/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:46:53,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:46:53,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:46:53,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:46:53,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:46:53,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:46:53,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:46:53,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:46:53,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:46:53,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:46:53,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:46:53,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:46:53,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:46:53,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:46:53,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:46:53,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:46:53,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:46:53,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:46:53,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:46:53,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:46:53,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:46:53,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:46:53,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:46:53,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:46:53,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:46:53,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:46:53,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:46:53,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:46:53,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:46:53,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:46:53,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:46:53,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:46:53,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:46:53,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:46:53,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:46:53,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:46:53,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:46:53,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:46:53,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:46:53,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:46:53,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:46:53,373 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 [2020-10-14 07:46:53,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:46:53,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:46:53,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:46:53,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:46:53,410 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:46:53,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:46:53,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:46:53,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:46:53,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:46:53,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:46:53,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:46:53,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:46:53,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:46:53,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:46:53,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:46:53,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:46:53,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:46:53,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:46:53,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:46:53,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:46:53,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:46:53,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:46:53,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:46:53,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:46:53,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:46:53,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:46:53,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:46:53,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:46:53,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:46:53,415 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:46:53,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:46:53,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:46:53,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:46:53,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:46:53,742 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:46:53,743 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-14 07:46:53,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8cf8da8/67ea2f83c6da43f9ba6f400cdb73a8bd/FLAGed9b9fd60 [2020-10-14 07:46:54,387 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:46:54,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-14 07:46:54,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8cf8da8/67ea2f83c6da43f9ba6f400cdb73a8bd/FLAGed9b9fd60 [2020-10-14 07:46:54,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8cf8da8/67ea2f83c6da43f9ba6f400cdb73a8bd [2020-10-14 07:46:54,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:46:54,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:46:54,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:46:54,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:46:54,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:46:54,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:46:54" (1/1) ... [2020-10-14 07:46:54,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2daa1dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:54, skipping insertion in model container [2020-10-14 07:46:54,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:46:54" (1/1) ... [2020-10-14 07:46:54,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:46:54,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:46:55,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:46:55,152 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:46:55,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:46:55,322 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:46:55,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55 WrapperNode [2020-10-14 07:46:55,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:46:55,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:46:55,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:46:55,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:46:55,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (1/1) ... [2020-10-14 07:46:55,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (1/1) ... [2020-10-14 07:46:55,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (1/1) ... [2020-10-14 07:46:55,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (1/1) ... [2020-10-14 07:46:55,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (1/1) ... [2020-10-14 07:46:55,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (1/1) ... [2020-10-14 07:46:55,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (1/1) ... [2020-10-14 07:46:55,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:46:55,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:46:55,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:46:55,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:46:55,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (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 [2020-10-14 07:46:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:46:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:46:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:46:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:46:55,518 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:46:55,518 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:46:55,518 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 07:46:55,519 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:46:55,519 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:46:55,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:46:55,520 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:46:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:46:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:46:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 07:46:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:46:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:46:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:46:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:46:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:46:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:46:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:46:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:46:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:46:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 07:46:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:46:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:46:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:46:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:46:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:46:56,881 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:46:56,882 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:46:56,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:46:56 BoogieIcfgContainer [2020-10-14 07:46:56,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:46:56,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:46:56,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:46:56,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:46:56,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:46:54" (1/3) ... [2020-10-14 07:46:56,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7dfde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:46:56, skipping insertion in model container [2020-10-14 07:46:56,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:46:55" (2/3) ... [2020-10-14 07:46:56,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7dfde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:46:56, skipping insertion in model container [2020-10-14 07:46:56,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:46:56" (3/3) ... [2020-10-14 07:46:56,899 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-14 07:46:56,911 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:46:56,920 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:46:56,935 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:46:56,963 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:46:56,963 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:46:56,963 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:46:56,963 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:46:56,964 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:46:56,964 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:46:56,964 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:46:56,964 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:46:56,989 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-10-14 07:46:57,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 07:46:57,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:46:57,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:46:57,008 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:46:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:46:57,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1386901003, now seen corresponding path program 1 times [2020-10-14 07:46:57,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:46:57,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953846104] [2020-10-14 07:46:57,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:46:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:57,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 07:46:58,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 678 [2020-10-14 07:46:58,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 07:46:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:46:58,609 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:46:58,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:46:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:58,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:46:58,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:46:58,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:58,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:46:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:58,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 07:46:58,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 07:46:58,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:58,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 07:46:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:58,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:46:58,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:46:58,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:46:58,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:58,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 07:46:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:58,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:58,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:46:58,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:58,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:46:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:58,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:58,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:46:58,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:46:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:58,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:58,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:46:58,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:58,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:46:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:58,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:58,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:46:58,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:58,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 07:46:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:58,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:58,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:58,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:58,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:58,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:58,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:58,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:58,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:46:58,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953846104] [2020-10-14 07:46:58,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:46:58,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:46:58,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285437211] [2020-10-14 07:46:59,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:46:59,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:46:59,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:46:59,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:46:59,018 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 7 states. [2020-10-14 07:47:00,155 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 07:47:01,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:01,328 INFO L93 Difference]: Finished difference Result 508 states and 855 transitions. [2020-10-14 07:47:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:47:01,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-14 07:47:01,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:01,374 INFO L225 Difference]: With dead ends: 508 [2020-10-14 07:47:01,374 INFO L226 Difference]: Without dead ends: 368 [2020-10-14 07:47:01,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:47:01,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-14 07:47:01,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-14 07:47:01,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-14 07:47:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 579 transitions. [2020-10-14 07:47:01,510 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 579 transitions. Word has length 104 [2020-10-14 07:47:01,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:01,511 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 579 transitions. [2020-10-14 07:47:01,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:47:01,511 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 579 transitions. [2020-10-14 07:47:01,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 07:47:01,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:01,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:01,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:47:01,517 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:01,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:01,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1810547725, now seen corresponding path program 1 times [2020-10-14 07:47:01,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:01,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485173738] [2020-10-14 07:47:01,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:01,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:02,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 07:47:02,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:02,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1372 [2020-10-14 07:47:02,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:02,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:02,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:47:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 07:47:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:47:02,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:03,472 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:47:03,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:03,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:03,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:03,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:03,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:47:03,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:03,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:03,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:03,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:03,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:03,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 07:47:03,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 07:47:03,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:03,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:03,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:47:03,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:03,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 07:47:03,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 07:47:03,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 07:47:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:03,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:03,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:03,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:03,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:03,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:03,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:03,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:03,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:47:03,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:47:03,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:03,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:03,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 07:47:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:03,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:03,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:03,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:03,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:03,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:03,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:03,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:03,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:03,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:47:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:03,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:03,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:03,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:03,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:03,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:03,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:03,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:03,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:47:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:04,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:04,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:04,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:04,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:04,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:47:04,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:04,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:04,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:47:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:04,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:04,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:04,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:04,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:04,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:04,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:04,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:04,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:04,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:04,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:04,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:04,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 07:47:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:04,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:04,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:04,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:04,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:04,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:04,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:04,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:04,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:04,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:04,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:04,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:04,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485173738] [2020-10-14 07:47:04,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:04,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:47:04,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619999127] [2020-10-14 07:47:04,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:47:04,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:04,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:47:04,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:47:04,131 INFO L87 Difference]: Start difference. First operand 336 states and 579 transitions. Second operand 13 states. [2020-10-14 07:47:06,502 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 07:47:06,877 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 07:47:07,323 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 07:47:07,723 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:47:09,303 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 07:47:10,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:10,447 INFO L93 Difference]: Finished difference Result 506 states and 847 transitions. [2020-10-14 07:47:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:47:10,448 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-14 07:47:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:10,453 INFO L225 Difference]: With dead ends: 506 [2020-10-14 07:47:10,453 INFO L226 Difference]: Without dead ends: 368 [2020-10-14 07:47:10,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:47:10,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-14 07:47:10,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-14 07:47:10,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-14 07:47:10,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 537 transitions. [2020-10-14 07:47:10,496 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 537 transitions. Word has length 104 [2020-10-14 07:47:10,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:10,497 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 537 transitions. [2020-10-14 07:47:10,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:47:10,497 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 537 transitions. [2020-10-14 07:47:10,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-14 07:47:10,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:10,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:10,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:47:10,502 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:10,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:10,502 INFO L82 PathProgramCache]: Analyzing trace with hash -348312971, now seen corresponding path program 1 times [2020-10-14 07:47:10,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:10,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789849510] [2020-10-14 07:47:10,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:10,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:11,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:11,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:15,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:15,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 07:47:15,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:47:15,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 07:47:15,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:15,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:47:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 07:47:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:47:15,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:47:16,011 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:47:16,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:16,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:47:16,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:16,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:16,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:47:16,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 07:47:16,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:16,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:16,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 07:47:16,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:16,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:47:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:16,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:16,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:16,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:16,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:47:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:16,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:47:16,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:47:16,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:47:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:16,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:47:16,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:16,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:16,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:47:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:16,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:47:16,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:16,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:47:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:16,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:47:16,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:47:16,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:47:16,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:47:16,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:16,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 07:47:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:16,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:16,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:16,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:16,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789849510] [2020-10-14 07:47:16,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:16,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:47:16,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986792214] [2020-10-14 07:47:16,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:47:16,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:16,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:47:16,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:47:16,546 INFO L87 Difference]: Start difference. First operand 336 states and 537 transitions. Second operand 10 states. [2020-10-14 07:47:16,895 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:47:18,811 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 07:47:19,235 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 07:47:20,160 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:47:22,006 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-14 07:47:22,151 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 07:47:22,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:22,427 INFO L93 Difference]: Finished difference Result 670 states and 1067 transitions. [2020-10-14 07:47:22,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:47:22,428 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-14 07:47:22,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:22,435 INFO L225 Difference]: With dead ends: 670 [2020-10-14 07:47:22,436 INFO L226 Difference]: Without dead ends: 538 [2020-10-14 07:47:22,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:47:22,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-14 07:47:22,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 468. [2020-10-14 07:47:22,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-10-14 07:47:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 750 transitions. [2020-10-14 07:47:22,499 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 750 transitions. Word has length 145 [2020-10-14 07:47:22,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:22,502 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 750 transitions. [2020-10-14 07:47:22,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:47:22,502 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 750 transitions. [2020-10-14 07:47:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-14 07:47:22,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:22,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:22,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:47:22,508 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:22,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:22,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1060867361, now seen corresponding path program 1 times [2020-10-14 07:47:22,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:22,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174957779] [2020-10-14 07:47:22,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:22,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:25,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:26,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:27,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:27,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-14 07:47:27,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:47:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 07:47:27,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:27,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:47:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 07:47:27,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:27,965 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:47:27,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:27,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:27,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:27,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:27,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:27,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:47:27,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:27,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:27,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:27,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:27,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:27,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:27,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:28,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:28,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:28,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:47:28,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 07:47:28,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:28,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:47:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:47:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:28,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:28,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:28,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:28,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:28,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:28,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:28,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:28,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:28,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:28,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:28,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:47:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:28,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:28,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:28,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:28,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:28,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:47:28,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:28,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:28,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:28,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:28,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:28,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:28,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:47:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:28,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:28,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:28,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:28,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:28,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:47:28,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:28,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:28,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:28,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:28,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:28,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:47:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:28,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:28,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:28,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:28,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:28,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:28,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:28,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:28,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:47:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:28,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:28,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:47:28,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:28,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:47:28,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:28,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:47:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:47:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:28,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 07:47:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:28,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:28,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:28,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:28,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:28,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:28,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:28,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:28,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:28,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174957779] [2020-10-14 07:47:28,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:28,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:47:28,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230815561] [2020-10-14 07:47:28,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:47:28,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:28,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:47:28,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:47:28,688 INFO L87 Difference]: Start difference. First operand 468 states and 750 transitions. Second operand 10 states. [2020-10-14 07:47:29,035 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:47:29,404 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-14 07:47:29,915 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 07:47:30,603 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 246 [2020-10-14 07:47:34,803 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:47:36,799 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:47:37,875 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:47:38,122 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:47:38,927 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:47:39,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:39,836 INFO L93 Difference]: Finished difference Result 1922 states and 3083 transitions. [2020-10-14 07:47:39,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:47:39,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-14 07:47:39,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:39,848 INFO L225 Difference]: With dead ends: 1922 [2020-10-14 07:47:39,848 INFO L226 Difference]: Without dead ends: 1491 [2020-10-14 07:47:39,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:47:39,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2020-10-14 07:47:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1312. [2020-10-14 07:47:40,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1312 states. [2020-10-14 07:47:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 2101 transitions. [2020-10-14 07:47:40,023 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 2101 transitions. Word has length 148 [2020-10-14 07:47:40,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:40,025 INFO L479 AbstractCegarLoop]: Abstraction has 1312 states and 2101 transitions. [2020-10-14 07:47:40,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:47:40,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 2101 transitions. [2020-10-14 07:47:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 07:47:40,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:40,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:40,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:47:40,032 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:40,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:40,032 INFO L82 PathProgramCache]: Analyzing trace with hash -2092161494, now seen corresponding path program 1 times [2020-10-14 07:47:40,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:40,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318985041] [2020-10-14 07:47:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:40,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:40,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:40,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:43,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:43,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:43,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 07:47:45,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:47:45,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 07:47:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:47:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 07:47:45,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:45,604 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:47:45,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:45,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:47:45,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:45,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:45,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:45,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:47:45,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 07:47:45,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 07:47:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:45,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:47:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:45,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:45,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:46,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:46,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:47:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:46,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:46,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:46,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:47:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:46,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:47:46,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:46,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:46,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:47:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:46,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:46,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:46,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:47:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:47:46,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:47:46,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:46,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:46,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:46,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:46,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 07:47:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:46,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:46,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:46,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:46,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318985041] [2020-10-14 07:47:46,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:46,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:47:46,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763772076] [2020-10-14 07:47:46,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:47:46,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:46,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:47:46,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:47:46,306 INFO L87 Difference]: Start difference. First operand 1312 states and 2101 transitions. Second operand 10 states. [2020-10-14 07:47:46,662 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:47:47,056 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 07:47:47,619 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-14 07:47:48,322 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 246 [2020-10-14 07:47:52,621 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:47:53,504 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:47:53,829 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:47:54,663 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:47:54,969 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:47:55,839 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:47:56,251 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:47:57,012 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:47:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:58,193 INFO L93 Difference]: Finished difference Result 5064 states and 8076 transitions. [2020-10-14 07:47:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:47:58,194 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-14 07:47:58,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:58,214 INFO L225 Difference]: With dead ends: 5064 [2020-10-14 07:47:58,214 INFO L226 Difference]: Without dead ends: 3843 [2020-10-14 07:47:58,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:47:58,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2020-10-14 07:47:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3423. [2020-10-14 07:47:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3423 states. [2020-10-14 07:47:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 5424 transitions. [2020-10-14 07:47:58,533 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 5424 transitions. Word has length 150 [2020-10-14 07:47:58,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:58,533 INFO L479 AbstractCegarLoop]: Abstraction has 3423 states and 5424 transitions. [2020-10-14 07:47:58,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:47:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 5424 transitions. [2020-10-14 07:47:58,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 07:47:58,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:58,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:58,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:47:58,551 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:58,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:58,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1710652344, now seen corresponding path program 1 times [2020-10-14 07:47:58,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:58,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454352767] [2020-10-14 07:47:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:58,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:58,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:58,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:59,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:01,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:02,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:03,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:03,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 07:48:03,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:48:03,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 07:48:03,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:03,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:03,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:48:03,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:04,141 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:48:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:04,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:04,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:04,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:04,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:48:04,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:04,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:04,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:04,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:04,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:04,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:04,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:48:04,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 07:48:04,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:04,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:48:04,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:04,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:48:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:04,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:04,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:04,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:04,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:48:04,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:04,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:04,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:04,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:48:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:04,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:04,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:04,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:04,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:04,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:48:04,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:04,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:48:04,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:48:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:04,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:04,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:04,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:04,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:48:04,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:04,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:04,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:04,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:48:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:04,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:04,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:04,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:04,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:04,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:48:04,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:04,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:04,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:48:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:04,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:04,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:04,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:48:04,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:04,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:48:04,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:04,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:48:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:48:04,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:04,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 07:48:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:04,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:04,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:04,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:04,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:48:04,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:04,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:04,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:04,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:04,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:04,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:04,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454352767] [2020-10-14 07:48:04,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:04,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:48:04,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493219421] [2020-10-14 07:48:04,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:48:04,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:04,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:48:04,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:48:04,764 INFO L87 Difference]: Start difference. First operand 3423 states and 5424 transitions. Second operand 10 states. [2020-10-14 07:48:05,268 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:48:05,596 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 07:48:06,019 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-14 07:48:06,361 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:48:10,120 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:48:10,383 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:10,570 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:11,186 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:12,043 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:12,316 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:13,012 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:13,266 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:14,429 INFO L93 Difference]: Finished difference Result 10969 states and 17360 transitions. [2020-10-14 07:48:14,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:48:14,434 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-14 07:48:14,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:14,473 INFO L225 Difference]: With dead ends: 10969 [2020-10-14 07:48:14,473 INFO L226 Difference]: Without dead ends: 7895 [2020-10-14 07:48:14,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:48:14,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7895 states. [2020-10-14 07:48:15,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7895 to 7119. [2020-10-14 07:48:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7119 states. [2020-10-14 07:48:15,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7119 states to 7119 states and 11170 transitions. [2020-10-14 07:48:15,197 INFO L78 Accepts]: Start accepts. Automaton has 7119 states and 11170 transitions. Word has length 150 [2020-10-14 07:48:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:15,197 INFO L479 AbstractCegarLoop]: Abstraction has 7119 states and 11170 transitions. [2020-10-14 07:48:15,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:48:15,198 INFO L276 IsEmpty]: Start isEmpty. Operand 7119 states and 11170 transitions. [2020-10-14 07:48:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-14 07:48:15,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:15,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:15,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:48:15,218 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:15,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:15,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1262929036, now seen corresponding path program 1 times [2020-10-14 07:48:15,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:15,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227672480] [2020-10-14 07:48:15,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:15,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:15,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:15,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:15,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:15,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:20,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:20,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 07:48:20,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:48:20,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 07:48:20,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:20,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:20,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:20,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:20,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:48:20,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:20,776 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:48:20,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:20,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:20,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:20,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:20,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:20,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:48:20,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:20,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:20,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:20,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:20,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:20,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:20,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:20,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:48:20,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:20,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 07:48:20,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:20,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:20,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:21,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:48:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:21,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:48:21,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:21,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:48:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:21,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:48:21,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:21,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:48:21,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:48:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:21,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:48:21,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:21,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:21,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:21,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:48:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:21,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:48:21,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:21,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:21,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:48:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:48:21,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:48:21,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:21,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:48:21,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:48:21,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:21,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 07:48:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:48:21,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:21,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:21,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227672480] [2020-10-14 07:48:21,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:21,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:48:21,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726208949] [2020-10-14 07:48:21,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:48:21,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:21,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:48:21,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:48:21,454 INFO L87 Difference]: Start difference. First operand 7119 states and 11170 transitions. Second operand 10 states. [2020-10-14 07:48:21,878 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:48:22,225 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 07:48:22,629 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-14 07:48:22,980 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:48:26,415 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:48:26,664 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:26,847 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:27,430 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:27,688 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:28,264 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:28,558 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:29,288 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:29,512 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:30,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:30,572 INFO L93 Difference]: Finished difference Result 21545 states and 33558 transitions. [2020-10-14 07:48:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:48:30,574 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-14 07:48:30,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:30,632 INFO L225 Difference]: With dead ends: 21545 [2020-10-14 07:48:30,632 INFO L226 Difference]: Without dead ends: 14506 [2020-10-14 07:48:30,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:48:30,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14506 states. [2020-10-14 07:48:31,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14506 to 13016. [2020-10-14 07:48:31,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13016 states. [2020-10-14 07:48:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13016 states to 13016 states and 19959 transitions. [2020-10-14 07:48:31,794 INFO L78 Accepts]: Start accepts. Automaton has 13016 states and 19959 transitions. Word has length 151 [2020-10-14 07:48:31,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:31,794 INFO L479 AbstractCegarLoop]: Abstraction has 13016 states and 19959 transitions. [2020-10-14 07:48:31,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:48:31,794 INFO L276 IsEmpty]: Start isEmpty. Operand 13016 states and 19959 transitions. [2020-10-14 07:48:31,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-14 07:48:31,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:31,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:31,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:48:31,825 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:31,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:31,825 INFO L82 PathProgramCache]: Analyzing trace with hash 706508707, now seen corresponding path program 1 times [2020-10-14 07:48:31,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:31,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285185288] [2020-10-14 07:48:31,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:31,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:32,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:32,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:32,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:32,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:32,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:33,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:36,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:36,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 07:48:36,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:48:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 07:48:36,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:36,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 07:48:36,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,344 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:48:37,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:37,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:37,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:37,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:37,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:48:37,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:37,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:37,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:37,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:37,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:37,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:48:37,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:48:37,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 07:48:37,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:37,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:37,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:37,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:37,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:48:37,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 07:48:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:37,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:37,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:37,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:37,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:48:37,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:37,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:37,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:37,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:37,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:37,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 07:48:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:37,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:37,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:37,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:37,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:37,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:37,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 07:48:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:37,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:37,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:37,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:37,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:48:37,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:37,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:37,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:37,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 07:48:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:37,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:37,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:37,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:37,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:37,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:37,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:37,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:37,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:37,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-14 07:48:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:37,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:37,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:48:37,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:48:37,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:37,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:48:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:48:37,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-14 07:48:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:37,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:37,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:37,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:37,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:37,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:37,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:37,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:37,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:37,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:37,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:37,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:37,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285185288] [2020-10-14 07:48:37,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:37,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:48:37,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56578763] [2020-10-14 07:48:37,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:48:37,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:37,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:48:37,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:48:37,904 INFO L87 Difference]: Start difference. First operand 13016 states and 19959 transitions. Second operand 10 states. [2020-10-14 07:48:38,271 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:48:38,646 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-14 07:48:39,280 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 07:48:39,994 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 246 [2020-10-14 07:48:45,349 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:48:45,665 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:46,287 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:46,518 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:47,360 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:48,424 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:48,740 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:49,444 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:51,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:51,113 INFO L93 Difference]: Finished difference Result 53196 states and 81454 transitions. [2020-10-14 07:48:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:48:51,114 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-14 07:48:51,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:51,258 INFO L225 Difference]: With dead ends: 53196 [2020-10-14 07:48:51,258 INFO L226 Difference]: Without dead ends: 41088 [2020-10-14 07:48:51,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:48:51,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41088 states. [2020-10-14 07:48:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41088 to 37168. [2020-10-14 07:48:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37168 states. [2020-10-14 07:48:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37168 states to 37168 states and 56653 transitions. [2020-10-14 07:48:54,809 INFO L78 Accepts]: Start accepts. Automaton has 37168 states and 56653 transitions. Word has length 152 [2020-10-14 07:48:54,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:54,810 INFO L479 AbstractCegarLoop]: Abstraction has 37168 states and 56653 transitions. [2020-10-14 07:48:54,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:48:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand 37168 states and 56653 transitions. [2020-10-14 07:48:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-14 07:48:54,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:54,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:54,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:48:54,880 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:54,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:54,880 INFO L82 PathProgramCache]: Analyzing trace with hash 730634856, now seen corresponding path program 1 times [2020-10-14 07:48:54,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:54,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459797551] [2020-10-14 07:48:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:54,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:55,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:55,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:56,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:56,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:56,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:57,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:58,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:59,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:59,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 07:48:59,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:48:59,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:48:59,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:59,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:59,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:59,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:59,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 07:48:59,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:00,298 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:49:00,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:00,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:00,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:49:00,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:00,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:00,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:49:00,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:00,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 07:49:00,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:49:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:49:00,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:00,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:49:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:00,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:00,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:00,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:49:00,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:00,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:00,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:49:00,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:00,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:49:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:00,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:00,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:00,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:00,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:00,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:00,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:49:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:00,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:00,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:00,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:00,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:00,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:00,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:00,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:00,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:49:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:00,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:00,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:00,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:00,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:00,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:49:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:00,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:49:00,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:00,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:49:00,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:49:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:00,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-14 07:49:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:00,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:00,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:00,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:00,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:00,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:00,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:00,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459797551] [2020-10-14 07:49:00,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:00,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:49:00,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227797361] [2020-10-14 07:49:00,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:49:00,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:00,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:49:00,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:49:00,695 INFO L87 Difference]: Start difference. First operand 37168 states and 56653 transitions. Second operand 10 states. [2020-10-14 07:49:01,073 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:49:01,418 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 07:49:01,940 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-14 07:49:02,449 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:49:07,444 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:49:07,761 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:08,025 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:49:08,536 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:08,923 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:49:09,541 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:09,970 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:49:10,554 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:10,855 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:49:13,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:49:13,223 INFO L93 Difference]: Finished difference Result 113556 states and 172681 transitions. [2020-10-14 07:49:13,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:49:13,224 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-14 07:49:13,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:49:13,479 INFO L225 Difference]: With dead ends: 113556 [2020-10-14 07:49:13,480 INFO L226 Difference]: Without dead ends: 76794 [2020-10-14 07:49:13,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:49:13,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76794 states. [2020-10-14 07:49:19,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76794 to 69320. [2020-10-14 07:49:19,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69320 states. [2020-10-14 07:49:20,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69320 states to 69320 states and 103843 transitions. [2020-10-14 07:49:20,020 INFO L78 Accepts]: Start accepts. Automaton has 69320 states and 103843 transitions. Word has length 152 [2020-10-14 07:49:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:49:20,021 INFO L479 AbstractCegarLoop]: Abstraction has 69320 states and 103843 transitions. [2020-10-14 07:49:20,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:49:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 69320 states and 103843 transitions. [2020-10-14 07:49:20,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-14 07:49:20,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:49:20,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:49:20,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:49:20,105 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:49:20,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:49:20,106 INFO L82 PathProgramCache]: Analyzing trace with hash 165814248, now seen corresponding path program 1 times [2020-10-14 07:49:20,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:49:20,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251597235] [2020-10-14 07:49:20,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:49:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:20,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:20,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:20,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:20,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:23,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:23,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:23,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:24,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:24,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 07:49:25,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:49:25,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 07:49:25,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:49:25,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 07:49:25,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 07:49:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,549 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:49:25,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:25,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:25,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:49:25,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:25,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:25,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:25,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:25,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:49:25,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:25,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 07:49:25,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:49:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:49:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:25,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:25,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:25,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:49:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:49:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:25,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:25,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:49:25,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:49:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:25,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:25,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:25,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:49:25,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:25,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:49:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:25,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:49:25,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:49:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:49:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:49:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:49:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:25,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:49:25,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:25,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:25,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:25,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:49:25,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:25,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 07:49:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:25,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:25,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:25,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:25,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:25,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:25,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:25,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:25,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:25,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:25,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251597235] [2020-10-14 07:49:25,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:25,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:49:25,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927826853] [2020-10-14 07:49:25,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:49:25,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:25,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:49:25,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:49:25,906 INFO L87 Difference]: Start difference. First operand 69320 states and 103843 transitions. Second operand 10 states. [2020-10-14 07:49:26,303 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:49:30,081 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 07:49:30,533 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 07:49:31,340 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 07:49:31,568 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:32,049 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 07:49:35,280 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-14 07:49:35,423 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 07:49:35,606 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:49:37,723 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-14 07:49:38,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:49:38,088 INFO L93 Difference]: Finished difference Result 134620 states and 203045 transitions. [2020-10-14 07:49:38,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:49:38,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-14 07:49:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:49:38,369 INFO L225 Difference]: With dead ends: 134620 [2020-10-14 07:49:38,369 INFO L226 Difference]: Without dead ends: 103122 [2020-10-14 07:49:38,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:49:38,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103122 states. [2020-10-14 07:49:43,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103122 to 91536. [2020-10-14 07:49:43,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91536 states. [2020-10-14 07:49:43,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91536 states to 91536 states and 137243 transitions. [2020-10-14 07:49:43,501 INFO L78 Accepts]: Start accepts. Automaton has 91536 states and 137243 transitions. Word has length 153 [2020-10-14 07:49:43,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:49:43,501 INFO L479 AbstractCegarLoop]: Abstraction has 91536 states and 137243 transitions. [2020-10-14 07:49:43,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:49:43,501 INFO L276 IsEmpty]: Start isEmpty. Operand 91536 states and 137243 transitions. [2020-10-14 07:49:43,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 07:49:43,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:49:43,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:49:43,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:49:43,575 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:49:43,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:49:43,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1560682442, now seen corresponding path program 1 times [2020-10-14 07:49:43,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:49:43,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337353773] [2020-10-14 07:49:43,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:49:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:43,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:43,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:43,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:43,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:44,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:44,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:48,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:48,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:48,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:48,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 07:49:48,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:49:48,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:49:48,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:48,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 07:49:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:49:48,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:48,968 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:49:48,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:48,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:48,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:48,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:48,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:49:48,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:48,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:48,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:48,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:48,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:48,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:48,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:49,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:49,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:49:49,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:49:49,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-14 07:49:49,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:49,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:49,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:49:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:49:49,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:49,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 07:49:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:49,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:49,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:49,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:49,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:49:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:49,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:49,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 07:49:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:49,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:49,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:49,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:49,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:49:49,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:49,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:49,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 07:49:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:49,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:49,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:49,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:49,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:49:49,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:49,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:49,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:49,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 07:49:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:49,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:49,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:49:49,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:49,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:49,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:49,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:49,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:49,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:49:49,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:49,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:49,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 07:49:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:49,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:49,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:49:49,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:49,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:49,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:49,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:49,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 07:49:49,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:49,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:49,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 07:49:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:49,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:49,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:49,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:49,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:49,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:49,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:49,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:49,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:49,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:49,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:49,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337353773] [2020-10-14 07:49:49,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:49,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:49:49,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576261278] [2020-10-14 07:49:49,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:49:49,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:49,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:49:49,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:49:49,488 INFO L87 Difference]: Start difference. First operand 91536 states and 137243 transitions. Second operand 8 states. [2020-10-14 07:49:50,240 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:49:59,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:49:59,372 INFO L93 Difference]: Finished difference Result 219566 states and 325738 transitions. [2020-10-14 07:49:59,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:49:59,372 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2020-10-14 07:49:59,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:49:59,749 INFO L225 Difference]: With dead ends: 219566 [2020-10-14 07:49:59,750 INFO L226 Difference]: Without dead ends: 129791 [2020-10-14 07:49:59,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:49:59,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129791 states. [2020-10-14 07:50:05,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129791 to 92432. [2020-10-14 07:50:05,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92432 states. [2020-10-14 07:50:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92432 states to 92432 states and 138489 transitions. [2020-10-14 07:50:05,382 INFO L78 Accepts]: Start accepts. Automaton has 92432 states and 138489 transitions. Word has length 157 [2020-10-14 07:50:05,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:50:05,383 INFO L479 AbstractCegarLoop]: Abstraction has 92432 states and 138489 transitions. [2020-10-14 07:50:05,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:50:05,383 INFO L276 IsEmpty]: Start isEmpty. Operand 92432 states and 138489 transitions. [2020-10-14 07:50:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 07:50:05,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:50:05,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:50:05,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:50:05,445 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:50:05,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:50:05,445 INFO L82 PathProgramCache]: Analyzing trace with hash 741854465, now seen corresponding path program 1 times [2020-10-14 07:50:05,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:50:05,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677819433] [2020-10-14 07:50:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:50:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:05,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:05,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:05,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:05,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:10,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:10,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 07:50:10,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:50:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 07:50:10,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:10,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:10,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:50:10,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 07:50:10,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 07:50:10,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:10,863 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:50:10,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:50:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:10,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:10,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:10,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:50:10,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:50:10,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:50:10,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:10,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:10,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:50:10,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:50:10,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:50:10,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:10,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:50:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:10,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:10,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:10,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:50:10,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:50:10,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 07:50:10,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:10,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:50:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:50:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 07:50:10,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:10,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 07:50:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:10,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:10,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:10,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:50:10,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:50:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:50:10,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:10,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:10,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:50:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:50:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:50:10,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:11,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 07:50:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:11,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:11,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:50:11,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:50:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:50:11,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:11,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:50:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:50:11,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:50:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 07:50:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:11,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:11,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:11,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:50:11,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:50:11,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:50:11,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:11,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:11,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:50:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:50:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:50:11,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:11,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 07:50:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:11,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:11,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:11,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:50:11,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:50:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:50:11,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:11,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:50:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:50:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:50:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:11,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 07:50:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:11,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:11,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:50:11,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:50:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:50:11,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:11,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:50:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 07:50:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:50:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:11,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 07:50:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:11,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:11,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:50:11,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:50:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:50:11,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677819433] [2020-10-14 07:50:11,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:50:11,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:50:11,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778331992] [2020-10-14 07:50:11,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:50:11,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:50:11,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:50:11,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:50:11,226 INFO L87 Difference]: Start difference. First operand 92432 states and 138489 transitions. Second operand 10 states. [2020-10-14 07:50:11,590 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:50:15,384 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 07:50:16,098 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:50:16,648 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 07:50:17,692 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 07:50:20,691 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 07:50:21,822 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-14 07:50:21,978 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 07:50:22,212 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 07:50:22,546 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-14 07:50:23,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:50:23,894 INFO L93 Difference]: Finished difference Result 222844 states and 335831 transitions. [2020-10-14 07:50:23,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:50:23,895 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-14 07:50:23,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:50:24,385 INFO L225 Difference]: With dead ends: 222844 [2020-10-14 07:50:24,385 INFO L226 Difference]: Without dead ends: 167430 [2020-10-14 07:50:24,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:50:24,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167430 states.