/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:45:19,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:45:19,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:45:19,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:45:19,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:45:19,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:45:19,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:45:19,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:45:19,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:45:19,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:45:19,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:45:19,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:45:19,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:45:19,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:45:19,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:45:19,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:45:19,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:45:19,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:45:19,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:45:19,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:45:19,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:45:19,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:45:19,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:45:19,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:45:19,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:45:19,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:45:19,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:45:19,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:45:19,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:45:19,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:45:19,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:45:19,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:45:19,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:45:19,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:45:19,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:45:19,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:45:19,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:45:19,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:45:19,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:45:19,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:45:19,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:45:19,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:45:19,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:45:19,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:45:19,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:45:19,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:45:19,380 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:45:19,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:45:19,381 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:45:19,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:45:19,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:45:19,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:45:19,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:45:19,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:45:19,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:45:19,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:45:19,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:45:19,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:45:19,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:45:19,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:45:19,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:45:19,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:45:19,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:45:19,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:45:19,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:45:19,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:45:19,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:45:19,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:45:19,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:45:19,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:45:19,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:45:19,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:45:19,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:45:19,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:45:19,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:45:19,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:45:19,716 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:45:19,717 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-10-12 18:45:19,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/125f4a89d/d97c6c2740694f038fa2d2568f98854f/FLAGbf6ed2b92 [2020-10-12 18:45:20,292 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:45:20,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-10-12 18:45:20,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/125f4a89d/d97c6c2740694f038fa2d2568f98854f/FLAGbf6ed2b92 [2020-10-12 18:45:20,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/125f4a89d/d97c6c2740694f038fa2d2568f98854f [2020-10-12 18:45:20,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:45:20,650 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:45:20,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:45:20,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:45:20,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:45:20,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:45:20" (1/1) ... [2020-10-12 18:45:20,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1865218a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:20, skipping insertion in model container [2020-10-12 18:45:20,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:45:20" (1/1) ... [2020-10-12 18:45:20,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:45:20,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:45:20,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:45:20,993 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:45:21,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:45:21,175 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:45:21,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21 WrapperNode [2020-10-12 18:45:21,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:45:21,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:45:21,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:45:21,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:45:21,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (1/1) ... [2020-10-12 18:45:21,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (1/1) ... [2020-10-12 18:45:21,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (1/1) ... [2020-10-12 18:45:21,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (1/1) ... [2020-10-12 18:45:21,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (1/1) ... [2020-10-12 18:45:21,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (1/1) ... [2020-10-12 18:45:21,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (1/1) ... [2020-10-12 18:45:21,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:45:21,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:45:21,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:45:21,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:45:21,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:45:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:45:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:45:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:45:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:45:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:45:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:45:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:45:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:45:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-12 18:45:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:45:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:45:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:45:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:45:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:45:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:45:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:45:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:45:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:45:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:45:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:45:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:45:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:45:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:45:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:45:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:45:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:45:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 18:45:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:45:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:45:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:45:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:45:21,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:45:22,022 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:45:22,022 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:45:22,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:45:22 BoogieIcfgContainer [2020-10-12 18:45:22,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:45:22,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:45:22,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:45:22,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:45:22,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:45:20" (1/3) ... [2020-10-12 18:45:22,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2812c3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:45:22, skipping insertion in model container [2020-10-12 18:45:22,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:45:21" (2/3) ... [2020-10-12 18:45:22,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2812c3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:45:22, skipping insertion in model container [2020-10-12 18:45:22,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:45:22" (3/3) ... [2020-10-12 18:45:22,038 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-10-12 18:45:22,051 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:45:22,059 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:45:22,075 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:45:22,103 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:45:22,104 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:45:22,104 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:45:22,104 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:45:22,105 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:45:22,105 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:45:22,105 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:45:22,105 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:45:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-10-12 18:45:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-12 18:45:22,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:22,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:45:22,144 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:22,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:22,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1916076877, now seen corresponding path program 1 times [2020-10-12 18:45:22,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:22,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752644715] [2020-10-12 18:45:22,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:22,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:22,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:22,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:45:22,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:22,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-12 18:45:22,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:45:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:22,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:45:23,090 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:45:23,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:23,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:45:23,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:23,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:45:23,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:23,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:23,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:45:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:45:23,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:23,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:45:23,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:23,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:45:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:23,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:45:23,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:23,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:23,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:45:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:23,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:45:23,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:23,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:23,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:45:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:23,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:45:23,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:23,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:45:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:23,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:45:23,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:23,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:23,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:45:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:23,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:45:23,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:23,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:45:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:23,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 18:45:23,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:23,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:45:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:23,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:23,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:23,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:45:23,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:23,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:23,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:45:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:23,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:45:23,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752644715] [2020-10-12 18:45:23,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:45:23,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:45:23,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298338427] [2020-10-12 18:45:23,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:45:23,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:23,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:45:23,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:45:23,568 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 9 states. [2020-10-12 18:45:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:24,904 INFO L93 Difference]: Finished difference Result 245 states and 361 transitions. [2020-10-12 18:45:24,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:45:24,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-12 18:45:24,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:24,918 INFO L225 Difference]: With dead ends: 245 [2020-10-12 18:45:24,918 INFO L226 Difference]: Without dead ends: 145 [2020-10-12 18:45:24,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:45:24,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-12 18:45:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-12 18:45:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-12 18:45:24,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 220 transitions. [2020-10-12 18:45:24,975 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 220 transitions. Word has length 74 [2020-10-12 18:45:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:24,976 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 220 transitions. [2020-10-12 18:45:24,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:45:24,976 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 220 transitions. [2020-10-12 18:45:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-12 18:45:24,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:24,980 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] [2020-10-12 18:45:24,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:45:24,981 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:24,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1355377099, now seen corresponding path program 1 times [2020-10-12 18:45:24,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:24,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898892858] [2020-10-12 18:45:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:25,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:25,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:25,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:45:25,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-10-12 18:45:25,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:25,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:45:25,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:45:25,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:45:25,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:25,862 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:45:25,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:25,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:25,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:25,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:25,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:25,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:45:25,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:25,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:25,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:25,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:45:25,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:45:25,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:45:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:25,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:45:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:25,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:25,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:25,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:45:25,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:25,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:25,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:45:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:45:25,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:25,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:45:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:25,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:25,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:25,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:25,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:25,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:25,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:25,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:25,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:25,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:45:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:26,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:26,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:26,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:26,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:26,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:26,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:26,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:26,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:45:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:26,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:26,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:26,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:26,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:26,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:26,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:26,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:26,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:26,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:45:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:26,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:26,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:26,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:26,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:26,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:26,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:26,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:45:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:26,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:26,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:26,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:26,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:26,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:26,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:26,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:26,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:45:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:26,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:26,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:26,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:26,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:45:26,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:26,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:26,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:45:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:26,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:26,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:26,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:45:26,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:26,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:26,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:45:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:45:26,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898892858] [2020-10-12 18:45:26,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:45:26,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:45:26,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354606174] [2020-10-12 18:45:26,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:45:26,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:26,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:45:26,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:45:26,194 INFO L87 Difference]: Start difference. First operand 145 states and 220 transitions. Second operand 15 states. [2020-10-12 18:45:26,386 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-12 18:45:26,574 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:45:26,838 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-12 18:45:26,992 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:45:28,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:28,971 INFO L93 Difference]: Finished difference Result 250 states and 369 transitions. [2020-10-12 18:45:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:45:28,977 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2020-10-12 18:45:28,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:28,981 INFO L225 Difference]: With dead ends: 250 [2020-10-12 18:45:28,981 INFO L226 Difference]: Without dead ends: 157 [2020-10-12 18:45:28,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:45:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-12 18:45:29,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2020-10-12 18:45:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-12 18:45:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 180 transitions. [2020-10-12 18:45:29,007 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 180 transitions. Word has length 74 [2020-10-12 18:45:29,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:29,008 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 180 transitions. [2020-10-12 18:45:29,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:45:29,008 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 180 transitions. [2020-10-12 18:45:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-12 18:45:29,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:29,010 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] [2020-10-12 18:45:29,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:45:29,011 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:29,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:29,011 INFO L82 PathProgramCache]: Analyzing trace with hash 264536888, now seen corresponding path program 1 times [2020-10-12 18:45:29,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:29,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295959805] [2020-10-12 18:45:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:32,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 18:45:32,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:45:32,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3286 [2020-10-12 18:45:32,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 18:45:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:45:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 18:45:32,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:32,551 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:45:32,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:32,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:32,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:32,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:32,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:45:32,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:32,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:32,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:32,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:32,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:45:32,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:32,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 18:45:32,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:45:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:32,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:45:32,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:32,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:45:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:32,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:32,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:45:32,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:32,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:45:32,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:32,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:32,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:32,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:45:32,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:32,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:45:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:32,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:32,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:32,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:32,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:45:32,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:32,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:32,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:45:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:32,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:32,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:32,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:32,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:45:32,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:32,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:32,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:32,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:32,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:45:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:32,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:32,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:32,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:32,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:45:32,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:33,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:45:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:33,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:33,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:33,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:33,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:33,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:45:33,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:33,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:33,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:33,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:33,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:45:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:33,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:33,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:33,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:33,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:33,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:45:33,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:33,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:33,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:45:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:33,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:33,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:33,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:33,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:45:33,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:33,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:45:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:33,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:33,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:33,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:45:33,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:33,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:45:33,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:33,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:33,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:45:33,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:45:33,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:33,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:45:33,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295959805] [2020-10-12 18:45:33,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:45:33,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:45:33,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216479482] [2020-10-12 18:45:33,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:45:33,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:33,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:45:33,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:45:33,306 INFO L87 Difference]: Start difference. First operand 145 states and 180 transitions. Second operand 22 states. [2020-10-12 18:45:33,723 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-12 18:45:33,901 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:45:34,065 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-12 18:45:34,219 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:45:34,377 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:45:34,581 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:45:34,938 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 18:45:35,317 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:45:36,031 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:45:36,207 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:45:36,635 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:45:37,384 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:45:38,821 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:45:39,537 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-12 18:45:40,094 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:45:40,270 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-12 18:45:40,847 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:45:41,193 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 152 [2020-10-12 18:45:41,662 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-12 18:45:42,089 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 150 [2020-10-12 18:45:42,500 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 148 [2020-10-12 18:45:43,135 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-12 18:45:43,331 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:45:44,907 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-12 18:45:46,445 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 18:45:46,640 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:45:46,829 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-12 18:45:47,019 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:45:48,606 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-12 18:45:48,816 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-12 18:45:49,032 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-12 18:45:49,225 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:45:50,591 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-12 18:45:50,798 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-12 18:45:50,988 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-12 18:45:51,176 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:45:52,245 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-12 18:45:52,450 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-12 18:45:52,646 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-12 18:45:52,836 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:45:53,713 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-12 18:45:53,920 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-12 18:45:54,132 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-12 18:45:54,320 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:45:55,020 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-12 18:45:55,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:55,919 INFO L93 Difference]: Finished difference Result 1338 states and 1890 transitions. [2020-10-12 18:45:55,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2020-10-12 18:45:55,920 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 113 [2020-10-12 18:45:55,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:55,935 INFO L225 Difference]: With dead ends: 1338 [2020-10-12 18:45:55,935 INFO L226 Difference]: Without dead ends: 1251 [2020-10-12 18:45:55,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7470 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=3357, Invalid=16949, Unknown=0, NotChecked=0, Total=20306 [2020-10-12 18:45:55,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2020-10-12 18:45:56,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1127. [2020-10-12 18:45:56,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2020-10-12 18:45:56,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1607 transitions. [2020-10-12 18:45:56,088 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1607 transitions. Word has length 113 [2020-10-12 18:45:56,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:56,089 INFO L479 AbstractCegarLoop]: Abstraction has 1127 states and 1607 transitions. [2020-10-12 18:45:56,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:45:56,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1607 transitions. [2020-10-12 18:45:56,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:45:56,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:56,096 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] [2020-10-12 18:45:56,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:45:56,096 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:56,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1533772720, now seen corresponding path program 1 times [2020-10-12 18:45:56,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:56,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337019375] [2020-10-12 18:45:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:56,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:56,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:45:58,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:45:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1918 [2020-10-12 18:45:58,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 18:45:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:45:58,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 18:45:58,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:58,297 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:45:58,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:58,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:45:58,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:58,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:58,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:45:58,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 18:45:58,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:45:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:58,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:45:58,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:58,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:45:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:45:58,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:58,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:45:58,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:45:58,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:45:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:58,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:45:58,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:58,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:58,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:58,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:58,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:45:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:58,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 18:45:58,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:58,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:45:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:58,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:45:58,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:58,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:58,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:45:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:58,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:45:58,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:58,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:45:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:58,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:45:58,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:58,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:58,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:58,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:45:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:58,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:58,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:58,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:45:58,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:58,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:58,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:58,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:58,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:59,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:45:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:59,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:59,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:59,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:45:59,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:59,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:59,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:45:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:45:59,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:45:59,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337019375] [2020-10-12 18:45:59,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:45:59,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-10-12 18:45:59,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323705796] [2020-10-12 18:45:59,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-12 18:45:59,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:59,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-12 18:45:59,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2020-10-12 18:45:59,117 INFO L87 Difference]: Start difference. First operand 1127 states and 1607 transitions. Second operand 24 states. [2020-10-12 18:45:59,329 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:45:59,500 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:45:59,658 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-12 18:45:59,832 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:46:00,010 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:46:00,201 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:46:00,939 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:46:01,718 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:46:02,788 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:46:04,303 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:46:06,301 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:46:08,581 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:46:13,322 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 18:46:16,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:46:16,733 INFO L93 Difference]: Finished difference Result 3013 states and 4358 transitions. [2020-10-12 18:46:16,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-10-12 18:46:16,735 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 115 [2020-10-12 18:46:16,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:46:16,751 INFO L225 Difference]: With dead ends: 3013 [2020-10-12 18:46:16,752 INFO L226 Difference]: Without dead ends: 1944 [2020-10-12 18:46:16,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7093 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=3228, Invalid=15954, Unknown=0, NotChecked=0, Total=19182 [2020-10-12 18:46:16,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2020-10-12 18:46:16,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1922. [2020-10-12 18:46:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1922 states. [2020-10-12 18:46:16,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2776 transitions. [2020-10-12 18:46:16,913 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2776 transitions. Word has length 115 [2020-10-12 18:46:16,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:46:16,913 INFO L479 AbstractCegarLoop]: Abstraction has 1922 states and 2776 transitions. [2020-10-12 18:46:16,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-12 18:46:16,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2776 transitions. [2020-10-12 18:46:16,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:46:16,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:46:16,917 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] [2020-10-12 18:46:16,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:46:16,918 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:46:16,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:46:16,918 INFO L82 PathProgramCache]: Analyzing trace with hash -246070264, now seen corresponding path program 1 times [2020-10-12 18:46:16,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:46:16,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963975332] [2020-10-12 18:46:16,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:46:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:16,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:17,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:17,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:17,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:46:19,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:46:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2576 [2020-10-12 18:46:19,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:46:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 18:46:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:46:19,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:19,713 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:46:19,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:19,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:19,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:46:19,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:46:19,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:19,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:46:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:19,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:46:19,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:19,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:46:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:19,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:19,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:19,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:46:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:19,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:19,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:19,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:46:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:19,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:19,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:19,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:46:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:19,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:19,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:19,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:46:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:19,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:19,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:19,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:46:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:19,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:19,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:19,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:19,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:46:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:19,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:19,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:19,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:46:19,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:46:19,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:46:19,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:20,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:46:20,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963975332] [2020-10-12 18:46:20,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:46:20,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:46:20,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175230546] [2020-10-12 18:46:20,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:46:20,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:46:20,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:46:20,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:46:20,033 INFO L87 Difference]: Start difference. First operand 1922 states and 2776 transitions. Second operand 15 states. [2020-10-12 18:46:21,649 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:46:21,824 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:46:22,024 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:46:22,180 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:46:22,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:46:22,509 INFO L93 Difference]: Finished difference Result 2345 states and 3534 transitions. [2020-10-12 18:46:22,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:46:22,510 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 115 [2020-10-12 18:46:22,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:46:22,525 INFO L225 Difference]: With dead ends: 2345 [2020-10-12 18:46:22,526 INFO L226 Difference]: Without dead ends: 2343 [2020-10-12 18:46:22,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-12 18:46:22,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2020-10-12 18:46:22,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 2102. [2020-10-12 18:46:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2020-10-12 18:46:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2965 transitions. [2020-10-12 18:46:22,724 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2965 transitions. Word has length 115 [2020-10-12 18:46:22,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:46:22,726 INFO L479 AbstractCegarLoop]: Abstraction has 2102 states and 2965 transitions. [2020-10-12 18:46:22,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:46:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2965 transitions. [2020-10-12 18:46:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:46:22,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:46:22,733 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] [2020-10-12 18:46:22,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:46:22,733 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:46:22,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:46:22,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1341308660, now seen corresponding path program 1 times [2020-10-12 18:46:22,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:46:22,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601497267] [2020-10-12 18:46:22,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:46:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:22,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:22,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:22,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:23,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:24,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:46:27,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:46:27,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:46:27,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:46:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:46:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 18:46:27,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,959 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:46:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:27,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:27,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:27,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:46:28,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 18:46:28,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:46:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:46:28,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:46:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:28,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:28,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:28,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:46:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:46:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:28,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:28,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:46:28,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:28,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:46:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:28,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:28,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:46:28,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:46:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:28,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:28,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:46:28,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:28,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:28,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:28,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:46:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:28,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:28,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:46:28,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:28,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:46:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:28,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:28,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:46:28,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:28,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:28,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:46:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:28,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:46:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:46:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:46:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:46:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:28,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:28,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:28,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:46:28,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:28,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:46:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:46:28,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:46:28,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601497267] [2020-10-12 18:46:28,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:46:28,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:46:28,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503335959] [2020-10-12 18:46:28,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:46:28,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:46:28,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:46:28,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:46:28,632 INFO L87 Difference]: Start difference. First operand 2102 states and 2965 transitions. Second operand 22 states. [2020-10-12 18:46:29,007 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-12 18:46:29,182 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:46:29,324 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:46:29,481 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:46:29,674 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:46:30,037 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 150 [2020-10-12 18:46:30,420 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-12 18:46:30,914 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-12 18:46:31,087 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:46:31,404 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:46:31,884 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-12 18:46:32,221 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 149 [2020-10-12 18:46:32,462 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 18:46:33,244 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-12 18:46:33,417 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:46:33,804 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 18:46:33,963 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:46:34,099 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-12 18:46:34,253 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:46:35,332 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-12 18:46:35,519 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:46:36,051 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 18:46:37,386 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-12 18:46:37,584 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:46:37,865 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-12 18:46:38,259 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:46:39,430 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 152 [2020-10-12 18:46:39,794 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 151 [2020-10-12 18:46:40,139 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-12 18:46:40,468 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 149 [2020-10-12 18:46:40,800 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-12 18:46:40,970 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:46:42,480 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 18:46:42,682 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-12 18:46:42,881 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 18:46:43,071 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:46:43,469 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:46:43,673 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-12 18:46:44,592 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-12 18:46:44,795 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 18:46:44,998 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-12 18:46:45,229 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 18:46:45,563 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-12 18:46:45,779 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:46:46,658 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-12 18:46:46,873 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 18:46:47,081 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-12 18:46:47,420 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-12 18:46:47,636 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:46:47,977 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 18:46:48,697 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-12 18:46:48,927 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 18:46:49,177 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-12 18:46:49,515 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-12 18:46:49,736 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:46:50,405 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-12 18:46:50,618 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 18:46:50,825 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-12 18:46:51,118 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-12 18:46:51,333 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:46:51,973 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 18:46:52,179 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-12 18:46:52,374 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 18:46:52,648 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:46:52,854 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-12 18:46:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:46:53,903 INFO L93 Difference]: Finished difference Result 5036 states and 7230 transitions. [2020-10-12 18:46:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-10-12 18:46:53,904 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-12 18:46:53,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:46:53,920 INFO L225 Difference]: With dead ends: 5036 [2020-10-12 18:46:53,920 INFO L226 Difference]: Without dead ends: 3101 [2020-10-12 18:46:53,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7152 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=3299, Invalid=16723, Unknown=0, NotChecked=0, Total=20022 [2020-10-12 18:46:53,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2020-10-12 18:46:54,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 2836. [2020-10-12 18:46:54,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2836 states. [2020-10-12 18:46:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4054 transitions. [2020-10-12 18:46:54,230 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4054 transitions. Word has length 115 [2020-10-12 18:46:54,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:46:54,231 INFO L479 AbstractCegarLoop]: Abstraction has 2836 states and 4054 transitions. [2020-10-12 18:46:54,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:46:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4054 transitions. [2020-10-12 18:46:54,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:46:54,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:46:54,235 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] [2020-10-12 18:46:54,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:46:54,235 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:46:54,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:46:54,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1430117284, now seen corresponding path program 1 times [2020-10-12 18:46:54,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:46:54,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50650253] [2020-10-12 18:46:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:46:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:55,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:46:59,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:46:59,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:46:59,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:46:59,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:46:59,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 18:46:59,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:59,526 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:46:59,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:59,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:46:59,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:46:59,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 18:46:59,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:46:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:46:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:46:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:59,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:59,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:59,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:59,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:46:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:46:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:46:59,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:46:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:46:59,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:59,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:59,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:46:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:00,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:00,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:00,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:00,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:47:00,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:00,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:47:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:00,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:00,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:00,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:00,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:00,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:47:00,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:00,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:00,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:00,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:00,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:00,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:47:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:00,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:00,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:00,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:47:00,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:00,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:47:00,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:47:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:47:00,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:00,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:47:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:00,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:00,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:00,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:00,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:00,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:47:00,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:00,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:00,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:47:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:00,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:00,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:00,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:47:00,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:00,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:47:00,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:47:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:47:00,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:47:00,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50650253] [2020-10-12 18:47:00,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:47:00,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:47:00,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791574686] [2020-10-12 18:47:00,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:47:00,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:47:00,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:47:00,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:47:00,466 INFO L87 Difference]: Start difference. First operand 2836 states and 4054 transitions. Second operand 22 states. [2020-10-12 18:47:00,886 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-12 18:47:01,081 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:47:01,295 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:47:01,497 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:47:01,855 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 148 [2020-10-12 18:47:02,231 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 149 [2020-10-12 18:47:02,598 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-12 18:47:02,975 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-12 18:47:03,132 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:47:03,762 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-12 18:47:03,932 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:47:04,866 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-12 18:47:05,056 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:47:06,253 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 18:47:06,435 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:47:07,322 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-12 18:47:07,986 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:47:08,918 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:47:09,108 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:47:09,289 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:47:09,464 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:47:09,939 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-12 18:47:11,673 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:47:11,889 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 18:47:13,604 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 18:47:13,826 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-12 18:47:15,438 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 18:47:15,658 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-12 18:47:16,985 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:47:17,216 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-12 18:47:18,502 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:47:18,711 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:47:19,764 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 18:47:20,002 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-12 18:47:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:20,613 INFO L93 Difference]: Finished difference Result 5989 states and 8617 transitions. [2020-10-12 18:47:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2020-10-12 18:47:20,614 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-12 18:47:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:20,630 INFO L225 Difference]: With dead ends: 5989 [2020-10-12 18:47:20,631 INFO L226 Difference]: Without dead ends: 3495 [2020-10-12 18:47:20,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5879 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=2927, Invalid=14103, Unknown=0, NotChecked=0, Total=17030 [2020-10-12 18:47:20,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3495 states. [2020-10-12 18:47:20,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3495 to 2879. [2020-10-12 18:47:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2879 states. [2020-10-12 18:47:20,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 4102 transitions. [2020-10-12 18:47:20,922 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 4102 transitions. Word has length 115 [2020-10-12 18:47:20,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:47:20,923 INFO L479 AbstractCegarLoop]: Abstraction has 2879 states and 4102 transitions. [2020-10-12 18:47:20,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:47:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 4102 transitions. [2020-10-12 18:47:20,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:47:20,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:47:20,930 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] [2020-10-12 18:47:20,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:47:20,931 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:47:20,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:47:20,931 INFO L82 PathProgramCache]: Analyzing trace with hash -554106836, now seen corresponding path program 1 times [2020-10-12 18:47:20,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:47:20,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205949041] [2020-10-12 18:47:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:47:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:20,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:21,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:21,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:21,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:22,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:25,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:25,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:47:25,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:47:25,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4943 [2020-10-12 18:47:25,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:25,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:47:25,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:47:25,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 18:47:25,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,182 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:47:26,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:47:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:47:26,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:47:26,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:26,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:26,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:47:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:47:26,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 18:47:26,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:47:26,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:26,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:47:26,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:47:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:47:26,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:47:26,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:26,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:26,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:47:26,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:26,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:47:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:26,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:47:26,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:47:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:26,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:47:26,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:26,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:26,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:26,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:47:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:26,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:47:26,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:26,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:47:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:47:26,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:47:26,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:47:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:47:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:47:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:26,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:47:26,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:26,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:47:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:26,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:47:26,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:26,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:26,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:26,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:47:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:26,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:47:26,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:47:26,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205949041] [2020-10-12 18:47:26,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:47:26,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:47:26,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189759016] [2020-10-12 18:47:26,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:47:26,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:47:26,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:47:26,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:47:26,826 INFO L87 Difference]: Start difference. First operand 2879 states and 4102 transitions. Second operand 22 states. [2020-10-12 18:47:27,224 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:47:27,412 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:47:27,587 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:47:27,772 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:47:27,958 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:47:28,146 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:47:28,503 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:47:28,898 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:47:29,052 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:47:29,711 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:47:29,875 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:47:30,796 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-12 18:47:30,964 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:47:31,692 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-12 18:47:33,124 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:47:33,483 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-12 18:47:33,643 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-12 18:47:34,105 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-12 18:47:34,463 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-12 18:47:35,602 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:47:35,874 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:47:36,145 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:47:36,394 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:47:36,781 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:47:37,066 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:47:43,139 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-12 18:47:49,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:49,506 INFO L93 Difference]: Finished difference Result 5733 states and 8366 transitions. [2020-10-12 18:47:49,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2020-10-12 18:47:49,507 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-12 18:47:49,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:49,527 INFO L225 Difference]: With dead ends: 5733 [2020-10-12 18:47:49,527 INFO L226 Difference]: Without dead ends: 3882 [2020-10-12 18:47:49,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6917 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=3459, Invalid=16001, Unknown=0, NotChecked=0, Total=19460 [2020-10-12 18:47:49,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2020-10-12 18:47:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3454. [2020-10-12 18:47:49,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3454 states. [2020-10-12 18:47:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 4919 transitions. [2020-10-12 18:47:49,881 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 4919 transitions. Word has length 115 [2020-10-12 18:47:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:47:49,882 INFO L479 AbstractCegarLoop]: Abstraction has 3454 states and 4919 transitions. [2020-10-12 18:47:49,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:47:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 4919 transitions. [2020-10-12 18:47:49,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:47:49,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:47:49,885 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] [2020-10-12 18:47:49,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:47:49,886 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:47:49,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:47:49,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1521459502, now seen corresponding path program 1 times [2020-10-12 18:47:49,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:47:49,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403300779] [2020-10-12 18:47:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:47:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:49,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:49,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:47:52,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:47:52,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2506 [2020-10-12 18:47:52,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:47:52,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:47:52,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 18:47:52,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,600 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:47:52,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:47:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:47:52,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:47:52,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:52,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:47:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:47:52,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 18:47:52,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:47:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:47:52,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:47:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:47:52,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:47:52,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:47:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:47:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:52,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:47:52,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:52,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:47:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:52,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:47:52,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:52,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:47:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:47:52,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:47:52,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:47:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:47:52,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:47:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:52,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:47:52,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:52,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:52,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:52,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:47:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:52,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:47:52,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:53,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:47:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:53,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:53,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:53,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:53,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:53,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:47:53,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:53,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:53,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:53,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:53,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:53,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:47:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:53,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:53,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:53,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:47:53,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:53,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:47:53,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:47:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:47:53,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:53,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:47:53,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403300779] [2020-10-12 18:47:53,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:47:53,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:47:53,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136200461] [2020-10-12 18:47:53,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:47:53,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:47:53,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:47:53,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:47:53,139 INFO L87 Difference]: Start difference. First operand 3454 states and 4919 transitions. Second operand 22 states. [2020-10-12 18:47:53,577 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:47:53,774 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:47:53,969 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-12 18:47:54,166 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:47:54,406 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:47:54,613 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:47:55,006 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:47:55,392 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:47:55,552 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:47:56,257 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-12 18:47:56,440 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:47:57,089 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:47:58,065 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:47:59,257 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:48:00,853 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:48:01,042 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:48:01,218 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:48:01,407 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:48:01,594 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:48:01,764 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:48:02,038 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:48:02,235 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:48:02,440 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:48:06,365 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-12 18:48:12,956 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-12 18:48:16,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:16,514 INFO L93 Difference]: Finished difference Result 6437 states and 9241 transitions. [2020-10-12 18:48:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2020-10-12 18:48:16,515 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-12 18:48:16,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:16,537 INFO L225 Difference]: With dead ends: 6437 [2020-10-12 18:48:16,537 INFO L226 Difference]: Without dead ends: 5068 [2020-10-12 18:48:16,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8344 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=3684, Invalid=19268, Unknown=0, NotChecked=0, Total=22952 [2020-10-12 18:48:16,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5068 states. [2020-10-12 18:48:16,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5068 to 4713. [2020-10-12 18:48:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4713 states. [2020-10-12 18:48:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4713 states to 4713 states and 6747 transitions. [2020-10-12 18:48:16,988 INFO L78 Accepts]: Start accepts. Automaton has 4713 states and 6747 transitions. Word has length 115 [2020-10-12 18:48:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:16,989 INFO L479 AbstractCegarLoop]: Abstraction has 4713 states and 6747 transitions. [2020-10-12 18:48:16,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:48:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4713 states and 6747 transitions. [2020-10-12 18:48:16,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:48:16,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:16,993 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] [2020-10-12 18:48:16,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:48:16,993 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:16,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:16,994 INFO L82 PathProgramCache]: Analyzing trace with hash -964612180, now seen corresponding path program 1 times [2020-10-12 18:48:16,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:16,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872063890] [2020-10-12 18:48:16,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:17,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:17,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:17,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:17,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:18,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:21,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:21,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:48:21,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:48:21,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4546 [2020-10-12 18:48:21,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:48:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:48:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 18:48:21,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:21,752 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:48:21,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:21,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:21,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:21,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:21,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:21,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:21,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:21,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:21,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:21,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:21,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:21,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:48:21,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:21,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:48:21,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:21,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:48:21,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:21,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:48:21,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:21,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:48:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:21,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:21,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:21,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:21,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:21,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:48:21,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:48:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:21,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:21,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:21,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:21,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:21,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:21,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:21,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:21,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:48:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:21,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:21,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:21,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:48:21,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:21,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:48:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:48:21,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:21,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:48:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:21,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:21,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:21,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:21,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:21,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:21,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:21,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:22,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:48:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:22,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:22,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:22,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:22,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:22,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:22,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:22,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:22,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:22,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:22,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:22,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:48:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:22,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:22,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:22,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:22,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:22,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:22,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:22,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:22,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:22,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:48:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:22,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:22,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:22,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:22,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:22,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:22,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:22,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:22,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:22,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:22,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:22,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:48:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:22,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:22,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:22,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:22,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:22,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:48:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:48:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:48:22,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872063890] [2020-10-12 18:48:22,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:22,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:48:22,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626194515] [2020-10-12 18:48:22,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:48:22,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:22,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:48:22,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:48:22,320 INFO L87 Difference]: Start difference. First operand 4713 states and 6747 transitions. Second operand 22 states. [2020-10-12 18:48:22,749 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 147 [2020-10-12 18:48:22,930 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:48:23,101 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:48:23,274 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:48:23,458 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:48:23,647 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:48:24,010 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-12 18:48:24,406 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-12 18:48:24,565 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:48:24,973 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-12 18:48:25,663 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:48:26,663 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:48:27,949 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-12 18:48:28,204 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 18:48:28,341 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-12 18:48:29,938 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:48:30,232 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:48:30,435 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:48:30,631 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:48:30,847 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:48:42,892 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 18:48:43,059 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-12 18:48:43,208 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-12 18:48:43,401 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 18:48:43,644 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-12 18:48:46,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:46,073 INFO L93 Difference]: Finished difference Result 8660 states and 13050 transitions. [2020-10-12 18:48:46,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2020-10-12 18:48:46,074 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-12 18:48:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:46,115 INFO L225 Difference]: With dead ends: 8660 [2020-10-12 18:48:46,115 INFO L226 Difference]: Without dead ends: 7752 [2020-10-12 18:48:46,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7214 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=3680, Invalid=16060, Unknown=0, NotChecked=0, Total=19740 [2020-10-12 18:48:46,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7752 states. [2020-10-12 18:48:46,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7752 to 6628. [2020-10-12 18:48:46,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6628 states. [2020-10-12 18:48:46,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6628 states to 6628 states and 9504 transitions. [2020-10-12 18:48:46,720 INFO L78 Accepts]: Start accepts. Automaton has 6628 states and 9504 transitions. Word has length 115 [2020-10-12 18:48:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:46,720 INFO L479 AbstractCegarLoop]: Abstraction has 6628 states and 9504 transitions. [2020-10-12 18:48:46,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:48:46,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6628 states and 9504 transitions. [2020-10-12 18:48:46,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:48:46,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:46,725 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] [2020-10-12 18:48:46,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:48:46,725 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:46,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:46,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1359835108, now seen corresponding path program 1 times [2020-10-12 18:48:46,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:46,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296186106] [2020-10-12 18:48:46,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:51,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:48:51,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:48:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4737 [2020-10-12 18:48:51,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:48:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:48:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 18:48:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:51,670 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:48:51,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:51,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:51,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:51,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:48:51,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:51,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:51,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:48:51,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:48:51,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:48:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:48:51,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:51,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:48:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:51,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:51,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:51,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:51,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:48:51,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:51,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:51,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:48:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:51,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:48:51,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:51,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:51,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:51,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:48:51,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:51,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:48:51,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:51,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:48:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:51,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:51,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:51,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:51,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:51,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:48:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:51,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:51,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:51,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:51,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:51,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:51,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:51,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:48:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:51,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:51,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:51,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:51,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:51,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:51,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:51,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:51,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:51,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:52,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:48:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:52,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:52,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:52,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:52,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:52,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:52,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:48:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:52,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:52,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:52,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:52,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:52,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:52,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:52,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:52,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:48:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:52,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:52,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:52,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:52,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:52,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:52,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:48:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:48:52,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:48:52,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296186106] [2020-10-12 18:48:52,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:52,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:48:52,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065460607] [2020-10-12 18:48:52,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:48:52,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:52,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:48:52,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:48:52,240 INFO L87 Difference]: Start difference. First operand 6628 states and 9504 transitions. Second operand 22 states. [2020-10-12 18:48:52,637 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 147 [2020-10-12 18:48:52,820 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:48:53,033 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:48:53,215 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-12 18:48:53,405 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:48:53,597 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:48:53,930 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-12 18:48:54,205 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:48:54,620 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:48:55,292 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-12 18:48:56,250 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-12 18:48:57,569 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-12 18:49:00,064 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:49:00,295 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:49:00,479 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:49:00,670 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 144