/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-var-start-time.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:52:38,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:52:38,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:52:38,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:52:38,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:52:38,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:52:38,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:52:38,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:52:38,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:52:38,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:52:38,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:52:38,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:52:38,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:52:38,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:52:38,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:52:38,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:52:38,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:52:38,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:52:38,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:52:38,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:52:38,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:52:38,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:52:38,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:52:38,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:52:38,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:52:38,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:52:38,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:52:38,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:52:38,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:52:38,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:52:38,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:52:38,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:52:38,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:52:38,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:52:38,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:52:38,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:52:38,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:52:38,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:52:38,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:52:38,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:52:38,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:52:38,296 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 18:52:38,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:52:38,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:52:38,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:52:38,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:52:38,336 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:52:38,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:52:38,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:52:38,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:52:38,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:52:38,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:52:38,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:52:38,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:52:38,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:52:38,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:52:38,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:52:38,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:52:38,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:52:38,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:52:38,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:52:38,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:52:38,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:52:38,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:52:38,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:52:38,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:52:38,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:52:38,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:52:38,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:52:38,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:52:38,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:52:38,342 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 18:52:38,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:52:38,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:52:38,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:52:38,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:52:38,661 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:52:38,661 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2020-10-12 18:52:38,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23045c5c2/498cb980b1f64158b07680ee25c9509d/FLAGaabacb514 [2020-10-12 18:52:39,245 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:52:39,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2020-10-12 18:52:39,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23045c5c2/498cb980b1f64158b07680ee25c9509d/FLAGaabacb514 [2020-10-12 18:52:39,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23045c5c2/498cb980b1f64158b07680ee25c9509d [2020-10-12 18:52:39,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:52:39,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:52:39,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:52:39,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:52:39,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:52:39,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:52:39" (1/1) ... [2020-10-12 18:52:39,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d7d7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:39, skipping insertion in model container [2020-10-12 18:52:39,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:52:39" (1/1) ... [2020-10-12 18:52:39,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:52:39,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:52:40,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:52:40,022 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:52:40,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:52:40,141 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:52:40,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40 WrapperNode [2020-10-12 18:52:40,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:52:40,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:52:40,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:52:40,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:52:40,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (1/1) ... [2020-10-12 18:52:40,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (1/1) ... [2020-10-12 18:52:40,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (1/1) ... [2020-10-12 18:52:40,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (1/1) ... [2020-10-12 18:52:40,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (1/1) ... [2020-10-12 18:52:40,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (1/1) ... [2020-10-12 18:52:40,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (1/1) ... [2020-10-12 18:52:40,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:52:40,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:52:40,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:52:40,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:52:40,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (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 18:52:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:52:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:52:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:52:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:52:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:52:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:52:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:52:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:52:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:52:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:52:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:52:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:52:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:52:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:52:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:52:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:52:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:52:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:52:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:52:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:52:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:52:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:52:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:52:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:52:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:52:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:52:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:52:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:52:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:52:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:52:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:52:41,018 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:52:41,019 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:52:41,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:52:41 BoogieIcfgContainer [2020-10-12 18:52:41,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:52:41,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:52:41,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:52:41,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:52:41,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:52:39" (1/3) ... [2020-10-12 18:52:41,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc289a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:52:41, skipping insertion in model container [2020-10-12 18:52:41,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:40" (2/3) ... [2020-10-12 18:52:41,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc289a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:52:41, skipping insertion in model container [2020-10-12 18:52:41,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:52:41" (3/3) ... [2020-10-12 18:52:41,033 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2020-10-12 18:52:41,043 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:52:41,051 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:52:41,064 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:52:41,086 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:52:41,087 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:52:41,087 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:52:41,087 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:52:41,087 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:52:41,087 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:52:41,088 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:52:41,088 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:52:41,109 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-10-12 18:52:41,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-12 18:52:41,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:41,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:41,122 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:41,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:41,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1611462146, now seen corresponding path program 1 times [2020-10-12 18:52:41,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:41,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827826159] [2020-10-12 18:52:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:41,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:41,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 18:52:41,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:41,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-12 18:52:41,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:52:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:52:41,974 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:52:41,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:41,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:42,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:52:42,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:42,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:42,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:42,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:42,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:52:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:42,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:42,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:52:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:52:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:42,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:52:42,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:52:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:52:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:42,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:52:42,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:42,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 18:52:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:42,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:42,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:42,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:42,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 18:52:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:42,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:42,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:42,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 18:52:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:42,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:52:42,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:42,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 18:52:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:42,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:42,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:42,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:42,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:52:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:42,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:42,239 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 18:52:42,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827826159] [2020-10-12 18:52:42,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:42,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 18:52:42,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861077900] [2020-10-12 18:52:42,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 18:52:42,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:42,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 18:52:42,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 18:52:42,266 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 8 states. [2020-10-12 18:52:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:43,539 INFO L93 Difference]: Finished difference Result 274 states and 411 transitions. [2020-10-12 18:52:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 18:52:43,541 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-12 18:52:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:43,556 INFO L225 Difference]: With dead ends: 274 [2020-10-12 18:52:43,556 INFO L226 Difference]: Without dead ends: 161 [2020-10-12 18:52:43,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:52:43,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-12 18:52:43,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 155. [2020-10-12 18:52:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-12 18:52:43,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 236 transitions. [2020-10-12 18:52:43,629 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 236 transitions. Word has length 68 [2020-10-12 18:52:43,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:43,629 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 236 transitions. [2020-10-12 18:52:43,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 18:52:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 236 transitions. [2020-10-12 18:52:43,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-12 18:52:43,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:43,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:43,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:52:43,634 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:43,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:43,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1167561472, now seen corresponding path program 1 times [2020-10-12 18:52:43,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:43,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294766892] [2020-10-12 18:52:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:43,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 18:52:44,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-12 18:52:44,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:52:44,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:52:44,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:52:44,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,557 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:52:44,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:44,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:52:44,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:44,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:44,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:52:44,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:44,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:44,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:44,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 18:52:44,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:52:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:44,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:44,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:52:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:44,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:52:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:44,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:44,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:52:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:52:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:44,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:44,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 18:52:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:44,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:44,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 18:52:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:44,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:44,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 18:52:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:44,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:44,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:44,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 18:52:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:44,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:44,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:44,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:44,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:44,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:44,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:52:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:44,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:44,892 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 18:52:44,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294766892] [2020-10-12 18:52:44,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:44,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:52:44,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906306291] [2020-10-12 18:52:44,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:52:44,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:44,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:52:44,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:52:44,897 INFO L87 Difference]: Start difference. First operand 155 states and 236 transitions. Second operand 14 states. [2020-10-12 18:52:45,121 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:52:45,270 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-12 18:52:45,483 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:52:45,641 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:52:47,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:47,276 INFO L93 Difference]: Finished difference Result 272 states and 403 transitions. [2020-10-12 18:52:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:52:47,276 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-12 18:52:47,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:47,279 INFO L225 Difference]: With dead ends: 272 [2020-10-12 18:52:47,279 INFO L226 Difference]: Without dead ends: 161 [2020-10-12 18:52:47,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-12 18:52:47,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-12 18:52:47,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 155. [2020-10-12 18:52:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-12 18:52:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 204 transitions. [2020-10-12 18:52:47,302 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 204 transitions. Word has length 68 [2020-10-12 18:52:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:47,303 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 204 transitions. [2020-10-12 18:52:47,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:52:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 204 transitions. [2020-10-12 18:52:47,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-12 18:52:47,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:47,305 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] [2020-10-12 18:52:47,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:52:47,306 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:47,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:47,306 INFO L82 PathProgramCache]: Analyzing trace with hash 827322511, now seen corresponding path program 1 times [2020-10-12 18:52:47,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:47,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667089078] [2020-10-12 18:52:47,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:49,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:52,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:52,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 18:52:52,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:52:52,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:52:52,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:52,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:52:52,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:52:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-12 18:52:52,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:52,542 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:52:52,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:52,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:52,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:52,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:52,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:52,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:52,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:52,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:52,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:52:52,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:52,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 18:52:52,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:52:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 18:52:52,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:52,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:52:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:52,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:52,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:52,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:52,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:52,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:52,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:52:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:52,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:52,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:52,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:52,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:52:52,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:52:52,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:52,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:52:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:52,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:52,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:52,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:52,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:52:52,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:52,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:52,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:52:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:52,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:52,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:52,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:52,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:52,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:52:52,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:52,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:52:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:52,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:52,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:52,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:52,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 18:52:52,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:53,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:52:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:53,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:53,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:53,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:53,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:53,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:52:53,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:53,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:53,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:52:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:53,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:53,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:53,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:53,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:53,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:52:53,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:53,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:52:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:52:53,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:53,175 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 18:52:53,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667089078] [2020-10-12 18:52:53,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:53,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-12 18:52:53,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055664996] [2020-10-12 18:52:53,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:52:53,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:53,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:52:53,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:52:53,179 INFO L87 Difference]: Start difference. First operand 155 states and 204 transitions. Second operand 19 states. [2020-10-12 18:52:53,385 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-12 18:52:53,544 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:52:53,683 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:52:53,828 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-12 18:52:53,977 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:52:58,168 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-12 18:52:58,322 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:52:58,491 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:52:58,658 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-12 18:52:58,813 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:53:08,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:08,780 INFO L93 Difference]: Finished difference Result 1520 states and 2276 transitions. [2020-10-12 18:53:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2020-10-12 18:53:08,781 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 99 [2020-10-12 18:53:08,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:08,798 INFO L225 Difference]: With dead ends: 1520 [2020-10-12 18:53:08,798 INFO L226 Difference]: Without dead ends: 1415 [2020-10-12 18:53:08,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4823 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=2546, Invalid=11026, Unknown=0, NotChecked=0, Total=13572 [2020-10-12 18:53:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2020-10-12 18:53:08,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1229. [2020-10-12 18:53:08,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1229 states. [2020-10-12 18:53:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1803 transitions. [2020-10-12 18:53:08,974 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1803 transitions. Word has length 99 [2020-10-12 18:53:08,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:08,975 INFO L479 AbstractCegarLoop]: Abstraction has 1229 states and 1803 transitions. [2020-10-12 18:53:08,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:53:08,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1803 transitions. [2020-10-12 18:53:08,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-12 18:53:08,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:08,981 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] [2020-10-12 18:53:08,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:53:08,982 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:08,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash -2076693969, now seen corresponding path program 1 times [2020-10-12 18:53:08,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:08,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829373810] [2020-10-12 18:53:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:09,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:09,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:09,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:09,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:10,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 18:53:14,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:53:14,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:53:14,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:53:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 18:53:14,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:53:14,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,245 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:53:14,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:14,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:53:14,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:14,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:53:14,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:53:14,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:14,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:14,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:53:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:14,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:14,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:14,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:14,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:14,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:14,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:14,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:53:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:14,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:14,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:14,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:53:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:14,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:14,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:53:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:14,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:14,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:14,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:53:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:14,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:14,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:53:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:14,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:14,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:14,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:14,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:14,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:14,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:14,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:14,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:53:14,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:14,494 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 18:53:14,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829373810] [2020-10-12 18:53:14,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:14,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:53:14,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090937221] [2020-10-12 18:53:14,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:53:14,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:14,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:53:14,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:53:14,497 INFO L87 Difference]: Start difference. First operand 1229 states and 1803 transitions. Second operand 14 states. [2020-10-12 18:53:16,009 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:53:16,161 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-12 18:53:16,346 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:53:16,504 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:53:16,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:16,687 INFO L93 Difference]: Finished difference Result 1416 states and 2072 transitions. [2020-10-12 18:53:16,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:53:16,689 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 100 [2020-10-12 18:53:16,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:16,702 INFO L225 Difference]: With dead ends: 1416 [2020-10-12 18:53:16,702 INFO L226 Difference]: Without dead ends: 1414 [2020-10-12 18:53:16,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-12 18:53:16,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2020-10-12 18:53:16,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1283. [2020-10-12 18:53:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2020-10-12 18:53:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1857 transitions. [2020-10-12 18:53:16,806 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1857 transitions. Word has length 100 [2020-10-12 18:53:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:16,807 INFO L479 AbstractCegarLoop]: Abstraction has 1283 states and 1857 transitions. [2020-10-12 18:53:16,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:53:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1857 transitions. [2020-10-12 18:53:16,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-12 18:53:16,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:16,811 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] [2020-10-12 18:53:16,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:53:16,812 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:16,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:16,812 INFO L82 PathProgramCache]: Analyzing trace with hash -326906265, now seen corresponding path program 1 times [2020-10-12 18:53:16,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:16,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064528600] [2020-10-12 18:53:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:16,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:16,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:17,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:17,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:21,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:21,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 18:53:21,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:53:21,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:53:21,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-12 18:53:21,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:53:21,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,035 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:53:22,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:22,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:53:22,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:22,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:22,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:22,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:53:22,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:53:22,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:53:22,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:22,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:53:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:22,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:53:22,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:22,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:22,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:53:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:53:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:22,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:53:22,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:22,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:22,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:22,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:53:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:22,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:53:22,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:53:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:22,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:22,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:22,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:22,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:22,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:53:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:22,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:22,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:22,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:22,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:22,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:53:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:22,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:22,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:22,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:22,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:22,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:22,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:53:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:22,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:22,361 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 18:53:22,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064528600] [2020-10-12 18:53:22,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:22,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:53:22,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060267573] [2020-10-12 18:53:22,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:53:22,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:22,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:53:22,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:53:22,364 INFO L87 Difference]: Start difference. First operand 1283 states and 1857 transitions. Second operand 11 states. [2020-10-12 18:53:22,504 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:53:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:24,542 INFO L93 Difference]: Finished difference Result 3729 states and 5388 transitions. [2020-10-12 18:53:24,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 18:53:24,543 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-12 18:53:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:24,558 INFO L225 Difference]: With dead ends: 3729 [2020-10-12 18:53:24,558 INFO L226 Difference]: Without dead ends: 2496 [2020-10-12 18:53:24,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-12 18:53:24,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-10-12 18:53:24,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2373. [2020-10-12 18:53:24,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2373 states. [2020-10-12 18:53:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 3426 transitions. [2020-10-12 18:53:24,714 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 3426 transitions. Word has length 101 [2020-10-12 18:53:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:24,714 INFO L479 AbstractCegarLoop]: Abstraction has 2373 states and 3426 transitions. [2020-10-12 18:53:24,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:53:24,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 3426 transitions. [2020-10-12 18:53:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-12 18:53:24,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:24,716 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] [2020-10-12 18:53:24,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:53:24,717 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:24,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1503077016, now seen corresponding path program 1 times [2020-10-12 18:53:24,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:24,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281437932] [2020-10-12 18:53:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:24,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:24,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:25,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:29,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:29,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:53:29,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:53:29,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:53:29,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:53:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 18:53:29,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:29,940 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:53:29,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:29,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:29,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:29,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:29,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:53:29,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:29,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:29,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:29,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:29,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:29,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:53:30,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:53:30,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:53:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:30,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:53:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:30,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:30,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:30,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:30,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:30,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:53:30,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:30,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:30,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:53:30,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:30,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:53:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:30,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:53:30,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:30,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:30,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:30,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:53:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:30,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:30,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:53:30,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:30,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:53:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:30,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:53:30,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:30,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:53:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:30,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:53:30,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:30,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:30,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:30,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:30,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:53:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:30,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:30,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:53:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:30,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:30,334 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 18:53:30,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281437932] [2020-10-12 18:53:30,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:30,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:53:30,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939980980] [2020-10-12 18:53:30,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:53:30,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:30,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:53:30,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:53:30,339 INFO L87 Difference]: Start difference. First operand 2373 states and 3426 transitions. Second operand 11 states. [2020-10-12 18:53:30,522 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:53:32,298 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:53:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:33,770 INFO L93 Difference]: Finished difference Result 8802 states and 12759 transitions. [2020-10-12 18:53:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 18:53:33,771 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-12 18:53:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:33,808 INFO L225 Difference]: With dead ends: 8802 [2020-10-12 18:53:33,808 INFO L226 Difference]: Without dead ends: 6479 [2020-10-12 18:53:33,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-10-12 18:53:33,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6479 states. [2020-10-12 18:53:34,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6479 to 6112. [2020-10-12 18:53:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6112 states. [2020-10-12 18:53:34,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 8890 transitions. [2020-10-12 18:53:34,267 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 8890 transitions. Word has length 102 [2020-10-12 18:53:34,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:34,269 INFO L479 AbstractCegarLoop]: Abstraction has 6112 states and 8890 transitions. [2020-10-12 18:53:34,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:53:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 8890 transitions. [2020-10-12 18:53:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 18:53:34,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:34,273 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] [2020-10-12 18:53:34,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:53:34,273 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:34,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:34,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1622443962, now seen corresponding path program 1 times [2020-10-12 18:53:34,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:34,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144037247] [2020-10-12 18:53:34,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:34,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:34,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:38,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 18:53:39,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:53:39,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:53:39,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:53:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-12 18:53:39,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:39,527 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:53:39,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:39,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:39,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:39,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:39,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:39,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:39,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:53:39,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 18:53:39,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:53:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:39,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:53:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:39,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:39,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:39,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:39,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:53:39,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:53:39,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:39,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:53:39,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:39,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:53:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:39,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:53:39,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:39,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:53:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:39,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:53:39,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:39,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:53:39,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:39,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:53:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:39,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:53:39,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:39,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:39,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:39,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:39,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:53:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:39,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:39,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:39,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:39,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:53:39,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:39,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:53:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:39,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:39,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:39,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:39,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:39,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:39,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:53:39,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:39,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:39,882 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 18:53:39,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144037247] [2020-10-12 18:53:39,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:39,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:53:39,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965491776] [2020-10-12 18:53:39,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:53:39,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:39,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:53:39,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:53:39,884 INFO L87 Difference]: Start difference. First operand 6112 states and 8890 transitions. Second operand 13 states. [2020-10-12 18:53:40,055 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:53:40,750 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:53:43,520 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:53:45,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:45,110 INFO L93 Difference]: Finished difference Result 13347 states and 19391 transitions. [2020-10-12 18:53:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 18:53:45,111 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 103 [2020-10-12 18:53:45,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:45,162 INFO L225 Difference]: With dead ends: 13347 [2020-10-12 18:53:45,162 INFO L226 Difference]: Without dead ends: 8963 [2020-10-12 18:53:45,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=315, Invalid=1167, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 18:53:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8963 states. [2020-10-12 18:53:45,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8963 to 8513. [2020-10-12 18:53:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8513 states. [2020-10-12 18:53:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8513 states to 8513 states and 12427 transitions. [2020-10-12 18:53:45,661 INFO L78 Accepts]: Start accepts. Automaton has 8513 states and 12427 transitions. Word has length 103 [2020-10-12 18:53:45,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:45,661 INFO L479 AbstractCegarLoop]: Abstraction has 8513 states and 12427 transitions. [2020-10-12 18:53:45,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:53:45,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8513 states and 12427 transitions. [2020-10-12 18:53:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 18:53:45,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:45,665 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] [2020-10-12 18:53:45,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:53:45,665 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:45,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1655353161, now seen corresponding path program 1 times [2020-10-12 18:53:45,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:45,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697845484] [2020-10-12 18:53:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:45,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:46,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:48,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 18:53:50,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:53:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:53:50,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:53:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:53:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 18:53:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:50,906 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:53:50,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:50,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:50,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:50,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:50,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:50,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:50,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:50,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:53:50,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:50,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:53:50,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:50,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:50,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 18:53:50,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:51,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:53:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:51,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:51,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:51,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:51,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:51,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:51,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:51,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:51,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:51,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:51,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:51,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:51,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:51,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:51,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:51,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:51,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:53:51,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:53:51,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:51,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:53:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:51,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:51,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:51,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:51,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:53:51,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:53:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:51,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:51,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:51,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:53:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:51,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:51,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:51,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:51,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:51,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:53:51,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:53:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:51,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:53:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:51,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:51,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:51,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:51,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:51,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:53:51,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:51,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:51,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:51,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:51,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:51,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:53:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:51,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:51,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:51,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:51,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:51,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:53:51,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:51,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:51,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:53:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:51,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:51,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:51,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:53:51,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:51,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:51,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:53:51,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:53:51,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:51,374 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 18:53:51,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697845484] [2020-10-12 18:53:51,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:51,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-12 18:53:51,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648766583] [2020-10-12 18:53:51,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:53:51,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:51,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:53:51,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:53:51,379 INFO L87 Difference]: Start difference. First operand 8513 states and 12427 transitions. Second operand 19 states. [2020-10-12 18:53:51,746 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 140 [2020-10-12 18:53:51,989 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:53:52,154 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:53:52,318 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-12 18:53:52,488 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:53:52,757 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:53:53,037 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-12 18:53:53,221 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:53:53,611 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-12 18:53:53,909 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-12 18:53:54,411 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-12 18:53:55,389 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:53:55,559 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-12 18:53:55,715 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-12 18:53:59,267 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-12 18:54:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:03,592 INFO L93 Difference]: Finished difference Result 19661 states and 28637 transitions. [2020-10-12 18:54:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-10-12 18:54:03,593 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2020-10-12 18:54:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:03,698 INFO L225 Difference]: With dead ends: 19661 [2020-10-12 18:54:03,698 INFO L226 Difference]: Without dead ends: 15150 [2020-10-12 18:54:03,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3166 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1832, Invalid=7480, Unknown=0, NotChecked=0, Total=9312 [2020-10-12 18:54:03,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15150 states. [2020-10-12 18:54:04,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15150 to 12609. [2020-10-12 18:54:04,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12609 states. [2020-10-12 18:54:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12609 states to 12609 states and 18331 transitions. [2020-10-12 18:54:04,462 INFO L78 Accepts]: Start accepts. Automaton has 12609 states and 18331 transitions. Word has length 103 [2020-10-12 18:54:04,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:04,463 INFO L479 AbstractCegarLoop]: Abstraction has 12609 states and 18331 transitions. [2020-10-12 18:54:04,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:54:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 12609 states and 18331 transitions. [2020-10-12 18:54:04,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 18:54:04,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:04,465 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] [2020-10-12 18:54:04,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:54:04,466 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:04,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:04,466 INFO L82 PathProgramCache]: Analyzing trace with hash -561446701, now seen corresponding path program 1 times [2020-10-12 18:54:04,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:04,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381339595] [2020-10-12 18:54:04,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:05,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:08,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 18:54:09,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:54:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:54:09,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:54:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:54:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 18:54:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,656 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:54:09,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:09,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:09,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:09,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:09,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:09,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:54:09,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:54:09,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 18:54:09,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:54:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:09,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:09,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:09,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:09,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:09,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:54:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:09,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:09,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:54:09,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:54:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:09,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:54:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:09,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:09,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:54:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:54:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:09,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:09,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:54:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:09,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:54:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:09,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:54:09,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:09,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:09,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:54:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:09,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:09,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:09,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:09,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:09,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:10,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:54:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:54:10,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:10,064 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 18:54:10,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381339595] [2020-10-12 18:54:10,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:10,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-12 18:54:10,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052721608] [2020-10-12 18:54:10,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:54:10,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:10,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:54:10,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:54:10,066 INFO L87 Difference]: Start difference. First operand 12609 states and 18331 transitions. Second operand 19 states. [2020-10-12 18:54:10,407 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 140 [2020-10-12 18:54:10,582 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:54:10,739 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:54:10,961 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-12 18:54:11,133 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-12 18:54:11,398 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:54:11,701 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-12 18:54:11,858 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:54:12,122 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-12 18:54:12,684 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 144 [2020-10-12 18:54:12,865 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-12 18:54:13,123 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-12 18:54:13,323 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-12 18:54:13,606 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 18:54:13,929 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-12 18:54:14,453 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 18:54:14,754 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2020-10-12 18:54:15,029 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-10-12 18:54:15,404 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-12 18:54:15,943 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-10-12 18:54:16,605 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-12 18:54:16,906 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 18:54:17,447 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-12 18:54:17,679 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-12 18:54:18,155 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-12 18:54:18,402 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-10-12 18:54:18,762 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-12 18:54:19,337 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 143 [2020-10-12 18:54:19,571 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-10-12 18:54:19,853 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-10-12 18:54:20,425 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-12 18:54:20,706 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-12 18:54:21,155 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-10-12 18:54:21,943 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-12 18:54:22,367 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-10-12 18:54:22,855 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-10-12 18:54:23,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:23,444 INFO L93 Difference]: Finished difference Result 22533 states and 32417 transitions. [2020-10-12 18:54:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-12 18:54:23,446 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2020-10-12 18:54:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:23,538 INFO L225 Difference]: With dead ends: 22533 [2020-10-12 18:54:23,538 INFO L226 Difference]: Without dead ends: 14784 [2020-10-12 18:54:23,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1601 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=1120, Invalid=4430, Unknown=0, NotChecked=0, Total=5550 [2020-10-12 18:54:23,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14784 states. [2020-10-12 18:54:24,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14784 to 14045. [2020-10-12 18:54:24,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14045 states. [2020-10-12 18:54:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14045 states to 14045 states and 20424 transitions. [2020-10-12 18:54:24,654 INFO L78 Accepts]: Start accepts. Automaton has 14045 states and 20424 transitions. Word has length 103 [2020-10-12 18:54:24,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:24,654 INFO L479 AbstractCegarLoop]: Abstraction has 14045 states and 20424 transitions. [2020-10-12 18:54:24,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:54:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 14045 states and 20424 transitions. [2020-10-12 18:54:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 18:54:24,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:24,659 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] [2020-10-12 18:54:24,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:54:24,659 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:24,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:24,659 INFO L82 PathProgramCache]: Analyzing trace with hash -154849731, now seen corresponding path program 1 times [2020-10-12 18:54:24,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:24,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876157513] [2020-10-12 18:54:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:24,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:24,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:24,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:25,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:25,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:29,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:29,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 18:54:29,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:54:29,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:54:29,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:54:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:54:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 18:54:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:29,838 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:54:29,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:29,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:29,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:29,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:29,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:29,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:29,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:29,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:29,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:29,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:29,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:29,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:29,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:54:29,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:29,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:54:29,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:54:29,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:29,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:54:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:29,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:29,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:29,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:29,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:29,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:29,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:29,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:29,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:29,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:29,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:29,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:54:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:29,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:29,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:29,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:29,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:29,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:29,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:54:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:54:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:29,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:29,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:29,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:29,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:29,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:29,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:29,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:29,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:29,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:30,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:54:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:30,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:30,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:30,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:30,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:30,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:30,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:30,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:30,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:30,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:54:30,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:30,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:54:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:30,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:30,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:30,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:30,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:30,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:54:30,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:30,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:30,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:54:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:30,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:30,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:30,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:30,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:30,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:30,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:54:30,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:30,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:30,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:30,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:54:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:30,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:30,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:30,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:30,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:30,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:30,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:30,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:54:30,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:54:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:30,207 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 18:54:30,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876157513] [2020-10-12 18:54:30,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:30,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-12 18:54:30,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234343278] [2020-10-12 18:54:30,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:54:30,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:30,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:54:30,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:54:30,209 INFO L87 Difference]: Start difference. First operand 14045 states and 20424 transitions. Second operand 19 states. [2020-10-12 18:54:30,598 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 143 [2020-10-12 18:54:30,791 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:54:30,965 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:54:31,144 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:54:31,322 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:54:31,633 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-12 18:54:31,969 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-12 18:54:32,213 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:54:32,849 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:54:33,028 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-12 18:54:33,482 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-12 18:54:34,290 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-12 18:54:34,560 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:54:35,445 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:54:35,623 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:54:35,784 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:54:35,942 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:54:36,170 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:54:36,375 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-12 18:54:39,074 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-12 18:54:41,429 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 18:54:45,318 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:54:45,484 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 18:54:48,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:48,355 INFO L93 Difference]: Finished difference Result 30347 states and 44222 transitions. [2020-10-12 18:54:48,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2020-10-12 18:54:48,356 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2020-10-12 18:54:48,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:48,420 INFO L225 Difference]: With dead ends: 30347 [2020-10-12 18:54:48,421 INFO L226 Difference]: Without dead ends: 18926 [2020-10-12 18:54:48,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4308 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=2193, Invalid=10689, Unknown=0, NotChecked=0, Total=12882 [2020-10-12 18:54:48,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18926 states. [2020-10-12 18:54:49,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18926 to 17081. [2020-10-12 18:54:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17081 states. [2020-10-12 18:54:49,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17081 states to 17081 states and 25144 transitions. [2020-10-12 18:54:49,238 INFO L78 Accepts]: Start accepts. Automaton has 17081 states and 25144 transitions. Word has length 103 [2020-10-12 18:54:49,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:49,238 INFO L479 AbstractCegarLoop]: Abstraction has 17081 states and 25144 transitions. [2020-10-12 18:54:49,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:54:49,238 INFO L276 IsEmpty]: Start isEmpty. Operand 17081 states and 25144 transitions. [2020-10-12 18:54:49,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:54:49,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:49,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:49,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:54:49,241 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:49,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:49,242 INFO L82 PathProgramCache]: Analyzing trace with hash 579046647, now seen corresponding path program 1 times [2020-10-12 18:54:49,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:49,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133232992] [2020-10-12 18:54:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:49,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:49,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:49,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:49,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:50,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 18:54:54,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:54:54,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:54:54,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:54:54,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:54:54,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:54:54,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,461 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:54:54,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:54,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:54:54,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:54:54,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:54:54,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:54:54,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:54:54,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:54,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:54:54,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:54:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:54,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:54,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:54,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:54:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:54:54,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:54:54,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:54,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:54,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:54:54,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:54:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:54,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:54,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:54,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:54,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:54,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:54:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:54,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:54,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:54:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:54:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:54,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:54,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:54,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:54,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:54,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 18:54:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:54,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:54,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:54,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:54:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:54,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:54,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:54,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:54,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:54,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:54,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:54,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:54,723 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 18:54:54,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133232992] [2020-10-12 18:54:54,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:54,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:54:54,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071059092] [2020-10-12 18:54:54,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:54:54,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:54,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:54:54,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:54:54,725 INFO L87 Difference]: Start difference. First operand 17081 states and 25144 transitions. Second operand 15 states. [2020-10-12 18:54:55,135 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 138 [2020-10-12 18:54:55,312 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:54:55,874 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 140 [2020-10-12 18:54:56,176 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 142 [2020-10-12 18:54:56,326 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 18:54:56,525 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:54:56,821 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:54:57,003 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:54:57,260 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:54:57,645 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-12 18:54:57,786 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:54:57,974 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 18:54:58,136 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:54:58,966 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:54:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:59,681 INFO L93 Difference]: Finished difference Result 38192 states and 55956 transitions. [2020-10-12 18:54:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 18:54:59,681 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 104 [2020-10-12 18:54:59,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:59,784 INFO L225 Difference]: With dead ends: 38192 [2020-10-12 18:54:59,784 INFO L226 Difference]: Without dead ends: 24819 [2020-10-12 18:54:59,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 18:54:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24819 states. [2020-10-12 18:55:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24819 to 17859. [2020-10-12 18:55:00,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17859 states. [2020-10-12 18:55:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17859 states to 17859 states and 26289 transitions. [2020-10-12 18:55:01,004 INFO L78 Accepts]: Start accepts. Automaton has 17859 states and 26289 transitions. Word has length 104 [2020-10-12 18:55:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:01,004 INFO L479 AbstractCegarLoop]: Abstraction has 17859 states and 26289 transitions. [2020-10-12 18:55:01,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:55:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 17859 states and 26289 transitions. [2020-10-12 18:55:01,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-12 18:55:01,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:01,007 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] [2020-10-12 18:55:01,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:55:01,008 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:01,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:01,008 INFO L82 PathProgramCache]: Analyzing trace with hash 784506300, now seen corresponding path program 1 times [2020-10-12 18:55:01,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:01,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918950800] [2020-10-12 18:55:01,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:01,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:01,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:01,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:01,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:01,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:01,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:55:06,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:55:06,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5350 [2020-10-12 18:55:06,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:55:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 18:55:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 18:55:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,540 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:55:06,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:06,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:06,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:06,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:55:06,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:06,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:55:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:55:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:06,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:06,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:55:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:06,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:06,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:06,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:55:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:06,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:55:06,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:55:06,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:06,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:06,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:55:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:06,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:06,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:06,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:55:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:06,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:06,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:55:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:06,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:06,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:06,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:55:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:06,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:06,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:06,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:55:06,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:06,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:06,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:55:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:06,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:06,825 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 18:55:06,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918950800] [2020-10-12 18:55:06,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:06,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:55:06,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172808963] [2020-10-12 18:55:06,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:55:06,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:06,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:55:06,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:55:06,827 INFO L87 Difference]: Start difference. First operand 17859 states and 26289 transitions. Second operand 17 states. [2020-10-12 18:55:07,185 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:55:07,442 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:55:08,219 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:55:11,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:11,476 INFO L93 Difference]: Finished difference Result 27476 states and 39746 transitions. [2020-10-12 18:55:11,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 18:55:11,477 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 106 [2020-10-12 18:55:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:11,548 INFO L225 Difference]: With dead ends: 27476 [2020-10-12 18:55:11,548 INFO L226 Difference]: Without dead ends: 19571 [2020-10-12 18:55:11,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=325, Invalid=1235, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:55:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19571 states. [2020-10-12 18:55:12,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19571 to 17945. [2020-10-12 18:55:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17945 states. [2020-10-12 18:55:12,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17945 states to 17945 states and 26410 transitions. [2020-10-12 18:55:12,664 INFO L78 Accepts]: Start accepts. Automaton has 17945 states and 26410 transitions. Word has length 106 [2020-10-12 18:55:12,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:12,664 INFO L479 AbstractCegarLoop]: Abstraction has 17945 states and 26410 transitions. [2020-10-12 18:55:12,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:55:12,664 INFO L276 IsEmpty]: Start isEmpty. Operand 17945 states and 26410 transitions. [2020-10-12 18:55:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-12 18:55:12,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:12,666 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] [2020-10-12 18:55:12,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:55:12,667 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:12,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:12,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1191103270, now seen corresponding path program 1 times [2020-10-12 18:55:12,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:12,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684017580] [2020-10-12 18:55:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:12,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:12,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:12,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:13,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:13,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:13,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:13,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:17,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:17,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:55:17,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:55:17,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:55:17,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:55:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 18:55:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:55:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:17,850 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:55:17,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:17,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:17,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:17,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:17,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:17,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:17,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:17,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:17,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:17,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:17,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:17,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:55:17,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:17,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:55:17,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:17,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:55:17,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:17,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:55:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:17,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:17,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:17,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:17,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:17,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:17,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:55:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:17,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:17,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:17,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:17,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:17,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:17,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:17,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:17,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:17,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:17,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:17,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:55:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:17,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:17,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:17,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:17,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:17,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:55:17,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:17,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:55:17,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:17,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:55:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:17,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:17,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:17,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:17,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:17,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:18,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:55:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:18,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:18,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:18,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:18,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:18,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:18,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:18,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:18,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:55:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:18,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:18,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:18,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:18,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:55:18,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:18,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:55:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:18,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:18,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:18,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:55:18,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:18,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:18,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:55:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:18,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:18,137 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 18:55:18,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684017580] [2020-10-12 18:55:18,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:18,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:55:18,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628147212] [2020-10-12 18:55:18,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:55:18,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:18,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:55:18,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:55:18,139 INFO L87 Difference]: Start difference. First operand 17945 states and 26410 transitions. Second operand 17 states. [2020-10-12 18:55:18,506 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:55:18,742 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:55:19,505 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:55:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:22,588 INFO L93 Difference]: Finished difference Result 30060 states and 43494 transitions. [2020-10-12 18:55:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 18:55:22,588 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 106 [2020-10-12 18:55:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:22,658 INFO L225 Difference]: With dead ends: 30060 [2020-10-12 18:55:22,658 INFO L226 Difference]: Without dead ends: 19774 [2020-10-12 18:55:22,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=325, Invalid=1235, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:55:22,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19774 states. [2020-10-12 18:55:23,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19774 to 17966. [2020-10-12 18:55:23,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17966 states. [2020-10-12 18:55:23,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17966 states to 17966 states and 26439 transitions. [2020-10-12 18:55:23,677 INFO L78 Accepts]: Start accepts. Automaton has 17966 states and 26439 transitions. Word has length 106 [2020-10-12 18:55:23,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:23,678 INFO L479 AbstractCegarLoop]: Abstraction has 17966 states and 26439 transitions. [2020-10-12 18:55:23,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:55:23,678 INFO L276 IsEmpty]: Start isEmpty. Operand 17966 states and 26439 transitions. [2020-10-12 18:55:23,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-12 18:55:23,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:23,680 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] [2020-10-12 18:55:23,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:55:23,680 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:23,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:23,681 INFO L82 PathProgramCache]: Analyzing trace with hash -453388918, now seen corresponding path program 1 times [2020-10-12 18:55:23,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:23,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155331233] [2020-10-12 18:55:23,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:24,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:24,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:24,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:24,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:55:28,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:55:28,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:55:28,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:55:28,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:55:28,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:55:28,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,859 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:55:28,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:28,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:28,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:28,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:55:28,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:55:28,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:55:28,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:55:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:28,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:28,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:55:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:28,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:28,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:28,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:55:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:28,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:55:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:28,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:28,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:28,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:55:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:28,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:29,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:55:29,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:29,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:55:29,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:29,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:29,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:29,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:55:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:29,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:29,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:29,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:29,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:29,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:55:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:29,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:29,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:55:29,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:29,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:55:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:29,136 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 18:55:29,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155331233] [2020-10-12 18:55:29,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:29,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:55:29,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455622609] [2020-10-12 18:55:29,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:55:29,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:29,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:55:29,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:55:29,138 INFO L87 Difference]: Start difference. First operand 17966 states and 26439 transitions. Second operand 17 states. [2020-10-12 18:55:29,567 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:55:29,808 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:55:31,102 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:55:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:33,203 INFO L93 Difference]: Finished difference Result 31591 states and 45645 transitions. [2020-10-12 18:55:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:55:33,203 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 106 [2020-10-12 18:55:33,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:33,257 INFO L225 Difference]: With dead ends: 31591 [2020-10-12 18:55:33,258 INFO L226 Difference]: Without dead ends: 19907 [2020-10-12 18:55:33,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=295, Invalid=1111, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 18:55:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19907 states. [2020-10-12 18:55:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19907 to 18011. [2020-10-12 18:55:34,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18011 states. [2020-10-12 18:55:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18011 states to 18011 states and 26502 transitions. [2020-10-12 18:55:34,381 INFO L78 Accepts]: Start accepts. Automaton has 18011 states and 26502 transitions. Word has length 106 [2020-10-12 18:55:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:34,382 INFO L479 AbstractCegarLoop]: Abstraction has 18011 states and 26502 transitions. [2020-10-12 18:55:34,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:55:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 18011 states and 26502 transitions. [2020-10-12 18:55:34,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 18:55:34,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:34,394 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:55:34,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:55:34,395 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:34,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:34,395 INFO L82 PathProgramCache]: Analyzing trace with hash 617599787, now seen corresponding path program 1 times [2020-10-12 18:55:34,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:34,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873008672] [2020-10-12 18:55:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:34,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-12 18:55:39,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:55:39,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:55:39,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:55:39,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-12 18:55:39,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 18:55:39,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,588 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:55:39,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:39,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:39,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:55:39,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:39,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:55:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:39,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:55:39,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:55:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:39,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:39,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:55:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:39,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:39,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:55:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:39,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:39,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:39,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:55:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:39,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:39,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:55:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:39,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:39,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:55:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:39,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:55:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:39,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:55:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:39,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:55:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:39,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 18:55:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:39,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 18:55:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 18:55:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:39,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 18:55:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:55:39,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:39,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:55:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:39,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 18:55:39,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873008672] [2020-10-12 18:55:39,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:55:39,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 18:55:39,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067817032] [2020-10-12 18:55:39,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:55:39,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:39,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:55:39,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:55:39,871 INFO L87 Difference]: Start difference. First operand 18011 states and 26502 transitions. Second operand 14 states. [2020-10-12 18:55:40,330 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 18:55:40,889 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:55:41,035 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-12 18:55:41,192 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-12 18:55:42,244 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-12 18:55:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:45,578 INFO L93 Difference]: Finished difference Result 64542 states and 94017 transitions. [2020-10-12 18:55:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:55:45,579 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 154 [2020-10-12 18:55:45,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:45,693 INFO L225 Difference]: With dead ends: 64542 [2020-10-12 18:55:45,694 INFO L226 Difference]: Without dead ends: 46907 [2020-10-12 18:55:45,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=436, Invalid=1370, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 18:55:45,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46907 states. [2020-10-12 18:55:47,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46907 to 38529. [2020-10-12 18:55:47,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38529 states. [2020-10-12 18:55:47,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38529 states to 38529 states and 55827 transitions. [2020-10-12 18:55:47,938 INFO L78 Accepts]: Start accepts. Automaton has 38529 states and 55827 transitions. Word has length 154 [2020-10-12 18:55:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:47,938 INFO L479 AbstractCegarLoop]: Abstraction has 38529 states and 55827 transitions. [2020-10-12 18:55:47,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:55:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 38529 states and 55827 transitions. [2020-10-12 18:55:47,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 18:55:47,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:47,954 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:55:47,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:55:47,955 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:47,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:47,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1913408338, now seen corresponding path program 1 times [2020-10-12 18:55:47,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:47,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042175741] [2020-10-12 18:55:47,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:48,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:48,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:48,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:48,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:48,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:48,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:52,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:52,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-12 18:55:52,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:55:52,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:55:52,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 18:55:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:55:52,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,129 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:55:53,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:53,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:53,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:55:53,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:53,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 18:55:53,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:55:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:53,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:55:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:55:53,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:53,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:55:53,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:53,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:53,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:53,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:55:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:53,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:53,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:53,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:53,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:53,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:55:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:53,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:53,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:55:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:53,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:53,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:55:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:53,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:53,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:55:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:53,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:53,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:55:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:55:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:55:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:53,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:55:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:55:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:53,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:53,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:53,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 18:55:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:53,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:53,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:53,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:55:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:53,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:53,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:55:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:53,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:53,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 18:55:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:53,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:53,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:53,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:53,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:55:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 18:55:53,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042175741] [2020-10-12 18:55:53,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:55:53,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:55:53,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094478203] [2020-10-12 18:55:53,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:55:53,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:53,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:55:53,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:55:53,404 INFO L87 Difference]: Start difference. First operand 38529 states and 55827 transitions. Second operand 11 states. [2020-10-12 18:55:53,576 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:55:54,504 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-12 18:55:59,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:59,092 INFO L93 Difference]: Finished difference Result 111012 states and 159764 transitions. [2020-10-12 18:55:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 18:55:59,093 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2020-10-12 18:55:59,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:59,283 INFO L225 Difference]: With dead ends: 111012 [2020-10-12 18:55:59,284 INFO L226 Difference]: Without dead ends: 72819 [2020-10-12 18:55:59,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-12 18:55:59,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72819 states. [2020-10-12 18:56:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72819 to 69607. [2020-10-12 18:56:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69607 states. [2020-10-12 18:56:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69607 states to 69607 states and 99627 transitions. [2020-10-12 18:56:04,841 INFO L78 Accepts]: Start accepts. Automaton has 69607 states and 99627 transitions. Word has length 155 [2020-10-12 18:56:04,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:04,842 INFO L479 AbstractCegarLoop]: Abstraction has 69607 states and 99627 transitions. [2020-10-12 18:56:04,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:56:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 69607 states and 99627 transitions. [2020-10-12 18:56:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-12 18:56:04,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:04,859 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:04,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 18:56:04,859 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:04,860 INFO L82 PathProgramCache]: Analyzing trace with hash -144712607, now seen corresponding path program 1 times [2020-10-12 18:56:04,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:04,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21409572] [2020-10-12 18:56:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:04,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:04,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:04,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:04,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:04,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:09,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:09,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:09,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 18:56:09,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:56:09,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:56:09,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:09,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:09,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:56:09,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 18:56:09,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,044 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:56:10,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:10,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:10,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:56:10,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:56:10,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:56:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:10,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:10,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:10,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:56:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:56:10,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:10,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:56:10,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:56:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:10,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:10,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:56:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:10,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:10,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:56:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:56:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:10,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:10,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:56:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:56:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:10,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:10,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:10,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:56:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:10,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:10,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:10,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:56:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:10,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:10,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:56:10,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:56:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:56:10,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:10,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:56:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-12 18:56:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:10,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:10,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:56:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:10,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:10,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 18:56:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:10,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:10,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 18:56:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:10,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:10,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:10,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 18:56:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:10,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:10,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:10,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:10,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:56:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 18:56:10,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21409572] [2020-10-12 18:56:10,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:56:10,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:56:10,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576849064] [2020-10-12 18:56:10,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:56:10,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:10,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:56:10,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:56:10,313 INFO L87 Difference]: Start difference. First operand 69607 states and 99627 transitions. Second operand 11 states. [2020-10-12 18:56:10,485 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-12 18:56:11,735 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 141