/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:19:25,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:19:25,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:19:25,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:19:25,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:19:25,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:19:25,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:19:25,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:19:25,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:19:25,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:19:25,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:19:25,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:19:25,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:19:25,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:19:25,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:19:25,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:19:25,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:19:25,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:19:25,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:19:25,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:19:25,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:19:25,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:19:25,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:19:25,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:19:25,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:19:25,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:19:25,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:19:25,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:19:25,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:19:25,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:19:25,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:19:25,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:19:25,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:19:25,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:19:25,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:19:25,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:19:25,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:19:25,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:19:25,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:19:25,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:19:25,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:19:25,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 03:19:25,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:19:25,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:19:25,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:19:25,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:19:25,184 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:19:25,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:19:25,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:19:25,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:19:25,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:19:25,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:19:25,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:19:25,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:19:25,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:19:25,186 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:19:25,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:19:25,187 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:19:25,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:19:25,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:19:25,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:19:25,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:19:25,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:19:25,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:19:25,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:19:25,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:19:25,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:19:25,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:19:25,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:19:25,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:19:25,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:19:25,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:19:25,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:19:25,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:19:25,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:19:25,586 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:19:25,586 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:19:25,587 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:19:25,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67654b640/a352d1c551e3455c8b21eb01f29d5c91/FLAG122366107 [2020-10-15 03:19:26,248 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:19:26,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:19:26,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67654b640/a352d1c551e3455c8b21eb01f29d5c91/FLAG122366107 [2020-10-15 03:19:26,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67654b640/a352d1c551e3455c8b21eb01f29d5c91 [2020-10-15 03:19:26,457 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:19:26,459 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:19:26,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:19:26,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:19:26,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:19:26,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:19:26" (1/1) ... [2020-10-15 03:19:26,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18839cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:26, skipping insertion in model container [2020-10-15 03:19:26,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:19:26" (1/1) ... [2020-10-15 03:19:26,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:19:26,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:19:27,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:19:27,610 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:19:28,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:19:28,026 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:19:28,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28 WrapperNode [2020-10-15 03:19:28,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:19:28,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:19:28,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:19:28,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:19:28,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (1/1) ... [2020-10-15 03:19:28,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (1/1) ... [2020-10-15 03:19:28,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (1/1) ... [2020-10-15 03:19:28,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (1/1) ... [2020-10-15 03:19:28,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (1/1) ... [2020-10-15 03:19:28,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (1/1) ... [2020-10-15 03:19:28,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (1/1) ... [2020-10-15 03:19:28,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:19:28,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:19:28,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:19:28,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:19:28,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:19:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:19:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:19:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:19:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:19:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:19:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:19:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:19:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:19:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:19:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:19:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:19:28,378 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:19:28,378 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:19:28,378 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:19:28,378 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:19:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:19:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:19:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:19:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:19:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:19:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:19:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:19:30,616 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:19:30,616 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:19:30,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:19:30 BoogieIcfgContainer [2020-10-15 03:19:30,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:19:30,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:19:30,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:19:30,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:19:30,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:19:26" (1/3) ... [2020-10-15 03:19:30,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a57f257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:19:30, skipping insertion in model container [2020-10-15 03:19:30,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:28" (2/3) ... [2020-10-15 03:19:30,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a57f257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:19:30, skipping insertion in model container [2020-10-15 03:19:30,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:19:30" (3/3) ... [2020-10-15 03:19:30,632 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:19:30,645 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:19:30,653 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-15 03:19:30,669 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-15 03:19:30,698 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:19:30,698 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:19:30,698 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:19:30,699 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:19:30,699 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:19:30,699 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:19:30,699 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:19:30,699 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:19:30,730 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states. [2020-10-15 03:19:30,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:19:30,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:30,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:19:30,748 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:30,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:30,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1666706590, now seen corresponding path program 1 times [2020-10-15 03:19:30,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:30,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3863326] [2020-10-15 03:19:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:31,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:31,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:32,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:32,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:32,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:33,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:33,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:35,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:36,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:36,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:19:36,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:19:36,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-15 03:19:36,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:36,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:19:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:19:36,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 03:19:36,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:19:36,584 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:36,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:36,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:36,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:36,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:36,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:36,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:19:36,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:36,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:36,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:36,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3863326] [2020-10-15 03:19:36,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:36,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:19:36,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479685602] [2020-10-15 03:19:36,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:19:36,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:36,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:19:36,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:19:36,676 INFO L87 Difference]: Start difference. First operand 542 states. Second operand 6 states. [2020-10-15 03:19:37,119 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-15 03:19:41,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:41,694 INFO L93 Difference]: Finished difference Result 1222 states and 2056 transitions. [2020-10-15 03:19:41,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:19:41,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-15 03:19:41,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:41,746 INFO L225 Difference]: With dead ends: 1222 [2020-10-15 03:19:41,746 INFO L226 Difference]: Without dead ends: 1124 [2020-10-15 03:19:41,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:19:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-10-15 03:19:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 882. [2020-10-15 03:19:41,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-10-15 03:19:41,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1177 transitions. [2020-10-15 03:19:41,932 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1177 transitions. Word has length 63 [2020-10-15 03:19:41,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:41,934 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1177 transitions. [2020-10-15 03:19:41,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:19:41,935 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1177 transitions. [2020-10-15 03:19:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:19:41,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:41,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:19:41,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:19:41,948 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:41,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:41,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1660141307, now seen corresponding path program 1 times [2020-10-15 03:19:41,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:41,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973983936] [2020-10-15 03:19:41,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:42,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:42,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:42,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:42,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:42,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:47,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:47,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:19:47,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:19:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:19:47,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:47,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:19:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:19:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 03:19:47,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-15 03:19:47,549 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:47,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:47,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:47,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:47,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:47,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:47,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 03:19:47,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:47,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:19:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:19:47,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 03:19:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:47,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973983936] [2020-10-15 03:19:47,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:47,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:19:47,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740587164] [2020-10-15 03:19:47,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:19:47,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:47,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:19:47,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:19:47,752 INFO L87 Difference]: Start difference. First operand 882 states and 1177 transitions. Second operand 6 states. [2020-10-15 03:19:48,051 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 03:19:49,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:49,798 INFO L93 Difference]: Finished difference Result 1082 states and 1430 transitions. [2020-10-15 03:19:49,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:19:49,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-15 03:19:49,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:49,806 INFO L225 Difference]: With dead ends: 1082 [2020-10-15 03:19:49,806 INFO L226 Difference]: Without dead ends: 654 [2020-10-15 03:19:49,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:19:49,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2020-10-15 03:19:49,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 544. [2020-10-15 03:19:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-15 03:19:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 718 transitions. [2020-10-15 03:19:49,841 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 718 transitions. Word has length 63 [2020-10-15 03:19:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:49,842 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 718 transitions. [2020-10-15 03:19:49,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:19:49,842 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 718 transitions. [2020-10-15 03:19:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:19:49,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:49,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:19:49,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:19:49,844 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:49,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:49,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1556222906, now seen corresponding path program 1 times [2020-10-15 03:19:49,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:49,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811339995] [2020-10-15 03:19:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:49,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:49,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:50,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:50,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:50,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:50,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:51,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:51,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:54,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:54,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:54,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:19:54,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:19:54,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:19:54,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:54,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:54,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:19:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:19:54,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:55,296 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:19:55,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:55,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:55,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:55,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:55,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:55,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:19:55,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:55,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:55,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:55,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:55,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:55,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:55,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811339995] [2020-10-15 03:19:55,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:55,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:19:55,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436085452] [2020-10-15 03:19:55,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:19:55,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:55,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:19:55,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:19:55,341 INFO L87 Difference]: Start difference. First operand 544 states and 718 transitions. Second operand 9 states. [2020-10-15 03:19:55,624 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:19:57,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:57,928 INFO L93 Difference]: Finished difference Result 1204 states and 1633 transitions. [2020-10-15 03:19:57,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 03:19:57,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-15 03:19:57,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:57,935 INFO L225 Difference]: With dead ends: 1204 [2020-10-15 03:19:57,936 INFO L226 Difference]: Without dead ends: 1182 [2020-10-15 03:19:57,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:19:57,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2020-10-15 03:19:57,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 537. [2020-10-15 03:19:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-15 03:19:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 706 transitions. [2020-10-15 03:19:57,967 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 706 transitions. Word has length 63 [2020-10-15 03:19:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:57,967 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 706 transitions. [2020-10-15 03:19:57,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:19:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 706 transitions. [2020-10-15 03:19:57,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:19:57,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:57,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:19:57,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:19:57,970 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:57,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1028179211, now seen corresponding path program 1 times [2020-10-15 03:19:57,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:57,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209988642] [2020-10-15 03:19:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:58,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:58,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:58,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:58,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:58,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:02,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:03,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:03,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:20:03,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:20:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-15 03:20:03,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:03,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:20:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 03:20:03,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:03,351 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:03,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:03,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:03,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:03,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:03,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:03,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:20:03,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:03,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:03,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:03,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:03,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:03,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:20:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:03,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209988642] [2020-10-15 03:20:03,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:03,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:20:03,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680776491] [2020-10-15 03:20:03,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:20:03,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:03,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:20:03,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:20:03,397 INFO L87 Difference]: Start difference. First operand 537 states and 706 transitions. Second operand 9 states. [2020-10-15 03:20:03,684 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:20:05,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:05,687 INFO L93 Difference]: Finished difference Result 819 states and 1101 transitions. [2020-10-15 03:20:05,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:20:05,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-15 03:20:05,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:05,693 INFO L225 Difference]: With dead ends: 819 [2020-10-15 03:20:05,694 INFO L226 Difference]: Without dead ends: 807 [2020-10-15 03:20:05,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:20:05,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2020-10-15 03:20:05,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 532. [2020-10-15 03:20:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-10-15 03:20:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 699 transitions. [2020-10-15 03:20:05,729 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 699 transitions. Word has length 63 [2020-10-15 03:20:05,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:05,731 INFO L479 AbstractCegarLoop]: Abstraction has 532 states and 699 transitions. [2020-10-15 03:20:05,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:20:05,732 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 699 transitions. [2020-10-15 03:20:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:20:05,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:05,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:05,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:20:05,735 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:05,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:05,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1929658970, now seen corresponding path program 1 times [2020-10-15 03:20:05,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:05,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844104967] [2020-10-15 03:20:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:05,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:05,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:05,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:09,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:09,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:09,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:09,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:10,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:10,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:10,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:10,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:20:10,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:20:10,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:20:10,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:10,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 03:20:10,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:11,281 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:11,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:11,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:11,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:11,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:11,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:20:11,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:11,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:20:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:11,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844104967] [2020-10-15 03:20:11,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:11,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:11,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210254513] [2020-10-15 03:20:11,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:11,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:11,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:11,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:11,363 INFO L87 Difference]: Start difference. First operand 532 states and 699 transitions. Second operand 8 states. [2020-10-15 03:20:11,721 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-15 03:20:14,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:14,021 INFO L93 Difference]: Finished difference Result 951 states and 1290 transitions. [2020-10-15 03:20:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:20:14,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-15 03:20:14,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:14,027 INFO L225 Difference]: With dead ends: 951 [2020-10-15 03:20:14,027 INFO L226 Difference]: Without dead ends: 923 [2020-10-15 03:20:14,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:20:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-10-15 03:20:14,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 522. [2020-10-15 03:20:14,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-10-15 03:20:14,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 685 transitions. [2020-10-15 03:20:14,069 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 685 transitions. Word has length 63 [2020-10-15 03:20:14,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:14,070 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 685 transitions. [2020-10-15 03:20:14,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:14,070 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 685 transitions. [2020-10-15 03:20:14,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:20:14,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:14,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:14,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:20:14,072 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:14,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:14,072 INFO L82 PathProgramCache]: Analyzing trace with hash -882405207, now seen corresponding path program 1 times [2020-10-15 03:20:14,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:14,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523820634] [2020-10-15 03:20:14,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:15,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:15,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:17,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:17,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:17,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:17,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:19,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:19,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:20:19,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:20:19,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:20:19,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:19,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:19,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:20:19,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:19,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:20:19,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:20:19,584 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:19,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:19,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:19,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:19,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:19,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:19,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:20:19,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:19,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:19,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:20:19,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:19,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523820634] [2020-10-15 03:20:19,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:19,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:20:19,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596698533] [2020-10-15 03:20:19,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:20:19,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:19,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:20:19,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:20:19,650 INFO L87 Difference]: Start difference. First operand 522 states and 685 transitions. Second operand 9 states. [2020-10-15 03:20:20,041 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-15 03:20:22,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:22,513 INFO L93 Difference]: Finished difference Result 1200 states and 1614 transitions. [2020-10-15 03:20:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:20:22,513 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-15 03:20:22,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:22,518 INFO L225 Difference]: With dead ends: 1200 [2020-10-15 03:20:22,518 INFO L226 Difference]: Without dead ends: 1091 [2020-10-15 03:20:22,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:20:22,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2020-10-15 03:20:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 821. [2020-10-15 03:20:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-15 03:20:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1126 transitions. [2020-10-15 03:20:22,585 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1126 transitions. Word has length 63 [2020-10-15 03:20:22,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:22,585 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 1126 transitions. [2020-10-15 03:20:22,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:20:22,585 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1126 transitions. [2020-10-15 03:20:22,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:20:22,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:22,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:22,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:20:22,587 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:22,588 INFO L82 PathProgramCache]: Analyzing trace with hash -74454689, now seen corresponding path program 1 times [2020-10-15 03:20:22,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:22,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198253083] [2020-10-15 03:20:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:22,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:25,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:25,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:26,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:27,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:27,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:27,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:20:27,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:20:27,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:20:27,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:27,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 03:20:27,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:20:28,003 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:28,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:28,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:28,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:28,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:28,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:28,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:20:28,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:28,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:28,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:28,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:28,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:28,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:20:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:28,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198253083] [2020-10-15 03:20:28,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:28,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:28,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996150542] [2020-10-15 03:20:28,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:28,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:28,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:28,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:28,046 INFO L87 Difference]: Start difference. First operand 821 states and 1126 transitions. Second operand 8 states. [2020-10-15 03:20:28,344 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:20:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:30,752 INFO L93 Difference]: Finished difference Result 1912 states and 2741 transitions. [2020-10-15 03:20:30,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:20:30,752 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:20:30,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:30,759 INFO L225 Difference]: With dead ends: 1912 [2020-10-15 03:20:30,759 INFO L226 Difference]: Without dead ends: 1544 [2020-10-15 03:20:30,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:20:30,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2020-10-15 03:20:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 821. [2020-10-15 03:20:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-15 03:20:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1124 transitions. [2020-10-15 03:20:30,834 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1124 transitions. Word has length 64 [2020-10-15 03:20:30,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:30,834 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 1124 transitions. [2020-10-15 03:20:30,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:30,835 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1124 transitions. [2020-10-15 03:20:30,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:20:30,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:30,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:30,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:20:30,837 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:30,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:30,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1263831154, now seen corresponding path program 1 times [2020-10-15 03:20:30,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:30,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253952199] [2020-10-15 03:20:30,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:30,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:31,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:32,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:33,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:34,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:34,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:34,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:34,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:34,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:35,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:35,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:35,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:35,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:20:35,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-15 03:20:35,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:20:35,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:35,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:35,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:20:35,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:36,172 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:36,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:36,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:36,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:36,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:36,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:36,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:20:36,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:36,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:36,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:36,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253952199] [2020-10-15 03:20:36,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:36,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:36,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418647434] [2020-10-15 03:20:36,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:36,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:36,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:36,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:36,203 INFO L87 Difference]: Start difference. First operand 821 states and 1124 transitions. Second operand 8 states. [2020-10-15 03:20:36,508 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:20:39,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:39,410 INFO L93 Difference]: Finished difference Result 2738 states and 3966 transitions. [2020-10-15 03:20:39,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:20:39,411 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:20:39,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:39,420 INFO L225 Difference]: With dead ends: 2738 [2020-10-15 03:20:39,421 INFO L226 Difference]: Without dead ends: 2421 [2020-10-15 03:20:39,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:20:39,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2020-10-15 03:20:39,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 1680. [2020-10-15 03:20:39,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-10-15 03:20:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2387 transitions. [2020-10-15 03:20:39,580 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2387 transitions. Word has length 64 [2020-10-15 03:20:39,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:39,580 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2387 transitions. [2020-10-15 03:20:39,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2387 transitions. [2020-10-15 03:20:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:20:39,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:39,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:39,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:20:39,588 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:39,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:39,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1562693406, now seen corresponding path program 1 times [2020-10-15 03:20:39,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:39,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743023757] [2020-10-15 03:20:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:39,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:39,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:39,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:39,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:39,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:41,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:41,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:41,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:41,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:41,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:42,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:44,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:44,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:20:44,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:20:44,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:20:44,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:44,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:20:44,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:44,909 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:44,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:44,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:44,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:44,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:44,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:20:44,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:44,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:44,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743023757] [2020-10-15 03:20:44,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:44,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:44,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110119430] [2020-10-15 03:20:44,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:44,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:44,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:44,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:44,937 INFO L87 Difference]: Start difference. First operand 1680 states and 2387 transitions. Second operand 8 states. [2020-10-15 03:20:45,248 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:20:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:47,735 INFO L93 Difference]: Finished difference Result 3799 states and 5621 transitions. [2020-10-15 03:20:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:20:47,736 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:20:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:47,746 INFO L225 Difference]: With dead ends: 3799 [2020-10-15 03:20:47,746 INFO L226 Difference]: Without dead ends: 3160 [2020-10-15 03:20:47,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:20:47,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2020-10-15 03:20:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 1680. [2020-10-15 03:20:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-10-15 03:20:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2386 transitions. [2020-10-15 03:20:47,969 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2386 transitions. Word has length 64 [2020-10-15 03:20:47,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:47,970 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2386 transitions. [2020-10-15 03:20:47,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2386 transitions. [2020-10-15 03:20:47,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:20:47,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:47,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:47,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:20:47,973 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:47,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:47,974 INFO L82 PathProgramCache]: Analyzing trace with hash 103950116, now seen corresponding path program 1 times [2020-10-15 03:20:47,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:47,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751472877] [2020-10-15 03:20:47,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:48,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:48,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:48,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:48,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:48,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:50,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:50,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:50,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:51,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:51,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:52,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:52,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:52,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:52,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:53,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:53,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:20:53,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:20:53,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:20:53,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:53,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:53,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:20:53,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:20:53,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:20:53,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:53,451 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:20:53,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:53,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:53,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:53,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:53,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:53,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:20:53,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:53,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:53,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:53,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751472877] [2020-10-15 03:20:53,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:53,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:20:53,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002030029] [2020-10-15 03:20:53,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:20:53,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:53,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:20:53,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:20:53,501 INFO L87 Difference]: Start difference. First operand 1680 states and 2386 transitions. Second operand 9 states. [2020-10-15 03:20:54,186 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 224 [2020-10-15 03:20:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:57,045 INFO L93 Difference]: Finished difference Result 2612 states and 3776 transitions. [2020-10-15 03:20:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:20:57,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-15 03:20:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:57,057 INFO L225 Difference]: With dead ends: 2612 [2020-10-15 03:20:57,057 INFO L226 Difference]: Without dead ends: 2164 [2020-10-15 03:20:57,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:20:57,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2020-10-15 03:20:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 1653. [2020-10-15 03:20:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1653 states. [2020-10-15 03:20:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2340 transitions. [2020-10-15 03:20:57,245 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2340 transitions. Word has length 64 [2020-10-15 03:20:57,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:57,245 INFO L479 AbstractCegarLoop]: Abstraction has 1653 states and 2340 transitions. [2020-10-15 03:20:57,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:20:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2340 transitions. [2020-10-15 03:20:57,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:20:57,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:57,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:20:57,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:20:57,248 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:57,248 INFO L82 PathProgramCache]: Analyzing trace with hash 668775028, now seen corresponding path program 1 times [2020-10-15 03:20:57,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:57,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298424629] [2020-10-15 03:20:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:57,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:58,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:58,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:58,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:58,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:58,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:58,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:59,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:59,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:00,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:01,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:01,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:02,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:02,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:21:02,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:21:02,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:21:02,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:02,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:21:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:21:02,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:02,560 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:02,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:02,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:02,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:02,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:02,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:21:02,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:02,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:02,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:02,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298424629] [2020-10-15 03:21:02,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:02,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:21:02,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57178091] [2020-10-15 03:21:02,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:21:02,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:02,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:21:02,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:02,588 INFO L87 Difference]: Start difference. First operand 1653 states and 2340 transitions. Second operand 8 states. [2020-10-15 03:21:02,890 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:21:05,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:05,638 INFO L93 Difference]: Finished difference Result 3337 states and 4886 transitions. [2020-10-15 03:21:05,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:21:05,639 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:21:05,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:05,649 INFO L225 Difference]: With dead ends: 3337 [2020-10-15 03:21:05,650 INFO L226 Difference]: Without dead ends: 3023 [2020-10-15 03:21:05,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:21:05,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2020-10-15 03:21:05,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1628. [2020-10-15 03:21:05,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1628 states. [2020-10-15 03:21:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2311 transitions. [2020-10-15 03:21:05,844 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2311 transitions. Word has length 64 [2020-10-15 03:21:05,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:05,844 INFO L479 AbstractCegarLoop]: Abstraction has 1628 states and 2311 transitions. [2020-10-15 03:21:05,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:21:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2311 transitions. [2020-10-15 03:21:05,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:21:05,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:05,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:05,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:21:05,848 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:21:05,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:05,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1606107799, now seen corresponding path program 1 times [2020-10-15 03:21:05,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:05,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161767105] [2020-10-15 03:21:05,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:05,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:05,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:05,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:06,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:06,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:06,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:07,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:07,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:07,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:07,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:10,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:10,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:21:10,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:21:10,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:21:10,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:10,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:21:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 03:21:10,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:11,164 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:11,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:11,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:11,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:11,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:11,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:11,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:21:11,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:11,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:11,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:11,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:11,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161767105] [2020-10-15 03:21:11,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:11,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:21:11,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624855994] [2020-10-15 03:21:11,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:21:11,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:11,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:21:11,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:21:11,191 INFO L87 Difference]: Start difference. First operand 1628 states and 2311 transitions. Second operand 7 states. [2020-10-15 03:21:11,490 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 03:21:14,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:14,801 INFO L93 Difference]: Finished difference Result 6013 states and 8940 transitions. [2020-10-15 03:21:14,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:21:14,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-15 03:21:14,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:14,818 INFO L225 Difference]: With dead ends: 6013 [2020-10-15 03:21:14,818 INFO L226 Difference]: Without dead ends: 5034 [2020-10-15 03:21:14,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:21:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2020-10-15 03:21:15,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 3652. [2020-10-15 03:21:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3652 states. [2020-10-15 03:21:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5356 transitions. [2020-10-15 03:21:15,179 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5356 transitions. Word has length 64 [2020-10-15 03:21:15,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:15,179 INFO L479 AbstractCegarLoop]: Abstraction has 3652 states and 5356 transitions. [2020-10-15 03:21:15,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:21:15,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5356 transitions. [2020-10-15 03:21:15,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:21:15,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:15,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:15,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:21:15,182 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:21:15,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:15,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1598011160, now seen corresponding path program 1 times [2020-10-15 03:21:15,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:15,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695109449] [2020-10-15 03:21:15,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:15,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:15,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:15,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:15,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:15,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:15,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:16,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:16,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:16,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:16,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:17,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:17,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:17,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:17,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:17,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:18,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:18,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:18,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:20,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:20,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:21:20,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:21:20,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:21:20,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:20,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:20,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:21:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 03:21:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:20,514 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:20,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:20,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:20,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:20,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:20,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:20,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:21:20,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:20,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:20,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:20,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:20,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:20,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695109449] [2020-10-15 03:21:20,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:20,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:21:20,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778838431] [2020-10-15 03:21:20,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:21:20,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:20,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:21:20,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:20,540 INFO L87 Difference]: Start difference. First operand 3652 states and 5356 transitions. Second operand 8 states. [2020-10-15 03:21:20,814 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:21:23,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:23,355 INFO L93 Difference]: Finished difference Result 6219 states and 9277 transitions. [2020-10-15 03:21:23,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:21:23,356 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:21:23,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:23,375 INFO L225 Difference]: With dead ends: 6219 [2020-10-15 03:21:23,375 INFO L226 Difference]: Without dead ends: 4939 [2020-10-15 03:21:23,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:21:23,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2020-10-15 03:21:23,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 3625. [2020-10-15 03:21:23,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3625 states. [2020-10-15 03:21:23,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5318 transitions. [2020-10-15 03:21:23,768 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5318 transitions. Word has length 64 [2020-10-15 03:21:23,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:23,768 INFO L479 AbstractCegarLoop]: Abstraction has 3625 states and 5318 transitions. [2020-10-15 03:21:23,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:21:23,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5318 transitions. [2020-10-15 03:21:23,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:21:23,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:23,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:23,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:21:23,772 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:21:23,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:23,772 INFO L82 PathProgramCache]: Analyzing trace with hash -788616055, now seen corresponding path program 1 times [2020-10-15 03:21:23,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:23,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97222221] [2020-10-15 03:21:23,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:23,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:23,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:23,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:23,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:24,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:24,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:24,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:24,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:24,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:27,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:27,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:27,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:27,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:27,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:28,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:28,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:21:28,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:21:28,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:21:28,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:28,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:21:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:21:28,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:29,101 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:29,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:29,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:29,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:29,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:21:29,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:29,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:29,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:29,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:29,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97222221] [2020-10-15 03:21:29,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:29,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:21:29,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956747437] [2020-10-15 03:21:29,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:21:29,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:29,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:21:29,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:29,131 INFO L87 Difference]: Start difference. First operand 3625 states and 5318 transitions. Second operand 8 states. [2020-10-15 03:21:29,429 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:21:31,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:31,852 INFO L93 Difference]: Finished difference Result 3758 states and 5444 transitions. [2020-10-15 03:21:31,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 03:21:31,853 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:21:31,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:31,860 INFO L225 Difference]: With dead ends: 3758 [2020-10-15 03:21:31,860 INFO L226 Difference]: Without dead ends: 3751 [2020-10-15 03:21:31,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:21:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3751 states. [2020-10-15 03:21:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3751 to 3625. [2020-10-15 03:21:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3625 states. [2020-10-15 03:21:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5316 transitions. [2020-10-15 03:21:32,338 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5316 transitions. Word has length 64 [2020-10-15 03:21:32,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:32,338 INFO L479 AbstractCegarLoop]: Abstraction has 3625 states and 5316 transitions. [2020-10-15 03:21:32,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:21:32,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5316 transitions. [2020-10-15 03:21:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:21:32,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:32,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:32,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:21:32,341 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:21:32,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:32,341 INFO L82 PathProgramCache]: Analyzing trace with hash 209384750, now seen corresponding path program 1 times [2020-10-15 03:21:32,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:32,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386451303] [2020-10-15 03:21:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:32,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:32,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:32,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:32,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:32,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:33,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:33,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:35,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:35,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:35,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:35,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:35,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:35,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:37,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:37,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:37,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:21:37,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:21:37,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:21:37,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:37,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:21:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:21:37,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:37,680 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:37,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:37,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:37,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:37,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:37,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:37,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:21:37,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:37,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:37,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:37,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386451303] [2020-10-15 03:21:37,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:37,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:21:37,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358157608] [2020-10-15 03:21:37,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:21:37,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:37,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:21:37,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:21:37,718 INFO L87 Difference]: Start difference. First operand 3625 states and 5316 transitions. Second operand 9 states. [2020-10-15 03:21:38,034 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-15 03:21:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:41,090 INFO L93 Difference]: Finished difference Result 5661 states and 8348 transitions. [2020-10-15 03:21:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 03:21:41,090 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-15 03:21:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:41,102 INFO L225 Difference]: With dead ends: 5661 [2020-10-15 03:21:41,102 INFO L226 Difference]: Without dead ends: 5655 [2020-10-15 03:21:41,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:21:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2020-10-15 03:21:41,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 3625. [2020-10-15 03:21:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3625 states. [2020-10-15 03:21:41,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5311 transitions. [2020-10-15 03:21:41,606 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5311 transitions. Word has length 64 [2020-10-15 03:21:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:41,606 INFO L479 AbstractCegarLoop]: Abstraction has 3625 states and 5311 transitions. [2020-10-15 03:21:41,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:21:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5311 transitions. [2020-10-15 03:21:41,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:21:41,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:41,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:41,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:21:41,609 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:21:41,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:41,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1381325977, now seen corresponding path program 1 times [2020-10-15 03:21:41,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:41,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921775774] [2020-10-15 03:21:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:41,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:41,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:41,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:41,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:41,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:42,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:45,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:45,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:45,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:45,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:45,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:46,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:46,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:46,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:21:46,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:21:46,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:21:46,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:46,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:21:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:21:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:46,924 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:46,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:46,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:46,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:46,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:46,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:46,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:21:46,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:46,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:46,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:46,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921775774] [2020-10-15 03:21:46,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:46,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:21:46,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336334235] [2020-10-15 03:21:46,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:21:46,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:46,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:21:46,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:46,951 INFO L87 Difference]: Start difference. First operand 3625 states and 5311 transitions. Second operand 8 states. [2020-10-15 03:21:47,247 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:21:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:50,247 INFO L93 Difference]: Finished difference Result 4613 states and 6743 transitions. [2020-10-15 03:21:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:21:50,247 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:21:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:50,259 INFO L225 Difference]: With dead ends: 4613 [2020-10-15 03:21:50,259 INFO L226 Difference]: Without dead ends: 4608 [2020-10-15 03:21:50,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:21:50,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4608 states. [2020-10-15 03:21:50,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4608 to 3625. [2020-10-15 03:21:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3625 states. [2020-10-15 03:21:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5309 transitions. [2020-10-15 03:21:50,758 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5309 transitions. Word has length 65 [2020-10-15 03:21:50,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:50,759 INFO L479 AbstractCegarLoop]: Abstraction has 3625 states and 5309 transitions. [2020-10-15 03:21:50,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:21:50,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5309 transitions. [2020-10-15 03:21:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:21:50,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:50,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:21:50,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:21:50,761 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:21:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:50,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1000678244, now seen corresponding path program 1 times [2020-10-15 03:21:50,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:50,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100052120] [2020-10-15 03:21:50,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:50,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:51,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:51,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:51,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:51,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:53,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:54,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:54,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:54,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:54,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:55,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:55,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:55,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:55,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:21:55,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:21:55,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:21:55,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:55,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:55,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:21:55,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:55,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:21:55,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:56,113 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:56,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:56,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:56,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:56,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:56,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:56,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:21:56,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:56,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:56,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:56,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:56,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:56,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100052120] [2020-10-15 03:21:56,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:56,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:21:56,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706117770] [2020-10-15 03:21:56,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:21:56,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:56,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:21:56,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:56,157 INFO L87 Difference]: Start difference. First operand 3625 states and 5309 transitions. Second operand 8 states. [2020-10-15 03:21:56,471 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:21:59,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:59,496 INFO L93 Difference]: Finished difference Result 5437 states and 8023 transitions. [2020-10-15 03:21:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:21:59,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:21:59,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:59,509 INFO L225 Difference]: With dead ends: 5437 [2020-10-15 03:21:59,509 INFO L226 Difference]: Without dead ends: 4603 [2020-10-15 03:21:59,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:21:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4603 states. [2020-10-15 03:22:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4603 to 3625. [2020-10-15 03:22:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3625 states. [2020-10-15 03:22:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5307 transitions. [2020-10-15 03:22:00,019 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5307 transitions. Word has length 65 [2020-10-15 03:22:00,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:00,019 INFO L479 AbstractCegarLoop]: Abstraction has 3625 states and 5307 transitions. [2020-10-15 03:22:00,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5307 transitions. [2020-10-15 03:22:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:22:00,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:00,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:00,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:22:00,023 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:00,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:00,023 INFO L82 PathProgramCache]: Analyzing trace with hash 601863164, now seen corresponding path program 1 times [2020-10-15 03:22:00,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:00,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519709389] [2020-10-15 03:22:00,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:00,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:00,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:00,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:00,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:00,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:01,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:01,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:01,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:01,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:01,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:02,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:04,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:05,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:05,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:22:05,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:22:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:22:05,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:05,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:22:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:05,403 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:05,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:05,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:05,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:05,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:05,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:22:05,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:05,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:05,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:05,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:05,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519709389] [2020-10-15 03:22:05,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:05,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:05,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242131641] [2020-10-15 03:22:05,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:05,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:05,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:05,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:05,428 INFO L87 Difference]: Start difference. First operand 3625 states and 5307 transitions. Second operand 8 states. [2020-10-15 03:22:05,730 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:22:08,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:08,953 INFO L93 Difference]: Finished difference Result 5462 states and 8048 transitions. [2020-10-15 03:22:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:22:08,953 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:22:08,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:08,960 INFO L225 Difference]: With dead ends: 5462 [2020-10-15 03:22:08,960 INFO L226 Difference]: Without dead ends: 4612 [2020-10-15 03:22:08,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:22:08,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4612 states. [2020-10-15 03:22:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4612 to 3625. [2020-10-15 03:22:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3625 states. [2020-10-15 03:22:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5305 transitions. [2020-10-15 03:22:09,402 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5305 transitions. Word has length 65 [2020-10-15 03:22:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:09,403 INFO L479 AbstractCegarLoop]: Abstraction has 3625 states and 5305 transitions. [2020-10-15 03:22:09,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:09,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5305 transitions. [2020-10-15 03:22:09,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:22:09,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:09,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:09,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:22:09,405 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:09,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:09,405 INFO L82 PathProgramCache]: Analyzing trace with hash -594136727, now seen corresponding path program 1 times [2020-10-15 03:22:09,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:09,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418838559] [2020-10-15 03:22:09,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:09,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:10,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:10,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:10,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:10,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:10,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:11,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:11,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:12,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:14,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:14,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:22:14,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:22:14,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:22:14,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:14,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:22:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:14,723 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:14,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:14,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:14,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:14,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:14,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:14,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:22:14,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:14,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:14,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418838559] [2020-10-15 03:22:14,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:14,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:14,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500501980] [2020-10-15 03:22:14,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:14,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:14,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:14,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:14,750 INFO L87 Difference]: Start difference. First operand 3625 states and 5305 transitions. Second operand 8 states. [2020-10-15 03:22:15,052 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:22:18,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:18,222 INFO L93 Difference]: Finished difference Result 5032 states and 7384 transitions. [2020-10-15 03:22:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:22:18,223 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:22:18,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:18,228 INFO L225 Difference]: With dead ends: 5032 [2020-10-15 03:22:18,228 INFO L226 Difference]: Without dead ends: 5010 [2020-10-15 03:22:18,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:22:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2020-10-15 03:22:18,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 3625. [2020-10-15 03:22:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3625 states. [2020-10-15 03:22:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5302 transitions. [2020-10-15 03:22:18,632 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5302 transitions. Word has length 65 [2020-10-15 03:22:18,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:18,633 INFO L479 AbstractCegarLoop]: Abstraction has 3625 states and 5302 transitions. [2020-10-15 03:22:18,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5302 transitions. [2020-10-15 03:22:18,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:22:18,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:18,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:18,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:22:18,635 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:18,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:18,636 INFO L82 PathProgramCache]: Analyzing trace with hash -281669372, now seen corresponding path program 1 times [2020-10-15 03:22:18,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:18,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148060212] [2020-10-15 03:22:18,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:18,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:18,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:18,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:18,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:19,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:19,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:19,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:20,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:20,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:20,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:20,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:20,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:23,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:23,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:22:23,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:22:23,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:22:23,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:23,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:23,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:22:23,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:23,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:22:23,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:24,091 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:24,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:24,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:24,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:24,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:24,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:24,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:22:24,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:24,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:24,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148060212] [2020-10-15 03:22:24,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:24,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:22:24,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013854281] [2020-10-15 03:22:24,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:22:24,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:24,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:22:24,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:22:24,154 INFO L87 Difference]: Start difference. First operand 3625 states and 5302 transitions. Second operand 9 states. [2020-10-15 03:22:24,570 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:22:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:27,899 INFO L93 Difference]: Finished difference Result 5546 states and 8230 transitions. [2020-10-15 03:22:27,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:22:27,900 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-15 03:22:27,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:27,906 INFO L225 Difference]: With dead ends: 5546 [2020-10-15 03:22:27,906 INFO L226 Difference]: Without dead ends: 5537 [2020-10-15 03:22:27,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:22:27,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5537 states. [2020-10-15 03:22:28,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5537 to 3616. [2020-10-15 03:22:28,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3616 states. [2020-10-15 03:22:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 5288 transitions. [2020-10-15 03:22:28,312 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 5288 transitions. Word has length 66 [2020-10-15 03:22:28,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:28,312 INFO L479 AbstractCegarLoop]: Abstraction has 3616 states and 5288 transitions. [2020-10-15 03:22:28,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:22:28,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5288 transitions. [2020-10-15 03:22:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:22:28,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:28,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:28,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:22:28,314 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:28,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:28,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1723178371, now seen corresponding path program 1 times [2020-10-15 03:22:28,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:28,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678603634] [2020-10-15 03:22:28,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:28,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:28,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:28,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:28,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:33,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:22:33,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:22:33,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:22:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:33,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:22:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:22:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:33,684 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:33,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:33,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:33,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:33,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:33,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:22:33,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:33,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:33,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678603634] [2020-10-15 03:22:33,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:33,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:22:33,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376508122] [2020-10-15 03:22:33,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:22:33,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:33,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:22:33,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:22:33,711 INFO L87 Difference]: Start difference. First operand 3616 states and 5288 transitions. Second operand 9 states. [2020-10-15 03:22:34,046 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 03:22:36,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:36,321 INFO L93 Difference]: Finished difference Result 4886 states and 7229 transitions. [2020-10-15 03:22:36,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:22:36,322 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-15 03:22:36,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:36,326 INFO L225 Difference]: With dead ends: 4886 [2020-10-15 03:22:36,326 INFO L226 Difference]: Without dead ends: 3644 [2020-10-15 03:22:36,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:22:36,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2020-10-15 03:22:36,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 3600. [2020-10-15 03:22:36,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3600 states. [2020-10-15 03:22:36,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5266 transitions. [2020-10-15 03:22:36,727 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5266 transitions. Word has length 66 [2020-10-15 03:22:36,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:36,727 INFO L479 AbstractCegarLoop]: Abstraction has 3600 states and 5266 transitions. [2020-10-15 03:22:36,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:22:36,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5266 transitions. [2020-10-15 03:22:36,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:22:36,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:36,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:36,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 03:22:36,729 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:36,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:36,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1607004439, now seen corresponding path program 1 times [2020-10-15 03:22:36,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:36,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497401171] [2020-10-15 03:22:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:36,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:36,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:36,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:40,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:40,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:22:40,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:22:40,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3703 [2020-10-15 03:22:40,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:40,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:40,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:40,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:40,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 03:22:40,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:40,991 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:40,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:41,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:41,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:41,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:41,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:22:41,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:41,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:41,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:41,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497401171] [2020-10-15 03:22:41,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:41,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:41,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088081850] [2020-10-15 03:22:41,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:41,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:41,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:41,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:41,029 INFO L87 Difference]: Start difference. First operand 3600 states and 5266 transitions. Second operand 8 states. [2020-10-15 03:22:41,361 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-15 03:22:44,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:44,018 INFO L93 Difference]: Finished difference Result 6148 states and 9163 transitions. [2020-10-15 03:22:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:22:44,019 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-15 03:22:44,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:44,025 INFO L225 Difference]: With dead ends: 6148 [2020-10-15 03:22:44,025 INFO L226 Difference]: Without dead ends: 4880 [2020-10-15 03:22:44,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:22:44,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2020-10-15 03:22:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 3574. [2020-10-15 03:22:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3574 states. [2020-10-15 03:22:44,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5233 transitions. [2020-10-15 03:22:44,493 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5233 transitions. Word has length 66 [2020-10-15 03:22:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:44,494 INFO L479 AbstractCegarLoop]: Abstraction has 3574 states and 5233 transitions. [2020-10-15 03:22:44,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5233 transitions. [2020-10-15 03:22:44,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:22:44,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:44,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:44,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 03:22:44,495 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:44,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:44,495 INFO L82 PathProgramCache]: Analyzing trace with hash 162213069, now seen corresponding path program 1 times [2020-10-15 03:22:44,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:44,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208287457] [2020-10-15 03:22:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:44,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:45,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:45,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:45,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:45,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:49,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:49,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:22:49,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:22:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:22:49,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:49,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:22:49,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:49,808 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:49,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:49,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:49,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:49,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:49,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:49,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:22:49,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:49,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:49,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:49,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208287457] [2020-10-15 03:22:49,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:49,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:49,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723521976] [2020-10-15 03:22:49,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:49,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:49,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:49,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:49,834 INFO L87 Difference]: Start difference. First operand 3574 states and 5233 transitions. Second operand 8 states. [2020-10-15 03:22:50,145 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:22:53,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:53,353 INFO L93 Difference]: Finished difference Result 8380 states and 12514 transitions. [2020-10-15 03:22:53,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:22:53,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-15 03:22:53,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:53,361 INFO L225 Difference]: With dead ends: 8380 [2020-10-15 03:22:53,361 INFO L226 Difference]: Without dead ends: 7023 [2020-10-15 03:22:53,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:22:53,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7023 states. [2020-10-15 03:22:53,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7023 to 3574. [2020-10-15 03:22:53,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3574 states. [2020-10-15 03:22:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5230 transitions. [2020-10-15 03:22:53,801 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5230 transitions. Word has length 66 [2020-10-15 03:22:53,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:53,801 INFO L479 AbstractCegarLoop]: Abstraction has 3574 states and 5230 transitions. [2020-10-15 03:22:53,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:53,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5230 transitions. [2020-10-15 03:22:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:22:53,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:53,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:22:53,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 03:22:53,803 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:53,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:53,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1674794966, now seen corresponding path program 1 times [2020-10-15 03:22:53,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:53,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185764598] [2020-10-15 03:22:53,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:53,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:53,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:53,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:54,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:54,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:55,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:55,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:55,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:55,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:55,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:57,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:58,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:58,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:58,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:58,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:58,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:22:58,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-15 03:22:58,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:22:58,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:58,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:58,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:22:58,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:58,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:22:58,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:59,172 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:59,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:59,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:59,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:59,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:22:59,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:59,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:59,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:59,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185764598] [2020-10-15 03:22:59,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:59,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:22:59,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849335795] [2020-10-15 03:22:59,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:22:59,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:59,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:22:59,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:22:59,198 INFO L87 Difference]: Start difference. First operand 3574 states and 5230 transitions. Second operand 9 states. [2020-10-15 03:22:59,496 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-15 03:23:02,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:02,123 INFO L93 Difference]: Finished difference Result 4898 states and 7222 transitions. [2020-10-15 03:23:02,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:23:02,124 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-15 03:23:02,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:02,128 INFO L225 Difference]: With dead ends: 4898 [2020-10-15 03:23:02,128 INFO L226 Difference]: Without dead ends: 3667 [2020-10-15 03:23:02,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:23:02,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3667 states. [2020-10-15 03:23:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3667 to 3573. [2020-10-15 03:23:02,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3573 states. [2020-10-15 03:23:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 5228 transitions. [2020-10-15 03:23:02,610 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 5228 transitions. Word has length 66 [2020-10-15 03:23:02,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:02,610 INFO L479 AbstractCegarLoop]: Abstraction has 3573 states and 5228 transitions. [2020-10-15 03:23:02,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:23:02,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 5228 transitions. [2020-10-15 03:23:02,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:23:02,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:02,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:23:02,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 03:23:02,612 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:02,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:02,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1630763887, now seen corresponding path program 1 times [2020-10-15 03:23:02,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:02,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980608612] [2020-10-15 03:23:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:03,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:03,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:06,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:06,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:23:06,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:23:06,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4009 [2020-10-15 03:23:06,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:06,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:23:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 03:23:06,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:06,965 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:06,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:06,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:06,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:06,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:06,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:23:06,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:06,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:06,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:06,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:06,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:06,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:23:06,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980608612] [2020-10-15 03:23:06,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:06,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:23:06,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620607806] [2020-10-15 03:23:06,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:23:06,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:06,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:23:06,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:23:06,993 INFO L87 Difference]: Start difference. First operand 3573 states and 5228 transitions. Second operand 9 states. [2020-10-15 03:23:07,279 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:23:09,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:09,970 INFO L93 Difference]: Finished difference Result 7746 states and 11632 transitions. [2020-10-15 03:23:09,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:23:09,970 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-15 03:23:09,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:09,981 INFO L225 Difference]: With dead ends: 7746 [2020-10-15 03:23:09,981 INFO L226 Difference]: Without dead ends: 6864 [2020-10-15 03:23:09,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:23:09,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6864 states. [2020-10-15 03:23:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6864 to 3539. [2020-10-15 03:23:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3539 states. [2020-10-15 03:23:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 5181 transitions. [2020-10-15 03:23:10,430 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 5181 transitions. Word has length 66 [2020-10-15 03:23:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:10,431 INFO L479 AbstractCegarLoop]: Abstraction has 3539 states and 5181 transitions. [2020-10-15 03:23:10,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:23:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 5181 transitions. [2020-10-15 03:23:10,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:23:10,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:10,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:23:10,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 03:23:10,433 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:10,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:10,433 INFO L82 PathProgramCache]: Analyzing trace with hash 475635822, now seen corresponding path program 1 times [2020-10-15 03:23:10,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:10,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355074316] [2020-10-15 03:23:10,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:10,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:10,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:10,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:10,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:10,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking...