/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.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:23:09,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:23:09,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:23:09,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:23:09,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:23:09,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:23:09,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:23:09,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:23:09,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:23:09,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:23:09,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:23:09,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:23:09,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:23:09,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:23:09,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:23:09,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:23:09,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:23:09,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:23:09,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:23:09,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:23:09,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:23:09,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:23:09,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:23:09,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:23:09,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:23:09,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:23:09,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:23:09,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:23:09,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:23:09,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:23:09,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:23:09,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:23:09,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:23:09,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:23:09,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:23:09,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:23:09,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:23:09,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:23:09,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:23:09,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:23:09,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:23:09,309 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 03:23:09,331 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:23:09,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:23:09,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:23:09,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:23:09,333 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:23:09,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:23:09,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:23:09,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:23:09,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:23:09,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:23:09,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:23:09,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:23:09,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:23:09,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:23:09,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:23:09,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:23:09,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:23:09,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:23:09,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:23:09,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:23:09,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:23:09,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:23:09,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:23:09,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:23:09,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:23:09,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:23:09,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:23:09,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:23:09,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:23:09,337 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 03:23:09,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:23:09,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:23:09,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:23:09,639 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:23:09,640 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:23:09,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-15 03:23:09,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05b9a8062/ef8d1e55567e4009ac004d0ddb7f9003/FLAG38108372c [2020-10-15 03:23:10,441 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:23:10,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-15 03:23:10,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05b9a8062/ef8d1e55567e4009ac004d0ddb7f9003/FLAG38108372c [2020-10-15 03:23:10,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05b9a8062/ef8d1e55567e4009ac004d0ddb7f9003 [2020-10-15 03:23:10,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:23:10,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:23:10,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:23:10,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:23:10,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:23:10,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:10" (1/1) ... [2020-10-15 03:23:10,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0aa04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:10, skipping insertion in model container [2020-10-15 03:23:10,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:10" (1/1) ... [2020-10-15 03:23:10,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:23:10,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:23:11,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:23:11,933 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:23:12,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:23:12,453 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:23:12,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12 WrapperNode [2020-10-15 03:23:12,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:23:12,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:23:12,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:23:12,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:23:12,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (1/1) ... [2020-10-15 03:23:12,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (1/1) ... [2020-10-15 03:23:12,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (1/1) ... [2020-10-15 03:23:12,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (1/1) ... [2020-10-15 03:23:12,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (1/1) ... [2020-10-15 03:23:12,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (1/1) ... [2020-10-15 03:23:12,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (1/1) ... [2020-10-15 03:23:12,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:23:12,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:23:12,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:23:12,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:23:12,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (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 03:23:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:23:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:23:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:23:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:23:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:23:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:23:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:23:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:23:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:23:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:23:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:23:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:23:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:23:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:23:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:23:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:23:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:23:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:23:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:23:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:23:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:23:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:23:16,188 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:23:16,189 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:23:16,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:16 BoogieIcfgContainer [2020-10-15 03:23:16,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:23:16,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:23:16,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:23:16,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:23:16,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:23:10" (1/3) ... [2020-10-15 03:23:16,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fe4d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:16, skipping insertion in model container [2020-10-15 03:23:16,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:12" (2/3) ... [2020-10-15 03:23:16,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fe4d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:16, skipping insertion in model container [2020-10-15 03:23:16,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:16" (3/3) ... [2020-10-15 03:23:16,209 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-15 03:23:16,220 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:23:16,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-15 03:23:16,243 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-15 03:23:16,274 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:23:16,274 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:23:16,274 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:23:16,274 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:23:16,275 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:23:16,275 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:23:16,275 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:23:16,275 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:23:16,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-10-15 03:23:16,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:23:16,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:16,345 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] [2020-10-15 03:23:16,346 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:16,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:16,358 INFO L82 PathProgramCache]: Analyzing trace with hash 552165333, now seen corresponding path program 1 times [2020-10-15 03:23:16,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:16,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184123317] [2020-10-15 03:23:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:17,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:17,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:18,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:19,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:19,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:20,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:21,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:21,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:21,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:23:21,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:23:21,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-15 03:23:21,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:21,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:21,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:23:21,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:23:21,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:23:21,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:23:23,735 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:23:23,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:23,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:23,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:23,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:23,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 03:23:23,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:23,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:23:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:23:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:23,915 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 03:23:23,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184123317] [2020-10-15 03:23:23,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:23,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:23:23,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673700960] [2020-10-15 03:23:23,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:23:23,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:23,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:23:23,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:23:23,943 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 6 states. [2020-10-15 03:23:25,451 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-15 03:23:36,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:36,076 INFO L93 Difference]: Finished difference Result 1636 states and 2788 transitions. [2020-10-15 03:23:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:23:36,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-15 03:23:36,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:36,104 INFO L225 Difference]: With dead ends: 1636 [2020-10-15 03:23:36,104 INFO L226 Difference]: Without dead ends: 1066 [2020-10-15 03:23:36,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:23:36,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-15 03:23:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-15 03:23:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-15 03:23:36,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1346 transitions. [2020-10-15 03:23:36,231 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1346 transitions. Word has length 77 [2020-10-15 03:23:36,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:36,232 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 1346 transitions. [2020-10-15 03:23:36,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:23:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1346 transitions. [2020-10-15 03:23:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:23:36,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:36,238 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] [2020-10-15 03:23:36,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:23:36,239 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:36,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:36,240 INFO L82 PathProgramCache]: Analyzing trace with hash 2047106506, now seen corresponding path program 1 times [2020-10-15 03:23:36,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:36,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892687729] [2020-10-15 03:23:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:36,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:36,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:36,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:36,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:37,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:41,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:41,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:23:41,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:23:41,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-15 03:23:41,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:41,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:23:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:23:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 03:23:41,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:43,006 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:23:43,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:43,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:43,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:43,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:43,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:43,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-15 03:23:43,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:43,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:23:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:23:43,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:43,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:23:43,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892687729] [2020-10-15 03:23:43,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:43,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:23:43,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225836997] [2020-10-15 03:23:43,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:23:43,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:43,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:23:43,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:23:43,152 INFO L87 Difference]: Start difference. First operand 1066 states and 1346 transitions. Second operand 6 states. [2020-10-15 03:23:44,596 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-15 03:23:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:49,708 INFO L93 Difference]: Finished difference Result 1405 states and 1762 transitions. [2020-10-15 03:23:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:23:49,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-15 03:23:49,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:49,715 INFO L225 Difference]: With dead ends: 1405 [2020-10-15 03:23:49,715 INFO L226 Difference]: Without dead ends: 891 [2020-10-15 03:23:49,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-10-15 03:23:49,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 825. [2020-10-15 03:23:49,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-10-15 03:23:49,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1058 transitions. [2020-10-15 03:23:49,762 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1058 transitions. Word has length 77 [2020-10-15 03:23:49,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:49,762 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 1058 transitions. [2020-10-15 03:23:49,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:23:49,762 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1058 transitions. [2020-10-15 03:23:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:23:49,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:49,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:23:49,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:23:49,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:49,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:49,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1219828783, now seen corresponding path program 1 times [2020-10-15 03:23:49,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:49,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552444220] [2020-10-15 03:23:49,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:49,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:51,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:51,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:53,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:54,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:54,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:23:54,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:23:54,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:23:54,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:54,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:54,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:23:54,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:23:54,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:23:54,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:56,291 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:23:56,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:56,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:56,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:56,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:56,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:56,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 03:23:56,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:56,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:56,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:56,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:56,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:56,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:56,368 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 03:23:56,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552444220] [2020-10-15 03:23:56,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:56,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:23:56,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863874487] [2020-10-15 03:23:56,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:23:56,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:56,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:23:56,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:23:56,371 INFO L87 Difference]: Start difference. First operand 825 states and 1058 transitions. Second operand 6 states. [2020-10-15 03:23:57,732 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 560 [2020-10-15 03:24:05,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:05,146 INFO L93 Difference]: Finished difference Result 2262 states and 3047 transitions. [2020-10-15 03:24:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:24:05,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-15 03:24:05,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:05,158 INFO L225 Difference]: With dead ends: 2262 [2020-10-15 03:24:05,159 INFO L226 Difference]: Without dead ends: 2109 [2020-10-15 03:24:05,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:24:05,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2020-10-15 03:24:05,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 1683. [2020-10-15 03:24:05,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1683 states. [2020-10-15 03:24:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2288 transitions. [2020-10-15 03:24:05,247 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2288 transitions. Word has length 77 [2020-10-15 03:24:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:05,248 INFO L479 AbstractCegarLoop]: Abstraction has 1683 states and 2288 transitions. [2020-10-15 03:24:05,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:24:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2288 transitions. [2020-10-15 03:24:05,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:24:05,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:05,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:05,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:24:05,253 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:05,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:05,253 INFO L82 PathProgramCache]: Analyzing trace with hash 255813070, now seen corresponding path program 1 times [2020-10-15 03:24:05,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:05,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18032665] [2020-10-15 03:24:05,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:05,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:05,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:05,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:06,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:06,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:07,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:08,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:08,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:08,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:10,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:10,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:24:10,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:24:10,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:24:10,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:10,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:24:10,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:11,805 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:24:11,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:11,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:11,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:11,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:11,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:11,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 03:24:11,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:11,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:11,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:11,883 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 03:24:11,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18032665] [2020-10-15 03:24:11,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:11,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:11,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774724392] [2020-10-15 03:24:11,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:11,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:11,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:11,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:11,886 INFO L87 Difference]: Start difference. First operand 1683 states and 2288 transitions. Second operand 8 states. [2020-10-15 03:24:13,310 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 566 [2020-10-15 03:24:19,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:19,182 INFO L93 Difference]: Finished difference Result 4011 states and 5693 transitions. [2020-10-15 03:24:19,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:24:19,183 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:24:19,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:19,201 INFO L225 Difference]: With dead ends: 4011 [2020-10-15 03:24:19,201 INFO L226 Difference]: Without dead ends: 3463 [2020-10-15 03:24:19,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:24:19,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2020-10-15 03:24:19,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 1672. [2020-10-15 03:24:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2020-10-15 03:24:19,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2273 transitions. [2020-10-15 03:24:19,330 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2273 transitions. Word has length 79 [2020-10-15 03:24:19,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:19,330 INFO L479 AbstractCegarLoop]: Abstraction has 1672 states and 2273 transitions. [2020-10-15 03:24:19,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:19,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2273 transitions. [2020-10-15 03:24:19,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:24:19,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:19,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:19,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:24:19,335 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:19,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:19,335 INFO L82 PathProgramCache]: Analyzing trace with hash 23953102, now seen corresponding path program 1 times [2020-10-15 03:24:19,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:19,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942486633] [2020-10-15 03:24:19,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:20,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:21,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:23,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:24,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:24,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:24,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:24,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:24:24,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:24:24,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:24:24,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:24,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:24,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:24:24,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 03:24:24,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:24:24,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:26,216 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:24:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:26,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:26,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:26,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:26,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:26,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 03:24:26,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:26,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:26,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:26,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:26,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:26,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:26,442 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 03:24:26,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942486633] [2020-10-15 03:24:26,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:26,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:24:26,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693061757] [2020-10-15 03:24:26,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:24:26,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:26,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:24:26,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:24:26,445 INFO L87 Difference]: Start difference. First operand 1672 states and 2273 transitions. Second operand 6 states. [2020-10-15 03:24:27,961 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 560 [2020-10-15 03:24:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:34,115 INFO L93 Difference]: Finished difference Result 5617 states and 8042 transitions. [2020-10-15 03:24:34,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:24:34,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-15 03:24:34,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:34,137 INFO L225 Difference]: With dead ends: 5617 [2020-10-15 03:24:34,138 INFO L226 Difference]: Without dead ends: 5094 [2020-10-15 03:24:34,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:24:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5094 states. [2020-10-15 03:24:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 3879. [2020-10-15 03:24:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3879 states. [2020-10-15 03:24:34,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 5516 transitions. [2020-10-15 03:24:34,499 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 5516 transitions. Word has length 79 [2020-10-15 03:24:34,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:34,500 INFO L479 AbstractCegarLoop]: Abstraction has 3879 states and 5516 transitions. [2020-10-15 03:24:34,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:24:34,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 5516 transitions. [2020-10-15 03:24:34,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:24:34,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:34,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:34,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:24:34,507 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:34,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:34,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1035519555, now seen corresponding path program 1 times [2020-10-15 03:24:34,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:34,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584484259] [2020-10-15 03:24:34,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:34,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:34,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:34,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:34,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:35,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:35,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:37,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:39,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:39,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:24:39,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:24:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:24:39,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:39,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:24:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:24:39,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:40,991 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:24:40,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:41,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:41,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:41,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:41,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:41,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:24:41,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:41,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:41,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:41,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:41,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:41,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:41,063 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 03:24:41,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584484259] [2020-10-15 03:24:41,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:41,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:24:41,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063199578] [2020-10-15 03:24:41,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:24:41,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:41,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:24:41,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:24:41,066 INFO L87 Difference]: Start difference. First operand 3879 states and 5516 transitions. Second operand 7 states. [2020-10-15 03:24:42,458 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 569 [2020-10-15 03:24:48,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:48,156 INFO L93 Difference]: Finished difference Result 7776 states and 11245 transitions. [2020-10-15 03:24:48,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:24:48,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-15 03:24:48,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:48,186 INFO L225 Difference]: With dead ends: 7776 [2020-10-15 03:24:48,186 INFO L226 Difference]: Without dead ends: 7253 [2020-10-15 03:24:48,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:24:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7253 states. [2020-10-15 03:24:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7253 to 3869. [2020-10-15 03:24:48,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3869 states. [2020-10-15 03:24:48,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3869 states to 3869 states and 5505 transitions. [2020-10-15 03:24:48,520 INFO L78 Accepts]: Start accepts. Automaton has 3869 states and 5505 transitions. Word has length 79 [2020-10-15 03:24:48,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:48,520 INFO L479 AbstractCegarLoop]: Abstraction has 3869 states and 5505 transitions. [2020-10-15 03:24:48,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:24:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 3869 states and 5505 transitions. [2020-10-15 03:24:48,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:24:48,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:48,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:24:48,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:24:48,525 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:48,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:48,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1272103748, now seen corresponding path program 1 times [2020-10-15 03:24:48,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:48,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381391673] [2020-10-15 03:24:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:48,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:48,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:48,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:48,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:49,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:50,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:24:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:24:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:24:53,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:53,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:24:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:24:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:54,992 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:24:54,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:55,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:55,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:55,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:55,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:55,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:24:55,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:55,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:55,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:55,051 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 03:24:55,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381391673] [2020-10-15 03:24:55,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:55,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:24:55,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044012017] [2020-10-15 03:24:55,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:24:55,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:55,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:24:55,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:24:55,054 INFO L87 Difference]: Start difference. First operand 3869 states and 5505 transitions. Second operand 7 states. [2020-10-15 03:24:56,440 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 569 [2020-10-15 03:25:01,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:01,872 INFO L93 Difference]: Finished difference Result 7792 states and 11247 transitions. [2020-10-15 03:25:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:25:01,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-15 03:25:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:01,906 INFO L225 Difference]: With dead ends: 7792 [2020-10-15 03:25:01,907 INFO L226 Difference]: Without dead ends: 7233 [2020-10-15 03:25:01,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:25:01,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7233 states. [2020-10-15 03:25:02,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7233 to 3821. [2020-10-15 03:25:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3821 states. [2020-10-15 03:25:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3821 states to 3821 states and 5443 transitions. [2020-10-15 03:25:02,195 INFO L78 Accepts]: Start accepts. Automaton has 3821 states and 5443 transitions. Word has length 79 [2020-10-15 03:25:02,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:02,195 INFO L479 AbstractCegarLoop]: Abstraction has 3821 states and 5443 transitions. [2020-10-15 03:25:02,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:25:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3821 states and 5443 transitions. [2020-10-15 03:25:02,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:25:02,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:02,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:02,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:25:02,201 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:02,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:02,201 INFO L82 PathProgramCache]: Analyzing trace with hash -693158684, now seen corresponding path program 1 times [2020-10-15 03:25:02,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:02,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404128329] [2020-10-15 03:25:02,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:02,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:02,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:02,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:03,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:03,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:03,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:03,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:04,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:07,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:25:07,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:25:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:25:07,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:07,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:25:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:25:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:25:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:08,580 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:25:08,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:08,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:08,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:08,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 03:25:08,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:08,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:08,644 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 03:25:08,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404128329] [2020-10-15 03:25:08,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:08,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:25:08,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859725134] [2020-10-15 03:25:08,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:25:08,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:08,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:25:08,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:25:08,646 INFO L87 Difference]: Start difference. First operand 3821 states and 5443 transitions. Second operand 6 states. [2020-10-15 03:25:10,048 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 560 [2020-10-15 03:25:16,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:16,670 INFO L93 Difference]: Finished difference Result 5004 states and 7106 transitions. [2020-10-15 03:25:16,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:25:16,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-15 03:25:16,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:16,682 INFO L225 Difference]: With dead ends: 5004 [2020-10-15 03:25:16,683 INFO L226 Difference]: Without dead ends: 4459 [2020-10-15 03:25:16,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:25:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2020-10-15 03:25:16,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 3783. [2020-10-15 03:25:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3783 states. [2020-10-15 03:25:16,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 5389 transitions. [2020-10-15 03:25:16,930 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 5389 transitions. Word has length 79 [2020-10-15 03:25:16,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:16,931 INFO L479 AbstractCegarLoop]: Abstraction has 3783 states and 5389 transitions. [2020-10-15 03:25:16,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:25:16,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 5389 transitions. [2020-10-15 03:25:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:25:16,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:16,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:16,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:25:16,936 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:16,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:16,936 INFO L82 PathProgramCache]: Analyzing trace with hash 812125937, now seen corresponding path program 1 times [2020-10-15 03:25:16,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:16,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327766986] [2020-10-15 03:25:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:17,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:17,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:17,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:17,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:17,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:19,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:20,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:20,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:20,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:21,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:21,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:21,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:21,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:25:21,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:25:21,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:25:21,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:21,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:25:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 03:25:21,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:23,394 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:25:23,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:23,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:23,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:23,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:23,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:23,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:25:23,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:23,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:23,448 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 03:25:23,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327766986] [2020-10-15 03:25:23,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:23,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:25:23,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221363773] [2020-10-15 03:25:23,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:25:23,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:23,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:25:23,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:25:23,450 INFO L87 Difference]: Start difference. First operand 3783 states and 5389 transitions. Second operand 9 states. [2020-10-15 03:25:24,845 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 566 [2020-10-15 03:25:30,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:30,406 INFO L93 Difference]: Finished difference Result 8927 states and 13173 transitions. [2020-10-15 03:25:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:25:30,406 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-15 03:25:30,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:30,423 INFO L225 Difference]: With dead ends: 8927 [2020-10-15 03:25:30,423 INFO L226 Difference]: Without dead ends: 6876 [2020-10-15 03:25:30,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:30,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6876 states. [2020-10-15 03:25:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6876 to 3771. [2020-10-15 03:25:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3771 states. [2020-10-15 03:25:30,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3771 states to 3771 states and 5371 transitions. [2020-10-15 03:25:30,709 INFO L78 Accepts]: Start accepts. Automaton has 3771 states and 5371 transitions. Word has length 79 [2020-10-15 03:25:30,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:30,709 INFO L479 AbstractCegarLoop]: Abstraction has 3771 states and 5371 transitions. [2020-10-15 03:25:30,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:25:30,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3771 states and 5371 transitions. [2020-10-15 03:25:30,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:25:30,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:30,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:30,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:25:30,714 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:30,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:30,714 INFO L82 PathProgramCache]: Analyzing trace with hash 2102529937, now seen corresponding path program 1 times [2020-10-15 03:25:30,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:30,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543524380] [2020-10-15 03:25:30,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:30,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:31,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:31,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:33,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:33,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:35,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:35,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:25:35,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:25:35,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:25:35,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:35,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:25:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:25:35,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:37,257 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:25:37,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:37,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:37,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:37,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:37,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:37,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:25:37,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:37,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:37,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:37,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:37,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:37,320 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 03:25:37,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543524380] [2020-10-15 03:25:37,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:37,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:25:37,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109015478] [2020-10-15 03:25:37,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:25:37,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:37,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:25:37,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:25:37,322 INFO L87 Difference]: Start difference. First operand 3771 states and 5371 transitions. Second operand 8 states. [2020-10-15 03:25:38,864 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 574 [2020-10-15 03:25:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:44,736 INFO L93 Difference]: Finished difference Result 9168 states and 13397 transitions. [2020-10-15 03:25:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:25:44,737 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:25:44,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:44,757 INFO L225 Difference]: With dead ends: 9168 [2020-10-15 03:25:44,758 INFO L226 Difference]: Without dead ends: 8133 [2020-10-15 03:25:44,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:25:44,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8133 states. [2020-10-15 03:25:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8133 to 3757. [2020-10-15 03:25:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3757 states. [2020-10-15 03:25:45,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5353 transitions. [2020-10-15 03:25:45,229 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5353 transitions. Word has length 79 [2020-10-15 03:25:45,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:45,229 INFO L479 AbstractCegarLoop]: Abstraction has 3757 states and 5353 transitions. [2020-10-15 03:25:45,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:25:45,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5353 transitions. [2020-10-15 03:25:45,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:25:45,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:45,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:45,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:25:45,232 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:45,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:45,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1777617547, now seen corresponding path program 1 times [2020-10-15 03:25:45,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:45,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712570001] [2020-10-15 03:25:45,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:45,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:45,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:45,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:45,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:46,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:46,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:46,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:48,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:48,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:49,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:50,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:50,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:25:50,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:25:50,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:25:50,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:50,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:50,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:25:50,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:25:50,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 03:25:50,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:25:51,711 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:25:51,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:51,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:51,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:51,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:51,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:51,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 03:25:51,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:51,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:25:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:51,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:25:51,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:51,796 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 03:25:51,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712570001] [2020-10-15 03:25:51,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:51,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:25:51,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376097606] [2020-10-15 03:25:51,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:25:51,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:51,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:25:51,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:25:51,798 INFO L87 Difference]: Start difference. First operand 3757 states and 5353 transitions. Second operand 9 states. [2020-10-15 03:25:53,245 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 570 [2020-10-15 03:25:59,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:59,424 INFO L93 Difference]: Finished difference Result 12329 states and 18183 transitions. [2020-10-15 03:25:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:25:59,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-10-15 03:25:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:59,442 INFO L225 Difference]: With dead ends: 12329 [2020-10-15 03:25:59,443 INFO L226 Difference]: Without dead ends: 10239 [2020-10-15 03:25:59,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:59,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2020-10-15 03:25:59,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 3721. [2020-10-15 03:25:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3721 states. [2020-10-15 03:25:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3721 states to 3721 states and 5306 transitions. [2020-10-15 03:25:59,848 INFO L78 Accepts]: Start accepts. Automaton has 3721 states and 5306 transitions. Word has length 81 [2020-10-15 03:25:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:59,848 INFO L479 AbstractCegarLoop]: Abstraction has 3721 states and 5306 transitions. [2020-10-15 03:25:59,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:25:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3721 states and 5306 transitions. [2020-10-15 03:25:59,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:25:59,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:59,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:59,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:25:59,852 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:59,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:59,853 INFO L82 PathProgramCache]: Analyzing trace with hash -954525581, now seen corresponding path program 1 times [2020-10-15 03:25:59,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:59,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930712296] [2020-10-15 03:25:59,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:59,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:59,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:02,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:02,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:02,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:04,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:04,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:26:04,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:26:04,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-15 03:26:04,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:04,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:26:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:04,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:26:04,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:06,472 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:26:06,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:06,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:06,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:06,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:06,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:26:06,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:06,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:06,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:06,534 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 03:26:06,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930712296] [2020-10-15 03:26:06,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:06,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:26:06,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325077137] [2020-10-15 03:26:06,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:26:06,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:06,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:26:06,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:06,538 INFO L87 Difference]: Start difference. First operand 3721 states and 5306 transitions. Second operand 8 states. [2020-10-15 03:26:08,065 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-15 03:26:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:14,178 INFO L93 Difference]: Finished difference Result 9221 states and 13481 transitions. [2020-10-15 03:26:14,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:26:14,179 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:26:14,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:14,189 INFO L225 Difference]: With dead ends: 9221 [2020-10-15 03:26:14,190 INFO L226 Difference]: Without dead ends: 7121 [2020-10-15 03:26:14,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:26:14,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7121 states. [2020-10-15 03:26:14,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7121 to 3678. [2020-10-15 03:26:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3678 states. [2020-10-15 03:26:14,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 5250 transitions. [2020-10-15 03:26:14,592 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 5250 transitions. Word has length 81 [2020-10-15 03:26:14,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:14,592 INFO L479 AbstractCegarLoop]: Abstraction has 3678 states and 5250 transitions. [2020-10-15 03:26:14,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:26:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 5250 transitions. [2020-10-15 03:26:14,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:26:14,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:14,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:26:14,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:26:14,596 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:14,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1681159503, now seen corresponding path program 1 times [2020-10-15 03:26:14,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:14,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865305466] [2020-10-15 03:26:14,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:14,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:14,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:14,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:15,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:15,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:15,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:15,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:16,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:16,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:16,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:18,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:19,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:19,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:26:19,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:26:19,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-15 03:26:19,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:19,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:26:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:26:19,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:21,083 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:26:21,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:21,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:21,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:21,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:21,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:21,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:26:21,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:21,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:21,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:21,137 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 03:26:21,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865305466] [2020-10-15 03:26:21,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:21,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:26:21,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212181607] [2020-10-15 03:26:21,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:26:21,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:21,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:26:21,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:21,138 INFO L87 Difference]: Start difference. First operand 3678 states and 5250 transitions. Second operand 8 states. [2020-10-15 03:26:22,620 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 571 [2020-10-15 03:26:29,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:29,590 INFO L93 Difference]: Finished difference Result 14220 states and 21074 transitions. [2020-10-15 03:26:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:26:29,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:26:29,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:29,608 INFO L225 Difference]: With dead ends: 14220 [2020-10-15 03:26:29,608 INFO L226 Difference]: Without dead ends: 12215 [2020-10-15 03:26:29,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:26:29,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12215 states. [2020-10-15 03:26:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12215 to 7929. [2020-10-15 03:26:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7929 states. [2020-10-15 03:26:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7929 states to 7929 states and 11588 transitions. [2020-10-15 03:26:30,353 INFO L78 Accepts]: Start accepts. Automaton has 7929 states and 11588 transitions. Word has length 81 [2020-10-15 03:26:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:30,353 INFO L479 AbstractCegarLoop]: Abstraction has 7929 states and 11588 transitions. [2020-10-15 03:26:30,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:26:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 7929 states and 11588 transitions. [2020-10-15 03:26:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:26:30,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:30,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:26:30,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:26:30,358 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:30,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:30,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1765292625, now seen corresponding path program 1 times [2020-10-15 03:26:30,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:30,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676758095] [2020-10-15 03:26:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:30,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:30,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:30,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:30,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:31,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:31,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:31,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:32,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:32,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:35,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:35,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:26:35,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:26:35,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:26:35,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:35,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:35,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:26:35,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:35,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:26:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:36,779 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:26:36,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:36,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:36,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:36,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:36,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:36,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:26:36,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:36,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:36,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:36,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:36,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:36,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:36,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676758095] [2020-10-15 03:26:36,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:36,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:26:36,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648232959] [2020-10-15 03:26:36,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:26:36,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:36,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:26:36,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:26:36,834 INFO L87 Difference]: Start difference. First operand 7929 states and 11588 transitions. Second operand 7 states. [2020-10-15 03:26:38,244 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 569 [2020-10-15 03:26:45,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:45,141 INFO L93 Difference]: Finished difference Result 20207 states and 29900 transitions. [2020-10-15 03:26:45,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:26:45,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-10-15 03:26:45,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:45,162 INFO L225 Difference]: With dead ends: 20207 [2020-10-15 03:26:45,162 INFO L226 Difference]: Without dead ends: 18075 [2020-10-15 03:26:45,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:26:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18075 states. [2020-10-15 03:26:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18075 to 7819. [2020-10-15 03:26:46,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7819 states. [2020-10-15 03:26:46,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7819 states to 7819 states and 11443 transitions. [2020-10-15 03:26:46,039 INFO L78 Accepts]: Start accepts. Automaton has 7819 states and 11443 transitions. Word has length 81 [2020-10-15 03:26:46,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:46,039 INFO L479 AbstractCegarLoop]: Abstraction has 7819 states and 11443 transitions. [2020-10-15 03:26:46,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:26:46,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7819 states and 11443 transitions. [2020-10-15 03:26:46,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:26:46,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:46,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:26:46,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:26:46,042 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:46,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:46,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1974647283, now seen corresponding path program 1 times [2020-10-15 03:26:46,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:46,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299856758] [2020-10-15 03:26:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:46,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:46,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:46,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:46,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:47,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:47,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:47,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:47,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:48,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:49,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:49,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:49,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:50,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:50,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:51,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:51,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:26:51,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:26:51,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:26:51,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:51,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:26:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:26:51,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:52,506 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-15 03:26:52,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:52,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:52,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:52,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:52,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:52,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:26:52,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:52,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:52,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:52,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299856758] [2020-10-15 03:26:52,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:52,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:26:52,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549712828] [2020-10-15 03:26:52,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:26:52,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:52,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:26:52,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:52,562 INFO L87 Difference]: Start difference. First operand 7819 states and 11443 transitions. Second operand 8 states. [2020-10-15 03:26:54,061 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 571