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:41,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:41,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:52:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:52:41,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:41,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:52:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:52:41,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:41,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:52:41,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:52:41,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:41,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:52:41,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:41,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:52:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:41,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:41,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:52:41,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:41,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:41,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:52:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:41,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:41,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:52:41,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:52:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:41,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568791634] [2020-10-12 18:52:41,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:41,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:52:41,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558925015] [2020-10-12 18:52:41,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:52:41,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:41,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:52:41,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:52:41,911 INFO L87 Difference]: Start difference. First operand 6707 states and 9750 transitions. Second operand 16 states. [2020-10-12 18:52:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:44,841 INFO L93 Difference]: Finished difference Result 9428 states and 13409 transitions. [2020-10-12 18:52:44,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 18:52:44,842 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 85 [2020-10-12 18:52:44,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:44,871 INFO L225 Difference]: With dead ends: 9428 [2020-10-12 18:52:44,871 INFO L226 Difference]: Without dead ends: 7632 [2020-10-12 18:52:44,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=262, Invalid=998, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 18:52:44,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7632 states. [2020-10-12 18:52:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7632 to 6970. [2020-10-12 18:52:45,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6970 states. [2020-10-12 18:52:45,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6970 states to 6970 states and 10134 transitions. [2020-10-12 18:52:45,313 INFO L78 Accepts]: Start accepts. Automaton has 6970 states and 10134 transitions. Word has length 85 [2020-10-12 18:52:45,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:45,314 INFO L479 AbstractCegarLoop]: Abstraction has 6970 states and 10134 transitions. [2020-10-12 18:52:45,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:52:45,314 INFO L276 IsEmpty]: Start isEmpty. Operand 6970 states and 10134 transitions. [2020-10-12 18:52:45,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:52:45,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:45,317 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] [2020-10-12 18:52:45,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:52:45,317 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:45,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:45,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1269568358, now seen corresponding path program 1 times [2020-10-12 18:52:45,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:45,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282156560] [2020-10-12 18:52:45,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:45,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:45,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:45,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:45,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:45,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:46,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:48,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:50,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:52:50,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:52:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:52:50,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:52:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-12 18:52:50,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:52:50,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:50,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:50,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:50,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:50,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:50,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:50,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:50,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:50,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:52:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:50,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:52:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:50,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:50,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:50,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:50,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:50,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:52:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:50,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:50,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:52:50,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:50,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:50,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:52:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:52:50,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:50,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:52:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:50,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:50,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:50,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:50,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:50,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:50,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:50,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:50,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:50,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:50,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:52:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:50,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:50,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:52:50,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:52:50,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:52:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:52:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:50,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:52:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:50,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:50,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:50,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:50,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:52:50,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:50,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:50,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:52:50,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:50,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282156560] [2020-10-12 18:52:50,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:50,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:52:50,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201114598] [2020-10-12 18:52:50,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:52:50,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:50,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:52:50,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:52:50,676 INFO L87 Difference]: Start difference. First operand 6970 states and 10134 transitions. Second operand 16 states. [2020-10-12 18:52:53,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:53,381 INFO L93 Difference]: Finished difference Result 10672 states and 15185 transitions. [2020-10-12 18:52:53,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 18:52:53,387 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 85 [2020-10-12 18:52:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:53,414 INFO L225 Difference]: With dead ends: 10672 [2020-10-12 18:52:53,414 INFO L226 Difference]: Without dead ends: 7890 [2020-10-12 18:52:53,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=262, Invalid=998, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 18:52:53,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7890 states. [2020-10-12 18:52:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7890 to 7045. [2020-10-12 18:52:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7045 states. [2020-10-12 18:52:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 10236 transitions. [2020-10-12 18:52:53,861 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 10236 transitions. Word has length 85 [2020-10-12 18:52:53,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:53,861 INFO L479 AbstractCegarLoop]: Abstraction has 7045 states and 10236 transitions. [2020-10-12 18:52:53,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:52:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 10236 transitions. [2020-10-12 18:52:53,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:52:53,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:53,864 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] [2020-10-12 18:52:53,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:52:53,864 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:53,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:53,865 INFO L82 PathProgramCache]: Analyzing trace with hash 738669766, now seen corresponding path program 1 times [2020-10-12 18:52:53,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:53,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400118064] [2020-10-12 18:52:53,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:53,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:53,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:53,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:54,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:54,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:54,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:54,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:58,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:58,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:52:58,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:52:58,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:52:58,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:52:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 18:52:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:52:58,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:59,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:59,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:59,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:59,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:59,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:59,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:59,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:59,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:59,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:59,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:59,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:59,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:59,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:59,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:59,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:59,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:59,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:59,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:59,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:52:59,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:59,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:52:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:59,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:59,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:59,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:59,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:59,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:59,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:59,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:59,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:59,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:59,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:52:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:59,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:59,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:59,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:59,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:59,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:59,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:52:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:59,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:59,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:59,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:52:59,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:59,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:59,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:52:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:59,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:52:59,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:59,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:52:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:59,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:59,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:59,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:52:59,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:52:59,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:52:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:52:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:52:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:59,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:59,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:59,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:59,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:52:59,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:52:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:59,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400118064] [2020-10-12 18:52:59,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:59,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:52:59,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455638438] [2020-10-12 18:52:59,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:52:59,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:59,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:52:59,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:52:59,241 INFO L87 Difference]: Start difference. First operand 7045 states and 10236 transitions. Second operand 16 states. [2020-10-12 18:53:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:01,942 INFO L93 Difference]: Finished difference Result 11454 states and 16279 transitions. [2020-10-12 18:53:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 18:53:01,943 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 85 [2020-10-12 18:53:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:01,967 INFO L225 Difference]: With dead ends: 11454 [2020-10-12 18:53:01,967 INFO L226 Difference]: Without dead ends: 7999 [2020-10-12 18:53:01,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 18:53:01,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7999 states. [2020-10-12 18:53:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7999 to 7153. [2020-10-12 18:53:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7153 states. [2020-10-12 18:53:02,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7153 states to 7153 states and 10389 transitions. [2020-10-12 18:53:02,454 INFO L78 Accepts]: Start accepts. Automaton has 7153 states and 10389 transitions. Word has length 85 [2020-10-12 18:53:02,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:02,454 INFO L479 AbstractCegarLoop]: Abstraction has 7153 states and 10389 transitions. [2020-10-12 18:53:02,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:53:02,454 INFO L276 IsEmpty]: Start isEmpty. Operand 7153 states and 10389 transitions. [2020-10-12 18:53:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:53:02,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:02,457 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] [2020-10-12 18:53:02,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:53:02,457 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:02,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:02,458 INFO L82 PathProgramCache]: Analyzing trace with hash 563130070, now seen corresponding path program 1 times [2020-10-12 18:53:02,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:02,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212411952] [2020-10-12 18:53:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:02,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:02,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:02,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:02,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:02,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:02,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:02,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:02,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:07,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:07,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:53:07,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:53:07,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:53:07,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:53:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:53:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:53:07,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:07,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:07,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:07,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:07,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:07,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:07,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:53:07,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:07,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:07,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:07,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:53:07,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:07,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:07,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:07,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:07,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:07,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:07,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:07,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:53:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:53:07,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:07,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:53:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:07,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:07,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:07,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:07,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:07,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:53:07,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:07,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:07,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:07,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:07,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:07,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 18:53:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:07,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:07,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:07,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:07,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:07,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:53:07,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:07,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:53:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:07,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:07,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:07,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:07,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:07,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:07,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:07,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:07,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:53:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:07,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:07,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:07,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:07,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:07,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:07,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:07,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:07,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:53:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:07,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:07,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:07,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:53:07,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:07,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:07,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:53:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:07,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:07,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:53:07,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212411952] [2020-10-12 18:53:07,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:07,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:53:07,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852031421] [2020-10-12 18:53:07,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:53:07,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:07,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:53:07,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:53:07,842 INFO L87 Difference]: Start difference. First operand 7153 states and 10389 transitions. Second operand 14 states. [2020-10-12 18:53:08,086 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2020-10-12 18:53:08,624 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 116 [2020-10-12 18:53:10,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:10,727 INFO L93 Difference]: Finished difference Result 13928 states and 20127 transitions. [2020-10-12 18:53:10,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:53:10,728 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-12 18:53:10,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:10,752 INFO L225 Difference]: With dead ends: 13928 [2020-10-12 18:53:10,753 INFO L226 Difference]: Without dead ends: 10667 [2020-10-12 18:53:10,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2020-10-12 18:53:10,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2020-10-12 18:53:11,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 8152. [2020-10-12 18:53:11,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8152 states. [2020-10-12 18:53:11,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8152 states to 8152 states and 11884 transitions. [2020-10-12 18:53:11,317 INFO L78 Accepts]: Start accepts. Automaton has 8152 states and 11884 transitions. Word has length 85 [2020-10-12 18:53:11,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:11,317 INFO L479 AbstractCegarLoop]: Abstraction has 8152 states and 11884 transitions. [2020-10-12 18:53:11,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:53:11,317 INFO L276 IsEmpty]: Start isEmpty. Operand 8152 states and 11884 transitions. [2020-10-12 18:53:11,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:53:11,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:11,320 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] [2020-10-12 18:53:11,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:53:11,321 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:11,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:11,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1379781078, now seen corresponding path program 1 times [2020-10-12 18:53:11,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:11,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700223749] [2020-10-12 18:53:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:11,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:11,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:11,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:11,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:11,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:11,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:16,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:53:16,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:53:16,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:53:16,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:53:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:53:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 18:53:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:16,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:16,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:16,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:53:16,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:53:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:16,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:16,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:16,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:16,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:53:16,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:53:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:53:16,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:16,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:53:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:16,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:16,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:16,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:16,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:53:16,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:16,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:16,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:16,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:53:16,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:16,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 18:53:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:16,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:16,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:16,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:16,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:16,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:16,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:53:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:16,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:16,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:16,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:16,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 18:53:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:16,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:16,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:53:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:16,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:16,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:16,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:16,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:16,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:16,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:16,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:16,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:16,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:16,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:53:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:16,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:16,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:53:16,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:16,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:53:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:16,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:53:16,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700223749] [2020-10-12 18:53:16,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:16,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:53:16,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095111052] [2020-10-12 18:53:16,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:53:16,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:16,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:53:16,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:53:16,715 INFO L87 Difference]: Start difference. First operand 8152 states and 11884 transitions. Second operand 14 states. [2020-10-12 18:53:17,306 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:53:18,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:18,922 INFO L93 Difference]: Finished difference Result 18027 states and 26167 transitions. [2020-10-12 18:53:18,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:53:18,923 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-12 18:53:18,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:18,958 INFO L225 Difference]: With dead ends: 18027 [2020-10-12 18:53:18,958 INFO L226 Difference]: Without dead ends: 11571 [2020-10-12 18:53:18,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=257, Invalid=673, Unknown=0, NotChecked=0, Total=930 [2020-10-12 18:53:18,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11571 states. [2020-10-12 18:53:19,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11571 to 8241. [2020-10-12 18:53:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8241 states. [2020-10-12 18:53:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8241 states to 8241 states and 12024 transitions. [2020-10-12 18:53:19,470 INFO L78 Accepts]: Start accepts. Automaton has 8241 states and 12024 transitions. Word has length 85 [2020-10-12 18:53:19,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:19,471 INFO L479 AbstractCegarLoop]: Abstraction has 8241 states and 12024 transitions. [2020-10-12 18:53:19,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:53:19,471 INFO L276 IsEmpty]: Start isEmpty. Operand 8241 states and 12024 transitions. [2020-10-12 18:53:19,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 18:53:19,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:19,479 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:19,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:53:19,479 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:19,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:19,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1459206233, now seen corresponding path program 1 times [2020-10-12 18:53:19,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:19,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855251387] [2020-10-12 18:53:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:19,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:19,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:19,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:19,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:19,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:19,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-12 18:53:24,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:53:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 18:53:24,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 18:53:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:53:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:24,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:24,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:24,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:24,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:24,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:24,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:53:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:24,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:24,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:53:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:24,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:24,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:53:24,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:53:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:24,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:24,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:53:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:24,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:24,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:53:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:24,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:24,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:53:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:24,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:24,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:24,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:24,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:53:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:24,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:24,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:53:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:24,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:24,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:53:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:24,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:24,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:53:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:24,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:24,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:24,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:24,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:24,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 18:53:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:24,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:24,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:24,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:24,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:24,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:24,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:53:24,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:24,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-12 18:53:24,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855251387] [2020-10-12 18:53:24,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:53:24,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:53:24,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658148658] [2020-10-12 18:53:24,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:53:24,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:24,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:53:24,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:53:24,861 INFO L87 Difference]: Start difference. First operand 8241 states and 12024 transitions. Second operand 10 states. [2020-10-12 18:53:26,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:26,943 INFO L93 Difference]: Finished difference Result 22534 states and 32631 transitions. [2020-10-12 18:53:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:53:26,944 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 125 [2020-10-12 18:53:26,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:26,983 INFO L225 Difference]: With dead ends: 22534 [2020-10-12 18:53:26,983 INFO L226 Difference]: Without dead ends: 14501 [2020-10-12 18:53:27,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:53:27,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14501 states. [2020-10-12 18:53:27,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14501 to 13204. [2020-10-12 18:53:27,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13204 states. [2020-10-12 18:53:27,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13204 states to 13204 states and 19000 transitions. [2020-10-12 18:53:27,774 INFO L78 Accepts]: Start accepts. Automaton has 13204 states and 19000 transitions. Word has length 125 [2020-10-12 18:53:27,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:27,774 INFO L479 AbstractCegarLoop]: Abstraction has 13204 states and 19000 transitions. [2020-10-12 18:53:27,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:53:27,774 INFO L276 IsEmpty]: Start isEmpty. Operand 13204 states and 19000 transitions. [2020-10-12 18:53:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-12 18:53:27,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:27,785 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:27,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 18:53:27,786 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:27,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:27,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1969999284, now seen corresponding path program 1 times [2020-10-12 18:53:27,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:27,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069041779] [2020-10-12 18:53:27,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:27,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:27,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:27,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:27,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:27,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:32,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:32,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 18:53:32,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:53:32,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:53:32,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:32,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:32,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:53:32,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:53:32,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:32,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:32,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:32,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:32,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:32,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:32,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:32,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:32,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:32,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:32,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:32,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:32,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:32,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:32,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:53:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:32,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:53:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:32,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:32,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:32,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:32,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:32,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:32,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:32,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:53:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:32,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:32,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:32,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:32,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:32,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:53:32,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:32,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:32,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:32,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:53:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:33,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:33,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:53:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:33,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:33,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:53:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:33,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:33,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:53:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:33,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:33,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:53:33,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:53:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:33,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:33,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:53:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:33,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:33,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:53:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:53:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:33,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:33,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:53:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:33,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:33,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:53:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:33,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:33,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:33,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:33,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:33,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:33,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:53:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:33,157 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 18:53:33,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069041779] [2020-10-12 18:53:33,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:53:33,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:53:33,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247173874] [2020-10-12 18:53:33,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:53:33,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:33,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:53:33,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:53:33,160 INFO L87 Difference]: Start difference. First operand 13204 states and 19000 transitions. Second operand 10 states. [2020-10-12 18:53:35,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:35,241 INFO L93 Difference]: Finished difference Result 26731 states and 38212 transitions. [2020-10-12 18:53:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:53:35,244 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2020-10-12 18:53:35,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:35,270 INFO L225 Difference]: With dead ends: 26731 [2020-10-12 18:53:35,270 INFO L226 Difference]: Without dead ends: 13719 [2020-10-12 18:53:35,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:53:35,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13719 states. [2020-10-12 18:53:36,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13719 to 12752. [2020-10-12 18:53:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12752 states. [2020-10-12 18:53:36,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12752 states to 12752 states and 18331 transitions. [2020-10-12 18:53:36,065 INFO L78 Accepts]: Start accepts. Automaton has 12752 states and 18331 transitions. Word has length 126 [2020-10-12 18:53:36,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:36,065 INFO L479 AbstractCegarLoop]: Abstraction has 12752 states and 18331 transitions. [2020-10-12 18:53:36,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:53:36,065 INFO L276 IsEmpty]: Start isEmpty. Operand 12752 states and 18331 transitions. [2020-10-12 18:53:36,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-12 18:53:36,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:36,074 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:36,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 18:53:36,074 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:36,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:36,074 INFO L82 PathProgramCache]: Analyzing trace with hash -298753434, now seen corresponding path program 2 times [2020-10-12 18:53:36,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:36,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902349897] [2020-10-12 18:53:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:36,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:36,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:36,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:36,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:36,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 18:53:41,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:53:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:53:41,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 18:53:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:53:41,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:41,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:41,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:41,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:41,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:41,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:41,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:53:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:41,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:41,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:53:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:41,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:41,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:41,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:53:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:41,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:41,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:53:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:41,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:41,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:53:41,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:53:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:41,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:41,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:41,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:53:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:41,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:41,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:41,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:41,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:53:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:41,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:41,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:53:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:41,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:41,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:41,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:41,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:53:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:41,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:41,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:41,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:41,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:41,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:53:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:41,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:41,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:41,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:53:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:41,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:41,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:41,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:41,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:41,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:41,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:53:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:41,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:41,391 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-12 18:53:41,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902349897] [2020-10-12 18:53:41,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:53:41,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:53:41,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220486287] [2020-10-12 18:53:41,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:53:41,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:41,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:53:41,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:53:41,393 INFO L87 Difference]: Start difference. First operand 12752 states and 18331 transitions. Second operand 10 states. [2020-10-12 18:53:43,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:43,767 INFO L93 Difference]: Finished difference Result 37825 states and 54059 transitions. [2020-10-12 18:53:43,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:53:43,768 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2020-10-12 18:53:43,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:43,832 INFO L225 Difference]: With dead ends: 37825 [2020-10-12 18:53:43,832 INFO L226 Difference]: Without dead ends: 25265 [2020-10-12 18:53:43,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:53:43,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25265 states. [2020-10-12 18:53:45,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25265 to 22648. [2020-10-12 18:53:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22648 states. [2020-10-12 18:53:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22648 states to 22648 states and 31967 transitions. [2020-10-12 18:53:45,195 INFO L78 Accepts]: Start accepts. Automaton has 22648 states and 31967 transitions. Word has length 126 [2020-10-12 18:53:45,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:45,195 INFO L479 AbstractCegarLoop]: Abstraction has 22648 states and 31967 transitions. [2020-10-12 18:53:45,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:53:45,196 INFO L276 IsEmpty]: Start isEmpty. Operand 22648 states and 31967 transitions. [2020-10-12 18:53:45,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 18:53:45,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:45,206 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:45,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 18:53:45,206 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:45,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:45,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1023404843, now seen corresponding path program 1 times [2020-10-12 18:53:45,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:45,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122919577] [2020-10-12 18:53:45,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:49,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 18:53:50,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:53:50,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:53:50,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:53:50,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:53:50,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 18:53:50,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:50,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:50,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:50,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:50,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:53:50,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:53:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:50,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:53:50,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:50,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:53:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:50,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:50,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:53:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:53:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:50,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:50,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:53:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:50,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:50,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:53:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:53:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:50,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:50,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:53:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:50,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:50,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 18:53:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:50,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:53:50,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:53:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:50,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:50,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:50,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:53:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:50,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:50,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:50,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:53:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:50,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:50,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-12 18:53:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:50,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:50,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:50,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:53:50,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,676 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 18:53:50,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122919577] [2020-10-12 18:53:50,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:53:50,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 18:53:50,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227799432] [2020-10-12 18:53:50,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:53:50,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:50,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:53:50,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:53:50,678 INFO L87 Difference]: Start difference. First operand 22648 states and 31967 transitions. Second operand 14 states. [2020-10-12 18:53:50,904 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2020-10-12 18:53:51,196 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2020-10-12 18:53:51,602 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 120 [2020-10-12 18:53:53,570 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 111 [2020-10-12 18:53:55,586 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-12 18:53:55,792 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2020-10-12 18:53:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:57,675 INFO L93 Difference]: Finished difference Result 43639 states and 61329 transitions. [2020-10-12 18:53:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-12 18:53:57,676 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2020-10-12 18:53:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:57,736 INFO L225 Difference]: With dead ends: 43639 [2020-10-12 18:53:57,736 INFO L226 Difference]: Without dead ends: 30951 [2020-10-12 18:53:57,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=357, Invalid=1449, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 18:53:57,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30951 states. [2020-10-12 18:53:59,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30951 to 29680. [2020-10-12 18:53:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29680 states. [2020-10-12 18:53:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29680 states to 29680 states and 41904 transitions. [2020-10-12 18:53:59,179 INFO L78 Accepts]: Start accepts. Automaton has 29680 states and 41904 transitions. Word has length 127 [2020-10-12 18:53:59,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:59,179 INFO L479 AbstractCegarLoop]: Abstraction has 29680 states and 41904 transitions. [2020-10-12 18:53:59,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:53:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 29680 states and 41904 transitions. [2020-10-12 18:53:59,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 18:53:59,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:59,188 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:59,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 18:53:59,188 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:59,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:59,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1734947765, now seen corresponding path program 1 times [2020-10-12 18:53:59,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:59,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473267039] [2020-10-12 18:53:59,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:59,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:59,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:59,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:59,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:59,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:00,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:00,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:00,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:02,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 18:54:04,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:54:04,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:54:04,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:54:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 18:54:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 18:54:04,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:04,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:04,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:04,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:54:04,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:54:04,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:04,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:54:04,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:54:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:04,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:04,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:54:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:04,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:04,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:54:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:54:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:04,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:54:04,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:54:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:54:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:54:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:04,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:04,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:54:04,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:54:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:04,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:04,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:04,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:54:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:04,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:04,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:04,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:54:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:54:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:04,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:04,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:04,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:04,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:54:04,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:54:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:04,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:04,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 18:54:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:04,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:04,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:04,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 18:54:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:04,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:04,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:04,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:04,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:04,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:04,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:04,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:04,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 18:54:04,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473267039] [2020-10-12 18:54:04,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:54:04,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 18:54:04,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800985706] [2020-10-12 18:54:04,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 18:54:04,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:04,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 18:54:04,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:54:04,636 INFO L87 Difference]: Start difference. First operand 29680 states and 41904 transitions. Second operand 18 states. [2020-10-12 18:54:05,131 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:54:06,420 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:54:09,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:09,689 INFO L93 Difference]: Finished difference Result 40993 states and 56644 transitions. [2020-10-12 18:54:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:54:09,689 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 131 [2020-10-12 18:54:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:09,761 INFO L225 Difference]: With dead ends: 40993 [2020-10-12 18:54:09,762 INFO L226 Difference]: Without dead ends: 33243 [2020-10-12 18:54:09,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=411, Invalid=1751, Unknown=0, NotChecked=0, Total=2162 [2020-10-12 18:54:09,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33243 states. [2020-10-12 18:54:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33243 to 30277. [2020-10-12 18:54:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30277 states. [2020-10-12 18:54:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30277 states to 30277 states and 42748 transitions. [2020-10-12 18:54:12,415 INFO L78 Accepts]: Start accepts. Automaton has 30277 states and 42748 transitions. Word has length 131 [2020-10-12 18:54:12,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:12,415 INFO L479 AbstractCegarLoop]: Abstraction has 30277 states and 42748 transitions. [2020-10-12 18:54:12,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 18:54:12,415 INFO L276 IsEmpty]: Start isEmpty. Operand 30277 states and 42748 transitions. [2020-10-12 18:54:12,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 18:54:12,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:12,424 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:12,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 18:54:12,424 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:12,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:12,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1473929383, now seen corresponding path program 1 times [2020-10-12 18:54:12,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:12,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784297395] [2020-10-12 18:54:12,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:12,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:12,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:12,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:12,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:13,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:13,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:13,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:14,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 18:54:17,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:54:17,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:54:17,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:54:17,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 18:54:17,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 18:54:17,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:17,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:17,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:17,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:54:17,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:17,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:54:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:54:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:17,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:17,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:54:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:17,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:17,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:54:17,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:54:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:17,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:54:17,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:54:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:54:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:54:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:17,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:17,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:54:17,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:54:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:17,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:17,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:17,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:54:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:54:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:17,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:17,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:17,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:54:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:17,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:17,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:54:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:17,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:17,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:17,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:17,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:54:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:17,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:17,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:17,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:17,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:54:17,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:17,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 18:54:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:17,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:17,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:17,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:17,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:17,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:17,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:17,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:17,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:17,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:17,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:17,881 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 18:54:17,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784297395] [2020-10-12 18:54:17,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:54:17,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 18:54:17,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299105310] [2020-10-12 18:54:17,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:54:17,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:17,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:54:17,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:54:17,884 INFO L87 Difference]: Start difference. First operand 30277 states and 42748 transitions. Second operand 17 states. [2020-10-12 18:54:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:23,797 INFO L93 Difference]: Finished difference Result 49998 states and 69064 transitions. [2020-10-12 18:54:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 18:54:23,798 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-12 18:54:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:23,867 INFO L225 Difference]: With dead ends: 49998 [2020-10-12 18:54:23,867 INFO L226 Difference]: Without dead ends: 34707 [2020-10-12 18:54:23,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=420, Invalid=1932, Unknown=0, NotChecked=0, Total=2352 [2020-10-12 18:54:23,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34707 states. [2020-10-12 18:54:25,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34707 to 31037. [2020-10-12 18:54:25,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31037 states. [2020-10-12 18:54:25,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31037 states to 31037 states and 43854 transitions. [2020-10-12 18:54:25,307 INFO L78 Accepts]: Start accepts. Automaton has 31037 states and 43854 transitions. Word has length 131 [2020-10-12 18:54:25,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:25,307 INFO L479 AbstractCegarLoop]: Abstraction has 31037 states and 43854 transitions. [2020-10-12 18:54:25,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:54:25,307 INFO L276 IsEmpty]: Start isEmpty. Operand 31037 states and 43854 transitions. [2020-10-12 18:54:25,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 18:54:25,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:25,324 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:25,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 18:54:25,325 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:25,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:25,325 INFO L82 PathProgramCache]: Analyzing trace with hash 899828545, now seen corresponding path program 1 times [2020-10-12 18:54:25,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:25,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136464007] [2020-10-12 18:54:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:25,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:25,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:25,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:25,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:26,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:26,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:26,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:26,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking...