/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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:21:42,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:21:42,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:21:42,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:21:42,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:21:42,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:21:42,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:21:42,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:21:42,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:21:42,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:21:42,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:21:42,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:21:42,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:21:42,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:21:42,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:21:42,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:21:42,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:21:42,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:21:42,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:21:42,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:21:42,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:21:42,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:21:42,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:21:42,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:21:42,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:21:42,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:21:42,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:21:42,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:21:42,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:21:42,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:21:42,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:21:42,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:21:42,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:21:42,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:21:42,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:21:42,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:21:42,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:21:42,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:21:42,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:21:42,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:21:42,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:21:42,308 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 03:21:42,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:21:42,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:21:42,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:21:42,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:21:42,332 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:21:42,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:21:42,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:21:42,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:21:42,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:21:42,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:21:42,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:21:42,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:21:42,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:21:42,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:21:42,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:21:42,334 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:21:42,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:21:42,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:21:42,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:21:42,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:21:42,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:21:42,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:21:42,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:21:42,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:21:42,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:21:42,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:21:42,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:21:42,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:21:42,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:21:42,337 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 03:21:42,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:21:42,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:21:42,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:21:42,667 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:21:42,668 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:21:42,669 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:21:42,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/965e9f7b6/4ebe525446994fc389d78b9dfd8483b1/FLAG6936be528 [2020-10-15 03:21:43,334 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:21:43,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:21:43,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/965e9f7b6/4ebe525446994fc389d78b9dfd8483b1/FLAG6936be528 [2020-10-15 03:21:43,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/965e9f7b6/4ebe525446994fc389d78b9dfd8483b1 [2020-10-15 03:21:43,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:21:43,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:21:43,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:21:43,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:21:43,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:21:43,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:43" (1/1) ... [2020-10-15 03:21:43,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af41d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:43, skipping insertion in model container [2020-10-15 03:21:43,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:43" (1/1) ... [2020-10-15 03:21:43,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:21:43,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:21:44,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:21:44,442 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:21:44,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:21:44,797 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:21:44,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44 WrapperNode [2020-10-15 03:21:44,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:21:44,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:21:44,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:21:44,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:21:44,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2020-10-15 03:21:44,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2020-10-15 03:21:44,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2020-10-15 03:21:44,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2020-10-15 03:21:44,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2020-10-15 03:21:44,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2020-10-15 03:21:44,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2020-10-15 03:21:44,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:21:44,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:21:44,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:21:44,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:21:44,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (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 03:21:45,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:21:45,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:21:45,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:21:45,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:21:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:21:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:21:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:21:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:21:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:21:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:21:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:21:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:21:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:21:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:21:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:21:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:21:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:21:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:21:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:21:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:21:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:21:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:21:46,871 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:21:46,871 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:21:46,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:46 BoogieIcfgContainer [2020-10-15 03:21:46,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:21:46,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:21:46,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:21:46,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:21:46,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:21:43" (1/3) ... [2020-10-15 03:21:46,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d552e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:46, skipping insertion in model container [2020-10-15 03:21:46,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (2/3) ... [2020-10-15 03:21:46,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d552e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:46, skipping insertion in model container [2020-10-15 03:21:46,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:46" (3/3) ... [2020-10-15 03:21:46,887 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:21:46,897 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:21:46,905 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-15 03:21:46,918 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-15 03:21:46,945 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:21:46,945 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:21:46,945 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:21:46,945 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:21:46,946 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:21:46,946 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:21:46,946 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:21:46,946 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:21:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states. [2020-10-15 03:21:47,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:21:47,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:47,002 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 03:21:47,002 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 03:21:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:47,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1666706590, now seen corresponding path program 1 times [2020-10-15 03:21:47,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:47,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206472859] [2020-10-15 03:21:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:47,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:47,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:47,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:48,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:48,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:48,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:49,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:49,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:50,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:52,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:52,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:21:52,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:21:52,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 03:21:52,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:52,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:52,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:21:52,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:21:52,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 03:21:52,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 03:21:52,850 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:21:52,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:52,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:52,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:52,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:52,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:52,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:21:52,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:52,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:52,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:52,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:52,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:52,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:21:52,898 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 03:21:52,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206472859] [2020-10-15 03:21:52,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:52,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:21:52,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237914706] [2020-10-15 03:21:52,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:21:52,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:52,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:21:52,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:21:52,924 INFO L87 Difference]: Start difference. First operand 542 states. Second operand 6 states. [2020-10-15 03:21:53,251 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-15 03:21:57,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:57,470 INFO L93 Difference]: Finished difference Result 1256 states and 2107 transitions. [2020-10-15 03:21:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:21:57,472 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-15 03:21:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:57,507 INFO L225 Difference]: With dead ends: 1256 [2020-10-15 03:21:57,507 INFO L226 Difference]: Without dead ends: 1156 [2020-10-15 03:21:57,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:21:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-10-15 03:21:57,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 890. [2020-10-15 03:21:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-10-15 03:21:57,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1185 transitions. [2020-10-15 03:21:57,640 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1185 transitions. Word has length 63 [2020-10-15 03:21:57,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:57,640 INFO L479 AbstractCegarLoop]: Abstraction has 890 states and 1185 transitions. [2020-10-15 03:21:57,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:21:57,641 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1185 transitions. [2020-10-15 03:21:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:21:57,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:57,648 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 03:21:57,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:21:57,649 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 03:21:57,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1660141307, now seen corresponding path program 1 times [2020-10-15 03:21:57,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:57,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498640701] [2020-10-15 03:21:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:57,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:57,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:57,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:57,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:58,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:58,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:02,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:02,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:02,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:22:02,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:22:02,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:22:02,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:02,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 03:22:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:22:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:22:02,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-15 03:22:03,131 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:03,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:03,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:03,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 03:22:03,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:03,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:22:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:22:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:03,199 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 03:22:03,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498640701] [2020-10-15 03:22:03,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:03,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 03:22:03,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567649684] [2020-10-15 03:22:03,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 03:22:03,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:03,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 03:22:03,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:22:03,204 INFO L87 Difference]: Start difference. First operand 890 states and 1185 transitions. Second operand 11 states. [2020-10-15 03:22:03,558 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-15 03:22:05,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:05,962 INFO L93 Difference]: Finished difference Result 2041 states and 2860 transitions. [2020-10-15 03:22:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:22:05,962 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-10-15 03:22:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:05,973 INFO L225 Difference]: With dead ends: 2041 [2020-10-15 03:22:05,973 INFO L226 Difference]: Without dead ends: 1520 [2020-10-15 03:22:05,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:22:05,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2020-10-15 03:22:06,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 989. [2020-10-15 03:22:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 989 states. [2020-10-15 03:22:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1379 transitions. [2020-10-15 03:22:06,056 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1379 transitions. Word has length 63 [2020-10-15 03:22:06,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:06,057 INFO L479 AbstractCegarLoop]: Abstraction has 989 states and 1379 transitions. [2020-10-15 03:22:06,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 03:22:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1379 transitions. [2020-10-15 03:22:06,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:22:06,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:06,065 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 03:22:06,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:22:06,066 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 03:22:06,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:06,066 INFO L82 PathProgramCache]: Analyzing trace with hash 478280318, now seen corresponding path program 1 times [2020-10-15 03:22:06,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:06,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186815179] [2020-10-15 03:22:06,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:06,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:06,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:08,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:09,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:11,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:11,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:22:11,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:22:11,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:22:11,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:11,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:22:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:22:11,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:11,496 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:11,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:11,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:11,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:11,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:11,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:11,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:22:11,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:11,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:11,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:22:11,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186815179] [2020-10-15 03:22:11,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:11,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:22:11,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9704082] [2020-10-15 03:22:11,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:22:11,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:11,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:22:11,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:22:11,564 INFO L87 Difference]: Start difference. First operand 989 states and 1379 transitions. Second operand 9 states. [2020-10-15 03:22:11,877 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:22:13,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:13,724 INFO L93 Difference]: Finished difference Result 1447 states and 2072 transitions. [2020-10-15 03:22:13,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:22:13,724 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-15 03:22:13,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:13,730 INFO L225 Difference]: With dead ends: 1447 [2020-10-15 03:22:13,730 INFO L226 Difference]: Without dead ends: 1021 [2020-10-15 03:22:13,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:22:13,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2020-10-15 03:22:13,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 967. [2020-10-15 03:22:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-10-15 03:22:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1344 transitions. [2020-10-15 03:22:13,790 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1344 transitions. Word has length 63 [2020-10-15 03:22:13,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:13,790 INFO L479 AbstractCegarLoop]: Abstraction has 967 states and 1344 transitions. [2020-10-15 03:22:13,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:22:13,791 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1344 transitions. [2020-10-15 03:22:13,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:22:13,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:13,793 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 03:22:13,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:22:13,793 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 03:22:13,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:13,794 INFO L82 PathProgramCache]: Analyzing trace with hash -882405207, now seen corresponding path program 1 times [2020-10-15 03:22:13,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:13,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433301289] [2020-10-15 03:22:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:13,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:13,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:13,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:14,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:14,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:14,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:14,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:15,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:15,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:17,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:17,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:17,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:18,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:18,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:18,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:22:18,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:22:18,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:22:18,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:18,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:18,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:22:18,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:18,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:22:18,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:19,161 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:19,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:19,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:19,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:19,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:19,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:19,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:22:19,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:19,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:19,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:19,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:19,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:19,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:19,196 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 03:22:19,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433301289] [2020-10-15 03:22:19,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:19,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:22:19,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943566712] [2020-10-15 03:22:19,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:22:19,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:19,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:22:19,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:22:19,199 INFO L87 Difference]: Start difference. First operand 967 states and 1344 transitions. Second operand 9 states. [2020-10-15 03:22:19,460 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:22:21,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:21,105 INFO L93 Difference]: Finished difference Result 1005 states and 1379 transitions. [2020-10-15 03:22:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:22:21,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-15 03:22:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:21,111 INFO L225 Difference]: With dead ends: 1005 [2020-10-15 03:22:21,112 INFO L226 Difference]: Without dead ends: 1001 [2020-10-15 03:22:21,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:22:21,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2020-10-15 03:22:21,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 963. [2020-10-15 03:22:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-10-15 03:22:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1340 transitions. [2020-10-15 03:22:21,170 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1340 transitions. Word has length 63 [2020-10-15 03:22:21,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:21,171 INFO L479 AbstractCegarLoop]: Abstraction has 963 states and 1340 transitions. [2020-10-15 03:22:21,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:22:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1340 transitions. [2020-10-15 03:22:21,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:22:21,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:21,173 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 03:22:21,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:22:21,173 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 03:22:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:21,174 INFO L82 PathProgramCache]: Analyzing trace with hash 784214765, now seen corresponding path program 1 times [2020-10-15 03:22:21,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:21,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040280968] [2020-10-15 03:22:21,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:21,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:21,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:21,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:21,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:21,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:22,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:22,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:24,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:24,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:24,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:25,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:25,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:26,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:26,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:22:26,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:22:26,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:22:26,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:26,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:22:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:22:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 03:22:26,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:26,556 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:26,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:26,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:26,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:26,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:26,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:22:26,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:26,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:22:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:22:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:26,617 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 03:22:26,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040280968] [2020-10-15 03:22:26,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:26,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:26,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780053069] [2020-10-15 03:22:26,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:22:26,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:26,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:22:26,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:22:26,620 INFO L87 Difference]: Start difference. First operand 963 states and 1340 transitions. Second operand 9 states. [2020-10-15 03:22:26,901 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 03:22:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:29,079 INFO L93 Difference]: Finished difference Result 3072 states and 4527 transitions. [2020-10-15 03:22:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:22:29,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-15 03:22:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:29,092 INFO L225 Difference]: With dead ends: 3072 [2020-10-15 03:22:29,092 INFO L226 Difference]: Without dead ends: 2482 [2020-10-15 03:22:29,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:22:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2020-10-15 03:22:29,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1358. [2020-10-15 03:22:29,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2020-10-15 03:22:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1948 transitions. [2020-10-15 03:22:29,210 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1948 transitions. Word has length 64 [2020-10-15 03:22:29,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:29,211 INFO L479 AbstractCegarLoop]: Abstraction has 1358 states and 1948 transitions. [2020-10-15 03:22:29,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:22:29,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1948 transitions. [2020-10-15 03:22:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:22:29,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:29,213 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 03:22:29,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:22:29,214 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 03:22:29,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:29,214 INFO L82 PathProgramCache]: Analyzing trace with hash 53953382, now seen corresponding path program 1 times [2020-10-15 03:22:29,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:29,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938581592] [2020-10-15 03:22:29,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:29,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:30,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:31,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:31,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:31,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:32,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:33,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:33,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:34,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:34,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:22:34,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:22:34,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:22:34,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:34,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:34,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:34,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:34,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:22:34,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:34,671 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:34,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:34,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:34,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:34,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:34,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:22:34,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:34,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:34,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:34,703 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 03:22:34,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938581592] [2020-10-15 03:22:34,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:34,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:34,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436299853] [2020-10-15 03:22:34,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:34,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:34,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:34,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:34,706 INFO L87 Difference]: Start difference. First operand 1358 states and 1948 transitions. Second operand 8 states. [2020-10-15 03:22:34,983 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:22:36,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:36,822 INFO L93 Difference]: Finished difference Result 3114 states and 4642 transitions. [2020-10-15 03:22:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:22:36,823 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:22:36,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:36,832 INFO L225 Difference]: With dead ends: 3114 [2020-10-15 03:22:36,833 INFO L226 Difference]: Without dead ends: 2276 [2020-10-15 03:22:36,835 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 03:22:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2020-10-15 03:22:36,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1358. [2020-10-15 03:22:36,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2020-10-15 03:22:36,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1946 transitions. [2020-10-15 03:22:36,944 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1946 transitions. Word has length 64 [2020-10-15 03:22:36,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:36,944 INFO L479 AbstractCegarLoop]: Abstraction has 1358 states and 1946 transitions. [2020-10-15 03:22:36,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:36,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1946 transitions. [2020-10-15 03:22:36,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:22:36,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:36,946 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 03:22:36,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:22:36,947 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 03:22:36,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:36,947 INFO L82 PathProgramCache]: Analyzing trace with hash -344861698, now seen corresponding path program 1 times [2020-10-15 03:22:36,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:36,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875733732] [2020-10-15 03:22:36,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:36,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:37,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:39,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:40,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:41,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:41,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:22:41,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:22:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:22:41,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:41,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 03:22:41,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:42,293 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:42,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:42,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:42,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:42,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:42,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:42,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:22:42,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:42,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:42,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:42,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:42,332 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 03:22:42,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875733732] [2020-10-15 03:22:42,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:42,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:42,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142561808] [2020-10-15 03:22:42,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:42,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:42,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:42,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:42,335 INFO L87 Difference]: Start difference. First operand 1358 states and 1946 transitions. Second operand 8 states. [2020-10-15 03:22:42,594 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:22:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:44,172 INFO L93 Difference]: Finished difference Result 2304 states and 3348 transitions. [2020-10-15 03:22:44,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:22:44,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:22:44,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:44,180 INFO L225 Difference]: With dead ends: 2304 [2020-10-15 03:22:44,180 INFO L226 Difference]: Without dead ends: 1842 [2020-10-15 03:22:44,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:22:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2020-10-15 03:22:44,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1322. [2020-10-15 03:22:44,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1322 states. [2020-10-15 03:22:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1894 transitions. [2020-10-15 03:22:44,285 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1894 transitions. Word has length 64 [2020-10-15 03:22:44,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:44,286 INFO L479 AbstractCegarLoop]: Abstraction has 1322 states and 1894 transitions. [2020-10-15 03:22:44,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1894 transitions. [2020-10-15 03:22:44,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:22:44,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:44,288 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 03:22:44,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:22:44,288 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 03:22:44,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:44,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1598011160, now seen corresponding path program 1 times [2020-10-15 03:22:44,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:44,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214765722] [2020-10-15 03:22:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:44,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:44,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:45,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:45,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:45,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:46,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:46,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:46,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:46,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:46,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:48,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:48,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:48,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:49,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:49,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:49,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:22:49,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:22:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:22:49,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:49,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 03:22:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:49,628 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:49,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:49,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:49,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:49,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:49,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:22:49,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:49,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:49,662 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 03:22:49,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214765722] [2020-10-15 03:22:49,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:49,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:49,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515763442] [2020-10-15 03:22:49,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:49,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:49,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:49,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:49,664 INFO L87 Difference]: Start difference. First operand 1322 states and 1894 transitions. Second operand 8 states. [2020-10-15 03:22:49,952 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:22:51,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:51,754 INFO L93 Difference]: Finished difference Result 3118 states and 4633 transitions. [2020-10-15 03:22:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:22:51,755 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-15 03:22:51,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:51,762 INFO L225 Difference]: With dead ends: 3118 [2020-10-15 03:22:51,763 INFO L226 Difference]: Without dead ends: 2249 [2020-10-15 03:22:51,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:22:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2020-10-15 03:22:51,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 1312. [2020-10-15 03:22:51,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1312 states. [2020-10-15 03:22:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1880 transitions. [2020-10-15 03:22:51,897 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1880 transitions. Word has length 64 [2020-10-15 03:22:51,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:51,897 INFO L479 AbstractCegarLoop]: Abstraction has 1312 states and 1880 transitions. [2020-10-15 03:22:51,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:22:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1880 transitions. [2020-10-15 03:22:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:22:51,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:51,899 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 03:22:51,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:22:51,899 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 03:22:51,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:51,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1567199835, now seen corresponding path program 1 times [2020-10-15 03:22:51,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:51,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324432709] [2020-10-15 03:22:51,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:51,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:51,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:52,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:52,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:52,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:52,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:53,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:53,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:56,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:56,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:22:56,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:22:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:22:56,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:56,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 03:22:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:57,236 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:22:57,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:57,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:57,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:57,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:57,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:22:57,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:57,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:57,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:57,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:57,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:22:57,264 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 03:22:57,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324432709] [2020-10-15 03:22:57,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:57,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:57,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085067038] [2020-10-15 03:22:57,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:57,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:57,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:57,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:57,266 INFO L87 Difference]: Start difference. First operand 1312 states and 1880 transitions. Second operand 8 states. [2020-10-15 03:22:57,551 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:22:59,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:59,787 INFO L93 Difference]: Finished difference Result 5928 states and 8893 transitions. [2020-10-15 03:22:59,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:22:59,788 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:22:59,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:59,804 INFO L225 Difference]: With dead ends: 5928 [2020-10-15 03:22:59,804 INFO L226 Difference]: Without dead ends: 5016 [2020-10-15 03:22:59,807 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 03:22:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5016 states. [2020-10-15 03:23:00,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5016 to 3163. [2020-10-15 03:23:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3163 states. [2020-10-15 03:23:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4682 transitions. [2020-10-15 03:23:00,142 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4682 transitions. Word has length 65 [2020-10-15 03:23:00,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:00,142 INFO L479 AbstractCegarLoop]: Abstraction has 3163 states and 4682 transitions. [2020-10-15 03:23:00,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:23:00,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4682 transitions. [2020-10-15 03:23:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:23:00,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:00,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:23:00,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:23:00,145 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 03:23:00,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1025433219, now seen corresponding path program 1 times [2020-10-15 03:23:00,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:00,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595593951] [2020-10-15 03:23:00,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:00,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:00,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:00,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:00,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:00,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:03,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:03,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:03,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:05,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:05,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:23:05,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:23:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:23:05,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:05,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:23:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:23:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:05,443 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:05,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:05,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:05,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:05,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:05,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:05,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:23:05,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:05,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:05,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:05,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:05,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:05,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:05,466 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 03:23:05,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595593951] [2020-10-15 03:23:05,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:05,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:23:05,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783352942] [2020-10-15 03:23:05,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:23:05,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:05,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:23:05,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:05,468 INFO L87 Difference]: Start difference. First operand 3163 states and 4682 transitions. Second operand 8 states. [2020-10-15 03:23:05,752 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:23:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:07,295 INFO L93 Difference]: Finished difference Result 3280 states and 4794 transitions. [2020-10-15 03:23:07,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:23:07,296 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:23:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:07,305 INFO L225 Difference]: With dead ends: 3280 [2020-10-15 03:23:07,306 INFO L226 Difference]: Without dead ends: 3273 [2020-10-15 03:23:07,307 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 03:23:07,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2020-10-15 03:23:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3163. [2020-10-15 03:23:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3163 states. [2020-10-15 03:23:07,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4681 transitions. [2020-10-15 03:23:07,605 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4681 transitions. Word has length 65 [2020-10-15 03:23:07,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:07,606 INFO L479 AbstractCegarLoop]: Abstraction has 3163 states and 4681 transitions. [2020-10-15 03:23:07,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:23:07,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4681 transitions. [2020-10-15 03:23:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:23:07,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:07,608 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 03:23:07,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:23:07,608 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 03:23:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:07,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1381325977, now seen corresponding path program 1 times [2020-10-15 03:23:07,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:07,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218651609] [2020-10-15 03:23:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:07,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:07,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:07,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:07,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:07,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:08,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:08,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:09,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:09,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:09,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:09,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:09,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:09,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:10,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:10,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:12,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:23:12,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-15 03:23:12,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 03:23:12,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:12,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:12,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:23:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:23:12,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:12,931 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:12,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:12,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:12,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:12,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:12,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:23:12,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:12,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:12,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:12,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:12,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:12,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:12,959 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 03:23:12,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218651609] [2020-10-15 03:23:12,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:12,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:23:12,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119622463] [2020-10-15 03:23:12,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:23:12,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:12,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:23:12,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:12,961 INFO L87 Difference]: Start difference. First operand 3163 states and 4681 transitions. Second operand 8 states. [2020-10-15 03:23:13,244 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:23:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:15,422 INFO L93 Difference]: Finished difference Result 6642 states and 10009 transitions. [2020-10-15 03:23:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:23:15,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:23:15,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:15,441 INFO L225 Difference]: With dead ends: 6642 [2020-10-15 03:23:15,442 INFO L226 Difference]: Without dead ends: 4972 [2020-10-15 03:23:15,447 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 03:23:15,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4972 states. [2020-10-15 03:23:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4972 to 3163. [2020-10-15 03:23:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3163 states. [2020-10-15 03:23:15,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4680 transitions. [2020-10-15 03:23:15,676 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4680 transitions. Word has length 65 [2020-10-15 03:23:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:15,676 INFO L479 AbstractCegarLoop]: Abstraction has 3163 states and 4680 transitions. [2020-10-15 03:23:15,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:23:15,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4680 transitions. [2020-10-15 03:23:15,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:23:15,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:15,678 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 03:23:15,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:23:15,679 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 03:23:15,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:15,679 INFO L82 PathProgramCache]: Analyzing trace with hash 601863164, now seen corresponding path program 1 times [2020-10-15 03:23:15,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:15,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325042274] [2020-10-15 03:23:15,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:15,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:15,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:15,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:16,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:16,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:16,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:16,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:16,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:16,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:16,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:17,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:19,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:20,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:20,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:23:20,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:23:20,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:23:20,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:20,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:20,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:23:20,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:20,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:23:20,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:21,002 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:21,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:21,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:21,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:21,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:21,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:21,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:23:21,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:21,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:21,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:21,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:21,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:21,026 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 03:23:21,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325042274] [2020-10-15 03:23:21,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:21,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:23:21,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276322180] [2020-10-15 03:23:21,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:23:21,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:21,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:23:21,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:21,030 INFO L87 Difference]: Start difference. First operand 3163 states and 4680 transitions. Second operand 8 states. [2020-10-15 03:23:21,321 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:23:23,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:23,807 INFO L93 Difference]: Finished difference Result 6654 states and 10024 transitions. [2020-10-15 03:23:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:23:23,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:23:23,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:23,856 INFO L225 Difference]: With dead ends: 6654 [2020-10-15 03:23:23,856 INFO L226 Difference]: Without dead ends: 4972 [2020-10-15 03:23:23,860 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 03:23:23,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4972 states. [2020-10-15 03:23:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4972 to 3163. [2020-10-15 03:23:24,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3163 states. [2020-10-15 03:23:24,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4678 transitions. [2020-10-15 03:23:24,192 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4678 transitions. Word has length 65 [2020-10-15 03:23:24,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:24,192 INFO L479 AbstractCegarLoop]: Abstraction has 3163 states and 4678 transitions. [2020-10-15 03:23:24,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:23:24,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4678 transitions. [2020-10-15 03:23:24,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:23:24,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:24,194 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 03:23:24,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:23:24,195 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 03:23:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:24,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1581848495, now seen corresponding path program 1 times [2020-10-15 03:23:24,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:24,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904666788] [2020-10-15 03:23:24,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:24,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:24,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:24,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:24,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:25,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:25,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:25,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:25,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:25,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:25,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:26,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:26,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:28,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:23:29,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:23:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:23:29,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:29,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:23:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:23:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:29,506 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:29,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:29,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:29,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:29,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:29,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:29,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:23:29,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:29,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:29,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:29,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:29,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:29,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:23:29,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904666788] [2020-10-15 03:23:29,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:29,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:23:29,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909443798] [2020-10-15 03:23:29,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:23:29,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:29,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:23:29,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:29,532 INFO L87 Difference]: Start difference. First operand 3163 states and 4678 transitions. Second operand 8 states. [2020-10-15 03:23:29,836 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:23:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:32,063 INFO L93 Difference]: Finished difference Result 4986 states and 7422 transitions. [2020-10-15 03:23:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:23:32,064 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:23:32,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:32,074 INFO L225 Difference]: With dead ends: 4986 [2020-10-15 03:23:32,075 INFO L226 Difference]: Without dead ends: 4981 [2020-10-15 03:23:32,077 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 03:23:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4981 states. [2020-10-15 03:23:32,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4981 to 3163. [2020-10-15 03:23:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3163 states. [2020-10-15 03:23:32,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4676 transitions. [2020-10-15 03:23:32,474 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4676 transitions. Word has length 65 [2020-10-15 03:23:32,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:32,474 INFO L479 AbstractCegarLoop]: Abstraction has 3163 states and 4676 transitions. [2020-10-15 03:23:32,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:23:32,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4676 transitions. [2020-10-15 03:23:32,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:23:32,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:32,476 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 03:23:32,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:23:32,477 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 03:23:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:32,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1748559927, now seen corresponding path program 1 times [2020-10-15 03:23:32,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:32,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388950106] [2020-10-15 03:23:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:32,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:32,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:32,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:32,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:33,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:33,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:33,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:33,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:34,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:37,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:37,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:37,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:23:37,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:23:37,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-15 03:23:37,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:37,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:37,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:23:37,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:37,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:23:37,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:37,808 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:37,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:37,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:37,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:37,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:37,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:37,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:23:37,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:37,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:37,843 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 03:23:37,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388950106] [2020-10-15 03:23:37,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:37,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:23:37,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016617143] [2020-10-15 03:23:37,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:23:37,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:37,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:23:37,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:37,845 INFO L87 Difference]: Start difference. First operand 3163 states and 4676 transitions. Second operand 8 states. [2020-10-15 03:23:38,140 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:23:39,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:39,858 INFO L93 Difference]: Finished difference Result 3280 states and 4788 transitions. [2020-10-15 03:23:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 03:23:39,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:23:39,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:39,866 INFO L225 Difference]: With dead ends: 3280 [2020-10-15 03:23:39,866 INFO L226 Difference]: Without dead ends: 3273 [2020-10-15 03:23:39,867 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 03:23:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2020-10-15 03:23:40,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3163. [2020-10-15 03:23:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3163 states. [2020-10-15 03:23:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4675 transitions. [2020-10-15 03:23:40,224 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4675 transitions. Word has length 65 [2020-10-15 03:23:40,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:40,224 INFO L479 AbstractCegarLoop]: Abstraction has 3163 states and 4675 transitions. [2020-10-15 03:23:40,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:23:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4675 transitions. [2020-10-15 03:23:40,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:23:40,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:40,226 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 03:23:40,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:23:40,227 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 03:23:40,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:40,227 INFO L82 PathProgramCache]: Analyzing trace with hash -750559122, now seen corresponding path program 1 times [2020-10-15 03:23:40,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:40,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869262594] [2020-10-15 03:23:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:40,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:40,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:40,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:40,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:40,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:40,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:42,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:45,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:45,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:23:45,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:23:45,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:23:45,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:45,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:45,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:23:45,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:45,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 03:23:45,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:45,513 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:45,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:45,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:45,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:45,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:45,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:45,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:23:45,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:45,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:45,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:45,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:45,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:45,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:45,544 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 03:23:45,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869262594] [2020-10-15 03:23:45,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:45,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:23:45,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031555705] [2020-10-15 03:23:45,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:23:45,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:45,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:23:45,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:23:45,545 INFO L87 Difference]: Start difference. First operand 3163 states and 4675 transitions. Second operand 7 states. [2020-10-15 03:23:45,821 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 03:23:48,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:48,029 INFO L93 Difference]: Finished difference Result 7874 states and 11924 transitions. [2020-10-15 03:23:48,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:23:48,029 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-15 03:23:48,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:48,039 INFO L225 Difference]: With dead ends: 7874 [2020-10-15 03:23:48,039 INFO L226 Difference]: Without dead ends: 5332 [2020-10-15 03:23:48,046 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 03:23:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2020-10-15 03:23:48,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 3163. [2020-10-15 03:23:48,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3163 states. [2020-10-15 03:23:48,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4674 transitions. [2020-10-15 03:23:48,429 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4674 transitions. Word has length 65 [2020-10-15 03:23:48,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:48,429 INFO L479 AbstractCegarLoop]: Abstraction has 3163 states and 4674 transitions. [2020-10-15 03:23:48,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:23:48,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4674 transitions. [2020-10-15 03:23:48,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:23:48,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:48,431 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 03:23:48,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:23:48,432 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 03:23:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:48,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1790827640, now seen corresponding path program 1 times [2020-10-15 03:23:48,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:48,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573582936] [2020-10-15 03:23:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:48,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:48,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:48,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:48,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:50,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:23:50,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:23:50,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1594 [2020-10-15 03:23:50,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:50,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:23:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:23:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:50,500 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:50,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:50,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:50,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:50,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:50,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:23:50,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:50,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:50,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:50,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:50,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:50,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:50,534 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 03:23:50,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573582936] [2020-10-15 03:23:50,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:50,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:23:50,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707674610] [2020-10-15 03:23:50,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:23:50,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:50,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:23:50,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:23:50,536 INFO L87 Difference]: Start difference. First operand 3163 states and 4674 transitions. Second operand 9 states. [2020-10-15 03:23:50,918 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2020-10-15 03:23:53,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:53,261 INFO L93 Difference]: Finished difference Result 4855 states and 7288 transitions. [2020-10-15 03:23:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:23:53,262 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-15 03:23:53,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:53,268 INFO L225 Difference]: With dead ends: 4855 [2020-10-15 03:23:53,268 INFO L226 Difference]: Without dead ends: 4849 [2020-10-15 03:23:53,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:23:53,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2020-10-15 03:23:53,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 3157. [2020-10-15 03:23:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3157 states. [2020-10-15 03:23:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 4653 transitions. [2020-10-15 03:23:53,607 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 4653 transitions. Word has length 66 [2020-10-15 03:23:53,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:53,607 INFO L479 AbstractCegarLoop]: Abstraction has 3157 states and 4653 transitions. [2020-10-15 03:23:53,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:23:53,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 4653 transitions. [2020-10-15 03:23:53,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:23:53,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:53,609 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, 1, 1] [2020-10-15 03:23:53,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:23:53,609 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 03:23:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:53,610 INFO L82 PathProgramCache]: Analyzing trace with hash -145544354, now seen corresponding path program 1 times [2020-10-15 03:23:53,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:53,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897666059] [2020-10-15 03:23:53,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:53,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:53,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:54,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:54,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:54,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:54,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:58,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:58,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:23:58,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:23:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:23:58,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:58,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:23:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:23:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:58,935 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:23:58,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:58,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:58,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:58,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:58,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:58,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:23:58,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:58,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:58,962 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 03:23:58,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897666059] [2020-10-15 03:23:58,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:58,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:23:58,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852843984] [2020-10-15 03:23:58,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:23:58,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:58,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:23:58,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:23:58,964 INFO L87 Difference]: Start difference. First operand 3157 states and 4653 transitions. Second operand 9 states. [2020-10-15 03:23:59,236 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 03:24:01,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:01,348 INFO L93 Difference]: Finished difference Result 4869 states and 7291 transitions. [2020-10-15 03:24:01,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:24:01,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 03:24:01,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:01,353 INFO L225 Difference]: With dead ends: 4869 [2020-10-15 03:24:01,354 INFO L226 Difference]: Without dead ends: 4857 [2020-10-15 03:24:01,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:24:01,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2020-10-15 03:24:01,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 3145. [2020-10-15 03:24:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3145 states. [2020-10-15 03:24:01,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 4635 transitions. [2020-10-15 03:24:01,660 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 4635 transitions. Word has length 67 [2020-10-15 03:24:01,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:01,660 INFO L479 AbstractCegarLoop]: Abstraction has 3145 states and 4635 transitions. [2020-10-15 03:24:01,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:24:01,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 4635 transitions. [2020-10-15 03:24:01,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:24:01,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:01,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:01,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:24:01,662 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 03:24:01,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:01,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1847272574, now seen corresponding path program 1 times [2020-10-15 03:24:01,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:01,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203779822] [2020-10-15 03:24:01,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:01,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:01,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:06,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:06,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:24:06,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:24:06,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:24:06,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:06,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:24:06,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:07,059 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:24:07,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:07,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:07,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:07,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:07,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:24:07,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:07,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:07,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:07,094 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 03:24:07,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203779822] [2020-10-15 03:24:07,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:07,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:07,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973316719] [2020-10-15 03:24:07,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:07,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:07,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:07,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:07,098 INFO L87 Difference]: Start difference. First operand 3145 states and 4635 transitions. Second operand 8 states. [2020-10-15 03:24:07,384 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:24:09,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:09,897 INFO L93 Difference]: Finished difference Result 4962 states and 7373 transitions. [2020-10-15 03:24:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:24:09,899 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-15 03:24:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:09,905 INFO L225 Difference]: With dead ends: 4962 [2020-10-15 03:24:09,905 INFO L226 Difference]: Without dead ends: 4957 [2020-10-15 03:24:09,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:24:09,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2020-10-15 03:24:10,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 3145. [2020-10-15 03:24:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3145 states. [2020-10-15 03:24:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 4633 transitions. [2020-10-15 03:24:10,294 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 4633 transitions. Word has length 67 [2020-10-15 03:24:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:10,295 INFO L479 AbstractCegarLoop]: Abstraction has 3145 states and 4633 transitions. [2020-10-15 03:24:10,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 4633 transitions. [2020-10-15 03:24:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:24:10,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:10,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:10,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:24:10,297 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 03:24:10,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:10,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1203391707, now seen corresponding path program 1 times [2020-10-15 03:24:10,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:10,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412049295] [2020-10-15 03:24:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:10,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:10,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:10,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:11,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:14,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:14,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:14,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:14,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:15,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:15,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:24:15,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:24:15,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:24:15,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:15,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:24:15,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:15,609 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:24:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:15,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:15,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:15,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:15,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 03:24:15,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:15,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:15,635 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 03:24:15,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412049295] [2020-10-15 03:24:15,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:15,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:15,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289486657] [2020-10-15 03:24:15,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:15,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:15,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:15,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:15,637 INFO L87 Difference]: Start difference. First operand 3145 states and 4633 transitions. Second operand 8 states. [2020-10-15 03:24:15,932 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:24:18,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:18,185 INFO L93 Difference]: Finished difference Result 6617 states and 9954 transitions. [2020-10-15 03:24:18,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:24:18,185 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-15 03:24:18,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:18,190 INFO L225 Difference]: With dead ends: 6617 [2020-10-15 03:24:18,190 INFO L226 Difference]: Without dead ends: 4957 [2020-10-15 03:24:18,194 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 03:24:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2020-10-15 03:24:18,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 3145. [2020-10-15 03:24:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3145 states. [2020-10-15 03:24:18,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 4632 transitions. [2020-10-15 03:24:18,575 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 4632 transitions. Word has length 67 [2020-10-15 03:24:18,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:18,576 INFO L479 AbstractCegarLoop]: Abstraction has 3145 states and 4632 transitions. [2020-10-15 03:24:18,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 4632 transitions. [2020-10-15 03:24:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:24:18,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:18,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:18,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:24:18,577 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 03:24:18,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:18,578 INFO L82 PathProgramCache]: Analyzing trace with hash 2022365079, now seen corresponding path program 1 times [2020-10-15 03:24:18,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:18,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907661982] [2020-10-15 03:24:18,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:18,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:21,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:21,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:22,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:22,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:22,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:22,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:22,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:23,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:23,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:23,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:23,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:24:23,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:24:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:24:23,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:23,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:24:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 03:24:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:24,040 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:24:24,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:24,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:24,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:24,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:24,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:24:24,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:24,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:24,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:24,094 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 03:24:24,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907661982] [2020-10-15 03:24:24,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:24,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:24:24,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317400764] [2020-10-15 03:24:24,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:24:24,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:24,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:24:24,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:24:24,098 INFO L87 Difference]: Start difference. First operand 3145 states and 4632 transitions. Second operand 9 states. [2020-10-15 03:24:24,368 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 03:24:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:26,126 INFO L93 Difference]: Finished difference Result 4833 states and 7244 transitions. [2020-10-15 03:24:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:24:26,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 03:24:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:26,129 INFO L225 Difference]: With dead ends: 4833 [2020-10-15 03:24:26,129 INFO L226 Difference]: Without dead ends: 3165 [2020-10-15 03:24:26,131 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 03:24:26,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2020-10-15 03:24:26,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 3117. [2020-10-15 03:24:26,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2020-10-15 03:24:26,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 4591 transitions. [2020-10-15 03:24:26,429 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 4591 transitions. Word has length 67 [2020-10-15 03:24:26,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:26,429 INFO L479 AbstractCegarLoop]: Abstraction has 3117 states and 4591 transitions. [2020-10-15 03:24:26,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:24:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 4591 transitions. [2020-10-15 03:24:26,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:24:26,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:26,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:26,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:24:26,430 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 03:24:26,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:26,431 INFO L82 PathProgramCache]: Analyzing trace with hash -94579521, now seen corresponding path program 1 times [2020-10-15 03:24:26,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:26,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583293674] [2020-10-15 03:24:26,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:26,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:26,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:26,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:27,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:27,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:27,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:27,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:28,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:28,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:31,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:31,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:24:31,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:24:31,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:24:31,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:31,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:31,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:31,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:31,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 03:24:31,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:31,774 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:24:31,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:31,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:31,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:31,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:31,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:24:31,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:31,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:31,803 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 03:24:31,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583293674] [2020-10-15 03:24:31,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:31,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:31,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855431674] [2020-10-15 03:24:31,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:31,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:31,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:31,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:31,805 INFO L87 Difference]: Start difference. First operand 3117 states and 4591 transitions. Second operand 8 states. [2020-10-15 03:24:32,078 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 03:24:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:34,086 INFO L93 Difference]: Finished difference Result 6510 states and 9837 transitions. [2020-10-15 03:24:34,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:24:34,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-15 03:24:34,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:34,090 INFO L225 Difference]: With dead ends: 6510 [2020-10-15 03:24:34,090 INFO L226 Difference]: Without dead ends: 4760 [2020-10-15 03:24:34,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:24:34,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4760 states. [2020-10-15 03:24:34,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4760 to 3025. [2020-10-15 03:24:34,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3025 states. [2020-10-15 03:24:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4476 transitions. [2020-10-15 03:24:34,421 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4476 transitions. Word has length 67 [2020-10-15 03:24:34,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:34,421 INFO L479 AbstractCegarLoop]: Abstraction has 3025 states and 4476 transitions. [2020-10-15 03:24:34,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4476 transitions. [2020-10-15 03:24:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:24:34,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:34,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:34,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 03:24:34,423 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 03:24:34,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:34,423 INFO L82 PathProgramCache]: Analyzing trace with hash -805860749, now seen corresponding path program 1 times [2020-10-15 03:24:34,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:34,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380223673] [2020-10-15 03:24:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:34,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:34,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:34,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:34,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:35,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:35,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:37,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:37,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:37,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:37,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:38,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:38,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:39,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:39,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:24:39,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:24:39,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:24:39,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:39,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:24:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:24:39,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:39,739 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:24:39,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:39,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:39,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:39,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:39,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:39,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:24:39,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:39,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:39,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:39,768 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 03:24:39,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380223673] [2020-10-15 03:24:39,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:39,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:24:39,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706155009] [2020-10-15 03:24:39,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:24:39,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:39,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:24:39,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:24:39,770 INFO L87 Difference]: Start difference. First operand 3025 states and 4476 transitions. Second operand 9 states. [2020-10-15 03:24:40,055 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 03:24:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:43,053 INFO L93 Difference]: Finished difference Result 10406 states and 15859 transitions. [2020-10-15 03:24:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 03:24:43,054 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 03:24:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:43,063 INFO L225 Difference]: With dead ends: 10406 [2020-10-15 03:24:43,063 INFO L226 Difference]: Without dead ends: 8715 [2020-10-15 03:24:43,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-10-15 03:24:43,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8715 states. [2020-10-15 03:24:43,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8715 to 5534. [2020-10-15 03:24:43,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5534 states. [2020-10-15 03:24:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5534 states to 5534 states and 8338 transitions. [2020-10-15 03:24:43,764 INFO L78 Accepts]: Start accepts. Automaton has 5534 states and 8338 transitions. Word has length 67 [2020-10-15 03:24:43,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:43,764 INFO L479 AbstractCegarLoop]: Abstraction has 5534 states and 8338 transitions. [2020-10-15 03:24:43,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:24:43,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5534 states and 8338 transitions. [2020-10-15 03:24:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:24:43,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:43,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:43,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 03:24:43,765 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 03:24:43,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:43,765 INFO L82 PathProgramCache]: Analyzing trace with hash -849891828, now seen corresponding path program 1 times [2020-10-15 03:24:43,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:43,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639971440] [2020-10-15 03:24:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:43,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:43,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:43,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:46,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:47,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:48,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:48,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:24:48,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:24:48,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:24:48,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:48,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:48,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:24:48,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:48,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:24:48,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:49,095 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:24:49,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:49,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:49,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:49,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:49,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:24:49,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:49,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:24:49,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639971440] [2020-10-15 03:24:49,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:49,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:24:49,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412127202] [2020-10-15 03:24:49,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:24:49,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:49,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:24:49,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:24:49,122 INFO L87 Difference]: Start difference. First operand 5534 states and 8338 transitions. Second operand 9 states. [2020-10-15 03:24:49,397 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 03:24:51,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:51,043 INFO L93 Difference]: Finished difference Result 7207 states and 10937 transitions. [2020-10-15 03:24:51,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:24:51,043 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 03:24:51,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:51,048 INFO L225 Difference]: With dead ends: 7207 [2020-10-15 03:24:51,049 INFO L226 Difference]: Without dead ends: 5529 [2020-10-15 03:24:51,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:24:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5529 states. [2020-10-15 03:24:51,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5529 to 5506. [2020-10-15 03:24:51,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5506 states. [2020-10-15 03:24:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 8299 transitions. [2020-10-15 03:24:51,740 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 8299 transitions. Word has length 67 [2020-10-15 03:24:51,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:51,741 INFO L479 AbstractCegarLoop]: Abstraction has 5506 states and 8299 transitions. [2020-10-15 03:24:51,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:24:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 8299 transitions. [2020-10-15 03:24:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 03:24:51,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:51,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:51,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 03:24:51,742 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 03:24:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:51,742 INFO L82 PathProgramCache]: Analyzing trace with hash 747176580, now seen corresponding path program 1 times [2020-10-15 03:24:51,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:51,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598011895] [2020-10-15 03:24:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:51,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:53,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:53,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:53,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:53,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:54,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:55,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:55,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:56,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:56,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-15 03:24:56,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 03:24:56,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:24:56,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:56,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:24:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:57,033 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:24:57,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:57,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:57,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:57,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:57,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:57,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:24:57,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:57,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:57,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:57,058 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 03:24:57,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598011895] [2020-10-15 03:24:57,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:57,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:57,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689351412] [2020-10-15 03:24:57,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:57,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:57,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:57,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:57,059 INFO L87 Difference]: Start difference. First operand 5506 states and 8299 transitions. Second operand 8 states. [2020-10-15 03:24:57,341 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 03:24:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:59,395 INFO L93 Difference]: Finished difference Result 5656 states and 8447 transitions. [2020-10-15 03:24:59,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:24:59,395 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-15 03:24:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:59,401 INFO L225 Difference]: With dead ends: 5656 [2020-10-15 03:24:59,401 INFO L226 Difference]: Without dead ends: 5643 [2020-10-15 03:24:59,402 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 03:24:59,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2020-10-15 03:25:00,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 5506. [2020-10-15 03:25:00,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5506 states. [2020-10-15 03:25:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 8298 transitions. [2020-10-15 03:25:00,135 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 8298 transitions. Word has length 68 [2020-10-15 03:25:00,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:00,135 INFO L479 AbstractCegarLoop]: Abstraction has 5506 states and 8298 transitions. [2020-10-15 03:25:00,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:25:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 8298 transitions. [2020-10-15 03:25:00,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 03:25:00,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:00,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:00,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 03:25:00,137 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 03:25:00,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:00,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1683847519, now seen corresponding path program 1 times [2020-10-15 03:25:00,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:00,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746294733] [2020-10-15 03:25:00,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:00,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:01,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:01,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:01,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:04,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:04,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-15 03:25:04,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:25:04,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4168 [2020-10-15 03:25:04,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:04,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:25:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 03:25:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:04,716 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:25:04,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:04,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:04,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:04,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:04,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:25:04,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:04,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:04,746 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 03:25:04,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746294733] [2020-10-15 03:25:04,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:04,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:25:04,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144187390] [2020-10-15 03:25:04,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:25:04,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:04,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:25:04,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:25:04,747 INFO L87 Difference]: Start difference. First operand 5506 states and 8298 transitions. Second operand 9 states. [2020-10-15 03:25:05,109 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-15 03:25:08,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:08,431 INFO L93 Difference]: Finished difference Result 9449 states and 14367 transitions. [2020-10-15 03:25:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:25:08,432 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-10-15 03:25:08,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:08,441 INFO L225 Difference]: With dead ends: 9449 [2020-10-15 03:25:08,442 INFO L226 Difference]: Without dead ends: 9434 [2020-10-15 03:25:08,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:25:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9434 states. [2020-10-15 03:25:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9434 to 5504. [2020-10-15 03:25:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5504 states. [2020-10-15 03:25:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 8294 transitions. [2020-10-15 03:25:09,244 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 8294 transitions. Word has length 69 [2020-10-15 03:25:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:09,244 INFO L479 AbstractCegarLoop]: Abstraction has 5504 states and 8294 transitions. [2020-10-15 03:25:09,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:25:09,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 8294 transitions. [2020-10-15 03:25:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-15 03:25:09,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:09,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:09,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 03:25:09,246 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 03:25:09,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:09,247 INFO L82 PathProgramCache]: Analyzing trace with hash 736593065, now seen corresponding path program 1 times [2020-10-15 03:25:09,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:09,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690931685] [2020-10-15 03:25:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:09,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:09,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:09,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:09,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:10,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:11,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:11,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 03:25:11,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:25:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1945 [2020-10-15 03:25:11,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:11,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 03:25:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:25:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 03:25:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:11,547 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:25:11,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:11,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:11,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:11,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:11,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:11,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:25:11,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:11,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:11,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:25:11,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:11,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:25:11,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:11,587 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 03:25:11,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690931685] [2020-10-15 03:25:11,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:11,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 03:25:11,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668905032] [2020-10-15 03:25:11,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 03:25:11,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:11,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 03:25:11,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:25:11,588 INFO L87 Difference]: Start difference. First operand 5504 states and 8294 transitions. Second operand 11 states. [2020-10-15 03:25:12,180 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 215 [2020-10-15 03:25:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:14,649 INFO L93 Difference]: Finished difference Result 6280 states and 9372 transitions. [2020-10-15 03:25:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 03:25:14,649 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-15 03:25:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:14,654 INFO L225 Difference]: With dead ends: 6280 [2020-10-15 03:25:14,654 INFO L226 Difference]: Without dead ends: 6272 [2020-10-15 03:25:14,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-10-15 03:25:14,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6272 states. [2020-10-15 03:25:15,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6272 to 5513. [2020-10-15 03:25:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5513 states. [2020-10-15 03:25:15,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5513 states to 5513 states and 8304 transitions. [2020-10-15 03:25:15,438 INFO L78 Accepts]: Start accepts. Automaton has 5513 states and 8304 transitions. Word has length 70 [2020-10-15 03:25:15,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:15,438 INFO L479 AbstractCegarLoop]: Abstraction has 5513 states and 8304 transitions. [2020-10-15 03:25:15,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 03:25:15,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5513 states and 8304 transitions. [2020-10-15 03:25:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 03:25:15,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:15,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:15,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-15 03:25:15,440 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:15,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:15,440 INFO L82 PathProgramCache]: Analyzing trace with hash -137731287, now seen corresponding path program 1 times [2020-10-15 03:25:15,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:15,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053810766] [2020-10-15 03:25:15,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:15,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:15,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:15,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:15,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:17,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:17,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 03:25:17,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:25:17,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2148 [2020-10-15 03:25:17,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:17,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:17,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 03:25:17,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:25:17,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 03:25:17,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:17,967 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:25:17,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:17,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:17,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:17,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:17,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:17,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:25:17,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:17,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:17,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:25:17,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:17,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:25:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:25:18,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053810766] [2020-10-15 03:25:18,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:18,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 03:25:18,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894434398] [2020-10-15 03:25:18,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 03:25:18,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 03:25:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:25:18,010 INFO L87 Difference]: Start difference. First operand 5513 states and 8304 transitions. Second operand 13 states. [2020-10-15 03:25:18,643 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 216 [2020-10-15 03:25:21,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:21,047 INFO L93 Difference]: Finished difference Result 5555 states and 8343 transitions. [2020-10-15 03:25:21,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 03:25:21,048 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-10-15 03:25:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:21,053 INFO L225 Difference]: With dead ends: 5555 [2020-10-15 03:25:21,054 INFO L226 Difference]: Without dead ends: 5532 [2020-10-15 03:25:21,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-10-15 03:25:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2020-10-15 03:25:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 5504. [2020-10-15 03:25:21,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5504 states. [2020-10-15 03:25:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 8293 transitions. [2020-10-15 03:25:21,834 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 8293 transitions. Word has length 71 [2020-10-15 03:25:21,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:21,834 INFO L479 AbstractCegarLoop]: Abstraction has 5504 states and 8293 transitions. [2020-10-15 03:25:21,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 03:25:21,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 8293 transitions. [2020-10-15 03:25:21,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 03:25:21,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:21,836 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:21,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-15 03:25:21,836 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:21,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:21,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1996695652, now seen corresponding path program 1 times [2020-10-15 03:25:21,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:21,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742787864] [2020-10-15 03:25:21,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:21,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:21,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:22,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:22,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:23,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:23,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-15 03:25:23,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:25:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1198 [2020-10-15 03:25:23,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:23,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:25:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:25:23,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:23,352 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:25:23,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:23,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:23,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:23,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:23,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:25:23,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:23,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:23,377 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 03:25:23,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742787864] [2020-10-15 03:25:23,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:23,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:25:23,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254669518] [2020-10-15 03:25:23,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:25:23,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:23,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:25:23,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:25:23,378 INFO L87 Difference]: Start difference. First operand 5504 states and 8293 transitions. Second operand 9 states. [2020-10-15 03:25:23,638 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 03:25:26,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:26,661 INFO L93 Difference]: Finished difference Result 8812 states and 13394 transitions. [2020-10-15 03:25:26,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:25:26,661 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-15 03:25:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:26,670 INFO L225 Difference]: With dead ends: 8812 [2020-10-15 03:25:26,670 INFO L226 Difference]: Without dead ends: 8794 [2020-10-15 03:25:26,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:26,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8794 states. [2020-10-15 03:25:27,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8794 to 5486. [2020-10-15 03:25:27,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5486 states. [2020-10-15 03:25:27,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 8272 transitions. [2020-10-15 03:25:27,494 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 8272 transitions. Word has length 72 [2020-10-15 03:25:27,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:27,494 INFO L479 AbstractCegarLoop]: Abstraction has 5486 states and 8272 transitions. [2020-10-15 03:25:27,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:25:27,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 8272 transitions. [2020-10-15 03:25:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 03:25:27,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:27,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:27,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-15 03:25:27,499 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:27,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:27,500 INFO L82 PathProgramCache]: Analyzing trace with hash -750708309, now seen corresponding path program 1 times [2020-10-15 03:25:27,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:27,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366915998] [2020-10-15 03:25:27,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:27,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:27,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:27,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:27,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:27,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:28,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:28,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:28,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:29,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:31,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:31,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:32,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-15 03:25:32,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:25:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:25:32,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:32,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:25:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:25:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 03:25:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:32,766 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 03:25:32,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:32,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:32,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:32,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:32,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:25:32,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:32,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:32,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:32,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:32,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:32,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:32,791 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 03:25:32,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366915998] [2020-10-15 03:25:32,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:32,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:25:32,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940632537] [2020-10-15 03:25:32,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:25:32,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:32,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:25:32,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:25:32,793 INFO L87 Difference]: Start difference. First operand 5486 states and 8272 transitions. Second operand 6 states. [2020-10-15 03:25:33,073 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-15 03:25:35,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:35,527 INFO L93 Difference]: Finished difference Result 9148 states and 13969 transitions. [2020-10-15 03:25:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:25:35,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-10-15 03:25:35,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:35,533 INFO L225 Difference]: With dead ends: 9148 [2020-10-15 03:25:35,533 INFO L226 Difference]: Without dead ends: 5498 [2020-10-15 03:25:35,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:25:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2020-10-15 03:25:36,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 4266. [2020-10-15 03:25:36,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4266 states. [2020-10-15 03:25:36,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 6336 transitions. [2020-10-15 03:25:36,216 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 6336 transitions. Word has length 89 [2020-10-15 03:25:36,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:36,217 INFO L479 AbstractCegarLoop]: Abstraction has 4266 states and 6336 transitions. [2020-10-15 03:25:36,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:25:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 6336 transitions. [2020-10-15 03:25:36,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 03:25:36,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:36,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:36,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 03:25:36,221 INFO L427 AbstractCegarLoop]: === Iteration 30 === [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 03:25:36,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:36,221 INFO L82 PathProgramCache]: Analyzing trace with hash -637321652, now seen corresponding path program 1 times [2020-10-15 03:25:36,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:36,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832119519] [2020-10-15 03:25:36,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:36,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:37,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:37,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking...