/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:53:13,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:53:13,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:53:13,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:53:13,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:53:13,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:53:13,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:53:13,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:53:13,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:53:13,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:53:13,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:53:13,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:53:13,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:53:13,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:53:13,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:53:13,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:53:13,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:53:13,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:53:13,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:53:13,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:53:13,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:53:13,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:53:13,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:53:13,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:53:13,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:53:13,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:53:13,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:53:13,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:53:13,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:53:13,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:53:13,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:53:13,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:53:13,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:53:13,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:53:13,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:53:13,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:53:13,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:53:13,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:53:13,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:53:13,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:53:13,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:53:13,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:53:13,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:53:13,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:53:13,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:53:13,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:53:13,285 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:53:13,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:53:13,286 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:53:13,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:53:13,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:53:13,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:53:13,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:53:13,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:53:13,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:53:13,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:53:13,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:53:13,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:53:13,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:53:13,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:53:13,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:53:13,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:53:13,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:53:13,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:53:13,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:53:13,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:53:13,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:53:13,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:53:13,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:53:13,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:53:13,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:53:13,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:53:13,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:53:13,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:53:13,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:53:13,584 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:53:13,584 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:53:13,585 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-14 07:53:13,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43475ffda/fb9d0ec4b42e42eb831ac12ec32c4db8/FLAG65e7a7502 [2020-10-14 07:53:14,179 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:53:14,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-14 07:53:14,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43475ffda/fb9d0ec4b42e42eb831ac12ec32c4db8/FLAG65e7a7502 [2020-10-14 07:53:14,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43475ffda/fb9d0ec4b42e42eb831ac12ec32c4db8 [2020-10-14 07:53:14,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:53:14,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:53:14,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:53:14,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:53:14,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:53:14,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:53:14" (1/1) ... [2020-10-14 07:53:14,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:14, skipping insertion in model container [2020-10-14 07:53:14,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:53:14" (1/1) ... [2020-10-14 07:53:14,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:53:14,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:53:14,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:53:14,961 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:53:15,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:53:15,159 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:53:15,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15 WrapperNode [2020-10-14 07:53:15,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:53:15,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:53:15,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:53:15,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:53:15,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (1/1) ... [2020-10-14 07:53:15,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (1/1) ... [2020-10-14 07:53:15,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (1/1) ... [2020-10-14 07:53:15,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (1/1) ... [2020-10-14 07:53:15,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (1/1) ... [2020-10-14 07:53:15,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (1/1) ... [2020-10-14 07:53:15,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (1/1) ... [2020-10-14 07:53:15,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:53:15,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:53:15,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:53:15,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:53:15,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:53:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:53:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:53:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:53:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:53:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:53:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:53:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 07:53:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:53:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:53:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:53:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 07:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:53:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:53:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:53:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:53:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:53:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:53:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:53:15,280 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 07:53:15,280 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:53:15,280 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:53:15,280 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:53:15,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:53:15,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:53:15,887 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:53:15,888 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:53:15,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:53:15 BoogieIcfgContainer [2020-10-14 07:53:15,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:53:15,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:53:15,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:53:15,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:53:15,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:53:14" (1/3) ... [2020-10-14 07:53:15,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b760a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:53:15, skipping insertion in model container [2020-10-14 07:53:15,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:53:15" (2/3) ... [2020-10-14 07:53:15,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b760a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:53:15, skipping insertion in model container [2020-10-14 07:53:15,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:53:15" (3/3) ... [2020-10-14 07:53:15,904 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-14 07:53:15,916 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:53:15,925 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:53:15,940 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:53:15,968 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:53:15,969 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:53:15,969 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:53:15,969 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:53:15,970 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:53:15,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:53:15,970 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:53:15,970 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:53:15,998 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2020-10-14 07:53:16,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 07:53:16,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:16,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:53:16,011 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:16,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:16,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1311688707, now seen corresponding path program 1 times [2020-10-14 07:53:16,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:16,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926937168] [2020-10-14 07:53:16,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 07:53:16,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-14 07:53:16,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:16,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 07:53:16,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:16,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 07:53:16,865 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 07:53:16,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:16,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:16,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:16,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:16,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:16,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:16,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:16,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:16,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:16,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:16,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:53:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:16,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:16,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:53:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:16,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:53:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:16,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:53:16,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:16,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:16,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:16,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:16,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:53:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:17,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:17,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:17,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:17,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:17,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:17,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:17,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:17,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:53:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:17,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:17,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:17,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:17,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:17,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:53:17,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:17,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:17,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 07:53:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:17,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:17,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:17,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:17,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:17,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:53:17,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:17,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:17,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:17,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:17,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:17,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:17,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:17,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:17,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:17,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:17,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:17,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:17,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926937168] [2020-10-14 07:53:17,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:17,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:53:17,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383057494] [2020-10-14 07:53:17,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:53:17,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:17,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:53:17,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:53:17,141 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 7 states. [2020-10-14 07:53:17,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:17,923 INFO L93 Difference]: Finished difference Result 182 states and 264 transitions. [2020-10-14 07:53:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:53:17,925 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-10-14 07:53:17,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:17,944 INFO L225 Difference]: With dead ends: 182 [2020-10-14 07:53:17,944 INFO L226 Difference]: Without dead ends: 108 [2020-10-14 07:53:17,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:53:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-14 07:53:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2020-10-14 07:53:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-14 07:53:18,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-10-14 07:53:18,040 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 60 [2020-10-14 07:53:18,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:18,041 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-10-14 07:53:18,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:53:18,041 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-10-14 07:53:18,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 07:53:18,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:18,049 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] [2020-10-14 07:53:18,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:53:18,050 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:18,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:18,050 INFO L82 PathProgramCache]: Analyzing trace with hash -418202369, now seen corresponding path program 1 times [2020-10-14 07:53:18,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:18,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363590816] [2020-10-14 07:53:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:18,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:18,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:18,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 07:53:18,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:18,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-14 07:53:18,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:18,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:18,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:53:18,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:53:18,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:18,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:18,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:18,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:18,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:18,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:18,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:53:18,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:18,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:18,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:18,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:18,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:18,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:18,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:18,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:18,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:18,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:18,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:53:18,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:18,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:18,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:18,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:53:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:18,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:18,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:18,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:18,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:18,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:18,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:18,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:53:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:18,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:18,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:53:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:18,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:18,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:18,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:18,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:18,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:18,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:18,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:18,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:18,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:53:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:18,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:18,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:18,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:18,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:18,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:18,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:18,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:18,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:18,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:18,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:18,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:18,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:53:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:18,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:19,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:19,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:19,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:19,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 07:53:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:19,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:19,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:19,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:19,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:19,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:19,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:19,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363590816] [2020-10-14 07:53:19,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:19,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:53:19,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522108398] [2020-10-14 07:53:19,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:53:19,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:19,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:53:19,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:53:19,071 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 13 states. [2020-10-14 07:53:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:20,588 INFO L93 Difference]: Finished difference Result 180 states and 256 transitions. [2020-10-14 07:53:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:53:20,588 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-10-14 07:53:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:20,590 INFO L225 Difference]: With dead ends: 180 [2020-10-14 07:53:20,590 INFO L226 Difference]: Without dead ends: 108 [2020-10-14 07:53:20,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:53:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-14 07:53:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2020-10-14 07:53:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-14 07:53:20,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2020-10-14 07:53:20,611 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 60 [2020-10-14 07:53:20,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:20,611 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2020-10-14 07:53:20,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:53:20,612 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2020-10-14 07:53:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 07:53:20,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:20,613 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] [2020-10-14 07:53:20,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:53:20,614 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:20,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:20,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1183078652, now seen corresponding path program 1 times [2020-10-14 07:53:20,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:20,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758862571] [2020-10-14 07:53:20,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:20,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:20,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 07:53:22,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:53:22,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1687 [2020-10-14 07:53:22,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 07:53:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 07:53:22,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:53:22,512 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 07:53:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:22,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:22,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:22,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:22,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:22,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:22,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:53:22,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:22,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 07:53:22,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:22,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 07:53:22,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:22,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:22,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:22,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:22,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:22,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:22,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:22,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:22,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:53:22,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:22,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:22,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:22,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:22,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:22,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:22,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:22,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:22,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:22,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:53:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:22,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:22,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:22,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:22,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:22,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:22,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:53:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:22,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:22,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:22,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 07:53:22,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:22,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:22,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:53:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:22,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:22,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:22,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:22,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:22,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:22,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:22,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:22,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758862571] [2020-10-14 07:53:22,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:22,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:53:22,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857337311] [2020-10-14 07:53:22,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:53:22,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:22,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:53:22,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:53:22,904 INFO L87 Difference]: Start difference. First operand 107 states and 133 transitions. Second operand 10 states. [2020-10-14 07:53:23,049 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 07:53:24,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:24,500 INFO L93 Difference]: Finished difference Result 235 states and 311 transitions. [2020-10-14 07:53:24,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:53:24,501 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 07:53:24,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:24,506 INFO L225 Difference]: With dead ends: 235 [2020-10-14 07:53:24,506 INFO L226 Difference]: Without dead ends: 169 [2020-10-14 07:53:24,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:53:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-14 07:53:24,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2020-10-14 07:53:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-14 07:53:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 214 transitions. [2020-10-14 07:53:24,535 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 214 transitions. Word has length 82 [2020-10-14 07:53:24,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:24,536 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 214 transitions. [2020-10-14 07:53:24,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:53:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2020-10-14 07:53:24,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 07:53:24,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:24,539 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] [2020-10-14 07:53:24,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:53:24,540 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:24,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1517603962, now seen corresponding path program 1 times [2020-10-14 07:53:24,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:24,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581395663] [2020-10-14 07:53:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:24,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 07:53:25,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 699 [2020-10-14 07:53:25,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:53:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:53:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 07:53:25,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:25,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:25,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:25,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:25,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:25,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:25,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:25,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:53:25,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 07:53:25,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:53:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:53:25,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:25,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:25,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:25,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:25,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:25,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:25,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:25,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:53:25,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:25,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:25,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:25,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:25,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:25,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:25,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:25,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:25,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:53:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:25,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:25,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:53:25,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:25,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:25,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:53:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:25,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:25,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:25,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:25,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:25,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:53:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:25,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:25,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:25,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:53:25,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:53:25,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:53:25,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:25,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:25,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581395663] [2020-10-14 07:53:25,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:25,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 07:53:25,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839060761] [2020-10-14 07:53:25,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:53:25,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:25,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:53:25,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:53:25,819 INFO L87 Difference]: Start difference. First operand 165 states and 214 transitions. Second operand 16 states. [2020-10-14 07:53:33,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:33,076 INFO L93 Difference]: Finished difference Result 1579 states and 2226 transitions. [2020-10-14 07:53:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-14 07:53:33,077 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-14 07:53:33,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:33,091 INFO L225 Difference]: With dead ends: 1579 [2020-10-14 07:53:33,091 INFO L226 Difference]: Without dead ends: 1455 [2020-10-14 07:53:33,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2594 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1422, Invalid=6234, Unknown=0, NotChecked=0, Total=7656 [2020-10-14 07:53:33,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2020-10-14 07:53:33,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1413. [2020-10-14 07:53:33,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1413 states. [2020-10-14 07:53:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1981 transitions. [2020-10-14 07:53:33,271 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1981 transitions. Word has length 82 [2020-10-14 07:53:33,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:33,272 INFO L479 AbstractCegarLoop]: Abstraction has 1413 states and 1981 transitions. [2020-10-14 07:53:33,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:53:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1981 transitions. [2020-10-14 07:53:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:53:33,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:33,275 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] [2020-10-14 07:53:33,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:53:33,275 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:33,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:33,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1375228694, now seen corresponding path program 1 times [2020-10-14 07:53:33,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:33,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763132338] [2020-10-14 07:53:33,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:33,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:33,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:33,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:33,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:33,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:53:33,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:53:33,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650 [2020-10-14 07:53:33,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:33,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 07:53:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:53:33,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:34,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:34,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:34,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:34,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:34,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:34,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:34,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:34,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:34,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:34,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:34,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:34,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:34,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:34,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:34,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:34,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:53:34,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:34,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:34,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:34,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:34,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:34,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:34,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:34,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:34,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:34,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:34,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:34,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:34,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:53:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:34,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:34,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:34,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:34,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:34,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:34,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:34,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:34,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:34,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:34,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:34,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:34,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:34,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:34,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:34,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:34,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:34,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:34,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:34,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:34,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:34,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:34,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:34,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:53:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:34,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:34,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:34,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:34,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:34,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:34,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:34,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:34,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:34,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:53:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:34,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:34,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:34,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:34,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:34,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:34,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:34,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:34,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:34,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:34,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:34,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:34,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:53:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:34,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:34,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:34,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:53:34,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:34,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:34,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:53:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:53:34,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:34,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763132338] [2020-10-14 07:53:34,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:34,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:53:34,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055078661] [2020-10-14 07:53:34,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:53:34,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:34,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:53:34,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:53:34,212 INFO L87 Difference]: Start difference. First operand 1413 states and 1981 transitions. Second operand 8 states. [2020-10-14 07:53:35,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:35,515 INFO L93 Difference]: Finished difference Result 4045 states and 5729 transitions. [2020-10-14 07:53:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:53:35,517 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-14 07:53:35,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:35,535 INFO L225 Difference]: With dead ends: 4045 [2020-10-14 07:53:35,535 INFO L226 Difference]: Without dead ends: 2673 [2020-10-14 07:53:35,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:53:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2020-10-14 07:53:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 2605. [2020-10-14 07:53:35,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2020-10-14 07:53:35,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3638 transitions. [2020-10-14 07:53:35,796 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3638 transitions. Word has length 84 [2020-10-14 07:53:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:35,797 INFO L479 AbstractCegarLoop]: Abstraction has 2605 states and 3638 transitions. [2020-10-14 07:53:35,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:53:35,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3638 transitions. [2020-10-14 07:53:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:53:35,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:35,810 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] [2020-10-14 07:53:35,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:53:35,811 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:35,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:35,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1632036146, now seen corresponding path program 1 times [2020-10-14 07:53:35,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:35,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399635437] [2020-10-14 07:53:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:35,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:53:36,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-10-14 07:53:36,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:53:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:53:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:53:36,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:36,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:36,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:36,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:53:36,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:53:36,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:53:36,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:36,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:53:36,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:36,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:36,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:36,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:36,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:36,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:36,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:53:36,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:36,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:53:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:36,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:36,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:36,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:36,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:53:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:36,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:53:36,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:36,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:36,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:53:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:37,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:37,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:53:37,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:37,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:37,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:37,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:53:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:53:37,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:37,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399635437] [2020-10-14 07:53:37,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:37,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 07:53:37,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84817657] [2020-10-14 07:53:37,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:53:37,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:37,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:53:37,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:53:37,050 INFO L87 Difference]: Start difference. First operand 2605 states and 3638 transitions. Second operand 16 states. [2020-10-14 07:53:37,221 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 07:53:41,741 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-14 07:53:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:42,784 INFO L93 Difference]: Finished difference Result 6481 states and 9127 transitions. [2020-10-14 07:53:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-10-14 07:53:42,786 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-14 07:53:42,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:42,811 INFO L225 Difference]: With dead ends: 6481 [2020-10-14 07:53:42,811 INFO L226 Difference]: Without dead ends: 3917 [2020-10-14 07:53:42,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1665 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1084, Invalid=4028, Unknown=0, NotChecked=0, Total=5112 [2020-10-14 07:53:42,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3917 states. [2020-10-14 07:53:43,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3711. [2020-10-14 07:53:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3711 states. [2020-10-14 07:53:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 5216 transitions. [2020-10-14 07:53:43,109 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 5216 transitions. Word has length 84 [2020-10-14 07:53:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:43,110 INFO L479 AbstractCegarLoop]: Abstraction has 3711 states and 5216 transitions. [2020-10-14 07:53:43,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:53:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 5216 transitions. [2020-10-14 07:53:43,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:53:43,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:43,113 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] [2020-10-14 07:53:43,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:53:43,113 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:43,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:43,114 INFO L82 PathProgramCache]: Analyzing trace with hash -208666490, now seen corresponding path program 1 times [2020-10-14 07:53:43,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:43,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280131652] [2020-10-14 07:53:43,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:43,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:43,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:43,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:43,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:46,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:46,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:53:46,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:53:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3813 [2020-10-14 07:53:46,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:46,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:46,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 07:53:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:53:46,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,100 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 07:53:47,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:47,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:47,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:47,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:53:47,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:53:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:47,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:47,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:47,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:47,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:47,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:47,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:47,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:47,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:47,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:47,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:53:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:47,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:47,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:53:47,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 07:53:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:47,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:47,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:47,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:53:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:47,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:47,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:47,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:47,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280131652] [2020-10-14 07:53:47,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:47,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:53:47,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052409649] [2020-10-14 07:53:47,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:53:47,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:47,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:53:47,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:53:47,318 INFO L87 Difference]: Start difference. First operand 3711 states and 5216 transitions. Second operand 10 states. [2020-10-14 07:53:48,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:48,973 INFO L93 Difference]: Finished difference Result 10683 states and 15086 transitions. [2020-10-14 07:53:48,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:53:48,975 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-10-14 07:53:48,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:49,017 INFO L225 Difference]: With dead ends: 10683 [2020-10-14 07:53:49,017 INFO L226 Difference]: Without dead ends: 7013 [2020-10-14 07:53:49,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:53:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7013 states. [2020-10-14 07:53:49,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7013 to 6947. [2020-10-14 07:53:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6947 states. [2020-10-14 07:53:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6947 states to 6947 states and 9654 transitions. [2020-10-14 07:53:49,677 INFO L78 Accepts]: Start accepts. Automaton has 6947 states and 9654 transitions. Word has length 84 [2020-10-14 07:53:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:49,678 INFO L479 AbstractCegarLoop]: Abstraction has 6947 states and 9654 transitions. [2020-10-14 07:53:49,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:53:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 6947 states and 9654 transitions. [2020-10-14 07:53:49,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:53:49,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:49,680 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] [2020-10-14 07:53:49,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:53:49,681 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:49,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:49,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1138289330, now seen corresponding path program 1 times [2020-10-14 07:53:49,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:49,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372914337] [2020-10-14 07:53:49,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:49,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:49,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:49,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:50,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:53,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:53,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:53:53,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:53:53,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4231 [2020-10-14 07:53:53,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:53,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:53,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:53,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:53:53,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:53:53,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:54,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:54,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:54,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:54,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:54,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:54,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:54,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:54,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:54,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:54,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:54,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:54,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:54,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:54,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:54,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:54,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:53:54,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:53:54,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:54,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:54,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:54,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:54,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:54,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:54,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:54,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:54,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:54,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:54,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:54,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:54,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:54,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:54,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:54,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:54,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:54,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:54,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:54,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:54,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:54,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:54,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:54,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:54,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:53:54,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:54,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:54,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:54,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:54,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:53:54,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:54,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 07:53:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:54,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:54,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:54,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:54,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:54,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:54,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:54,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:54,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:54,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:54,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 07:53:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:54,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:54,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:54,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:54,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:54,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:54,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:54,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:54,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:54,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:53:54,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:54,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:54,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:53:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:54,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:54,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:54,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:54,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:54,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:54,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:54,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:54,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:54,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:54,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372914337] [2020-10-14 07:53:54,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:54,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:53:54,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411987613] [2020-10-14 07:53:54,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:53:54,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:54,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:53:54,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:53:54,264 INFO L87 Difference]: Start difference. First operand 6947 states and 9654 transitions. Second operand 10 states. [2020-10-14 07:53:56,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:56,408 INFO L93 Difference]: Finished difference Result 20023 states and 27920 transitions. [2020-10-14 07:53:56,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:53:56,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-10-14 07:53:56,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:56,508 INFO L225 Difference]: With dead ends: 20023 [2020-10-14 07:53:56,508 INFO L226 Difference]: Without dead ends: 13117 [2020-10-14 07:53:56,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:53:56,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13117 states. [2020-10-14 07:53:57,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13117 to 12987. [2020-10-14 07:53:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12987 states. [2020-10-14 07:53:57,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12987 states to 12987 states and 17794 transitions. [2020-10-14 07:53:57,622 INFO L78 Accepts]: Start accepts. Automaton has 12987 states and 17794 transitions. Word has length 84 [2020-10-14 07:53:57,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:57,622 INFO L479 AbstractCegarLoop]: Abstraction has 12987 states and 17794 transitions. [2020-10-14 07:53:57,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:53:57,622 INFO L276 IsEmpty]: Start isEmpty. Operand 12987 states and 17794 transitions. [2020-10-14 07:53:57,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 07:53:57,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:57,624 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] [2020-10-14 07:53:57,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:53:57,625 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:57,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:57,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1532219338, now seen corresponding path program 1 times [2020-10-14 07:53:57,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:57,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457455117] [2020-10-14 07:53:57,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:57,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:57,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:57,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:57,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 07:53:57,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:53:57,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-14 07:53:57,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:57,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:57,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:57,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:53:57,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 07:53:57,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:58,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:58,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:58,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:58,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:58,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:58,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:58,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:58,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:58,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:58,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:58,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:53:58,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:58,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:58,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:58,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:58,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:53:58,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:58,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:58,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:58,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:58,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:58,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:58,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:58,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:58,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:58,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:58,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:53:58,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:58,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:58,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:58,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:58,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:58,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:58,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:58,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:58,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:58,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:58,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:58,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:53:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:58,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:58,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:58,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:58,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:58,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:58,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:58,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:58,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:53:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:58,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:58,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:58,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:58,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:58,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:58,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:53:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:58,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:58,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:58,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:53:58,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:58,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:58,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:58,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:58,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:53:58,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:53:58,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:58,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:58,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457455117] [2020-10-14 07:53:58,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:58,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:53:58,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632654414] [2020-10-14 07:53:58,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:53:58,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:58,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:53:58,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:53:58,249 INFO L87 Difference]: Start difference. First operand 12987 states and 17794 transitions. Second operand 10 states. [2020-10-14 07:54:01,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:01,257 INFO L93 Difference]: Finished difference Result 31111 states and 42821 transitions. [2020-10-14 07:54:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 07:54:01,258 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-14 07:54:01,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:01,339 INFO L225 Difference]: With dead ends: 31111 [2020-10-14 07:54:01,340 INFO L226 Difference]: Without dead ends: 18165 [2020-10-14 07:54:01,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:54:01,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18165 states. [2020-10-14 07:54:03,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18165 to 17721. [2020-10-14 07:54:03,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17721 states. [2020-10-14 07:54:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17721 states to 17721 states and 24046 transitions. [2020-10-14 07:54:03,200 INFO L78 Accepts]: Start accepts. Automaton has 17721 states and 24046 transitions. Word has length 85 [2020-10-14 07:54:03,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:03,201 INFO L479 AbstractCegarLoop]: Abstraction has 17721 states and 24046 transitions. [2020-10-14 07:54:03,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:54:03,201 INFO L276 IsEmpty]: Start isEmpty. Operand 17721 states and 24046 transitions. [2020-10-14 07:54:03,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 07:54:03,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:03,202 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] [2020-10-14 07:54:03,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:54:03,202 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:03,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:03,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1115322997, now seen corresponding path program 1 times [2020-10-14 07:54:03,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:03,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290050302] [2020-10-14 07:54:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 07:54:03,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-14 07:54:03,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:54:03,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-14 07:54:03,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:03,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:03,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:03,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:03,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:03,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:03,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:03,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:03,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:03,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:03,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:03,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:03,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:03,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:03,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:03,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:03,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:03,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:03,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:03,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:03,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:03,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:03,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:03,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:03,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:03,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:03,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:03,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:03,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:03,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:03,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:03,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:03,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:03,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:03,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:03,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:03,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:03,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:03,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:03,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:03,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:54:03,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:03,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290050302] [2020-10-14 07:54:03,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:03,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:54:03,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886851377] [2020-10-14 07:54:03,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:54:03,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:03,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:54:03,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:54:03,858 INFO L87 Difference]: Start difference. First operand 17721 states and 24046 transitions. Second operand 13 states. [2020-10-14 07:54:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:06,005 INFO L93 Difference]: Finished difference Result 19187 states and 26911 transitions. [2020-10-14 07:54:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:54:06,005 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-14 07:54:06,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:06,089 INFO L225 Difference]: With dead ends: 19187 [2020-10-14 07:54:06,090 INFO L226 Difference]: Without dead ends: 19185 [2020-10-14 07:54:06,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:54:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19185 states. [2020-10-14 07:54:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19185 to 18009. [2020-10-14 07:54:07,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18009 states. [2020-10-14 07:54:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18009 states to 18009 states and 24310 transitions. [2020-10-14 07:54:08,045 INFO L78 Accepts]: Start accepts. Automaton has 18009 states and 24310 transitions. Word has length 85 [2020-10-14 07:54:08,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:08,046 INFO L479 AbstractCegarLoop]: Abstraction has 18009 states and 24310 transitions. [2020-10-14 07:54:08,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:54:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 18009 states and 24310 transitions. [2020-10-14 07:54:08,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 07:54:08,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:08,047 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] [2020-10-14 07:54:08,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:54:08,048 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:08,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:08,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1095153653, now seen corresponding path program 1 times [2020-10-14 07:54:08,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:08,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734015723] [2020-10-14 07:54:08,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:08,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:08,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:08,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:08,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:11,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:11,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 07:54:11,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:54:11,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3742 [2020-10-14 07:54:11,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:11,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 07:54:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:54:11,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:12,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:12,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:12,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:12,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:54:12,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:54:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:12,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:12,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:12,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:12,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:12,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:54:12,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:54:12,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:54:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:54:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:12,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:12,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:54:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:12,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:12,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:12,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:12,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:54:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:12,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:12,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:12,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 07:54:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:12,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:12,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:12,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:12,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734015723] [2020-10-14 07:54:12,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:12,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:54:12,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566978531] [2020-10-14 07:54:12,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:54:12,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:12,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:54:12,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:54:12,309 INFO L87 Difference]: Start difference. First operand 18009 states and 24310 transitions. Second operand 10 states. [2020-10-14 07:54:14,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:14,669 INFO L93 Difference]: Finished difference Result 38460 states and 52157 transitions. [2020-10-14 07:54:14,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:54:14,669 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-14 07:54:14,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:14,760 INFO L225 Difference]: With dead ends: 38460 [2020-10-14 07:54:14,760 INFO L226 Difference]: Without dead ends: 25001 [2020-10-14 07:54:14,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:54:14,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25001 states. [2020-10-14 07:54:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25001 to 24871. [2020-10-14 07:54:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24871 states. [2020-10-14 07:54:16,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24871 states to 24871 states and 33135 transitions. [2020-10-14 07:54:16,379 INFO L78 Accepts]: Start accepts. Automaton has 24871 states and 33135 transitions. Word has length 86 [2020-10-14 07:54:16,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:16,380 INFO L479 AbstractCegarLoop]: Abstraction has 24871 states and 33135 transitions. [2020-10-14 07:54:16,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:54:16,380 INFO L276 IsEmpty]: Start isEmpty. Operand 24871 states and 33135 transitions. [2020-10-14 07:54:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 07:54:16,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:16,387 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:16,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:54:16,387 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:16,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1242608942, now seen corresponding path program 1 times [2020-10-14 07:54:16,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:16,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019113763] [2020-10-14 07:54:16,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:16,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:16,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:16,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:16,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 07:54:21,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:54:21,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 07:54:21,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 07:54:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 07:54:21,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:21,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:21,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:54:21,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:21,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:21,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:21,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:21,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:21,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:21,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:21,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:21,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:21,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:21,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:21,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:54:21,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:21,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:54:21,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:21,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:21,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:21,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:21,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:21,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:21,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:21,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:54:21,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:21,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:21,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:21,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:21,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:21,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:21,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:21,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:54:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:21,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:21,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:21,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:21,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:21,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:54:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:21,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:21,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:21,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:54:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:21,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:21,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:21,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 07:54:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:21,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:21,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 07:54:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:21,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:21,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:21,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:54:21,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:21,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:21,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:54:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:21,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:21,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:21,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:21,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:21,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:21,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:21,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-14 07:54:21,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019113763] [2020-10-14 07:54:21,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:21,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:54:21,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922623157] [2020-10-14 07:54:21,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:54:21,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:21,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:54:21,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:54:21,887 INFO L87 Difference]: Start difference. First operand 24871 states and 33135 transitions. Second operand 10 states. [2020-10-14 07:54:24,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:24,453 INFO L93 Difference]: Finished difference Result 44315 states and 58994 transitions. [2020-10-14 07:54:24,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:54:24,453 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-10-14 07:54:24,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:24,520 INFO L225 Difference]: With dead ends: 44315 [2020-10-14 07:54:24,520 INFO L226 Difference]: Without dead ends: 19489 [2020-10-14 07:54:24,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:54:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19489 states. [2020-10-14 07:54:25,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19489 to 18431. [2020-10-14 07:54:25,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18431 states. [2020-10-14 07:54:25,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18431 states to 18431 states and 24062 transitions. [2020-10-14 07:54:25,529 INFO L78 Accepts]: Start accepts. Automaton has 18431 states and 24062 transitions. Word has length 129 [2020-10-14 07:54:25,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:25,530 INFO L479 AbstractCegarLoop]: Abstraction has 18431 states and 24062 transitions. [2020-10-14 07:54:25,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:54:25,530 INFO L276 IsEmpty]: Start isEmpty. Operand 18431 states and 24062 transitions. [2020-10-14 07:54:25,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:54:25,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:25,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:25,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:54:25,537 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:25,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:25,537 INFO L82 PathProgramCache]: Analyzing trace with hash 427191241, now seen corresponding path program 1 times [2020-10-14 07:54:25,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:25,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176888990] [2020-10-14 07:54:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:25,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:25,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:25,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:26,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:27,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:54:30,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:54:30,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 07:54:30,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 07:54:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 07:54:30,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:30,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:30,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:30,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:30,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:30,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:30,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:30,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:30,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:30,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:30,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:30,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:30,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:30,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:30,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:30,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:30,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:30,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:30,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:30,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:30,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:30,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:54:30,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:30,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:30,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:30,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:54:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:30,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:30,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:30,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:30,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:54:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:30,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:30,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:30,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:54:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:30,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:30,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:30,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:54:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:30,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:54:30,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:54:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:30,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:30,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:30,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:54:30,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:30,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:54:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:30,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:30,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:30,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:30,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:30,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:30,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:30,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 07:54:30,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176888990] [2020-10-14 07:54:30,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:30,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:54:30,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998757670] [2020-10-14 07:54:30,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:54:30,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:30,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:54:30,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:54:30,962 INFO L87 Difference]: Start difference. First operand 18431 states and 24062 transitions. Second operand 10 states. [2020-10-14 07:54:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:32,528 INFO L93 Difference]: Finished difference Result 27569 states and 35890 transitions. [2020-10-14 07:54:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:54:32,529 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 131 [2020-10-14 07:54:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:32,556 INFO L225 Difference]: With dead ends: 27569 [2020-10-14 07:54:32,556 INFO L226 Difference]: Without dead ends: 9229 [2020-10-14 07:54:32,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:54:32,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9229 states. [2020-10-14 07:54:33,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9229 to 9163. [2020-10-14 07:54:33,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9163 states. [2020-10-14 07:54:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9163 states to 9163 states and 11732 transitions. [2020-10-14 07:54:33,123 INFO L78 Accepts]: Start accepts. Automaton has 9163 states and 11732 transitions. Word has length 131 [2020-10-14 07:54:33,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:33,123 INFO L479 AbstractCegarLoop]: Abstraction has 9163 states and 11732 transitions. [2020-10-14 07:54:33,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:54:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 9163 states and 11732 transitions. [2020-10-14 07:54:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:54:33,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:33,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:33,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:54:33,128 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:33,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:33,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1835495573, now seen corresponding path program 1 times [2020-10-14 07:54:33,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:33,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569045518] [2020-10-14 07:54:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:33,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:33,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:33,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:33,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:34,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:54:38,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:54:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:54:38,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 07:54:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 07:54:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:38,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:38,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:38,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:38,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:38,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:38,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:54:38,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:38,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:38,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:38,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:38,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:54:38,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:38,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:38,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:38,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:38,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:38,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:38,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:54:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:38,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:38,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:38,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:54:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:38,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:38,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:38,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:38,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:54:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:38,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:38,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:54:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:38,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:38,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:54:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:38,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 07:54:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:54:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:38,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:38,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-14 07:54:38,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569045518] [2020-10-14 07:54:38,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:38,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:54:38,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328666927] [2020-10-14 07:54:38,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:54:38,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:38,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:54:38,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:54:38,448 INFO L87 Difference]: Start difference. First operand 9163 states and 11732 transitions. Second operand 10 states. [2020-10-14 07:54:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:39,828 INFO L93 Difference]: Finished difference Result 13687 states and 17480 transitions. [2020-10-14 07:54:39,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:54:39,832 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 131 [2020-10-14 07:54:39,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:39,846 INFO L225 Difference]: With dead ends: 13687 [2020-10-14 07:54:39,846 INFO L226 Difference]: Without dead ends: 4615 [2020-10-14 07:54:39,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:54:39,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2020-10-14 07:54:40,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 4581. [2020-10-14 07:54:40,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4581 states. [2020-10-14 07:54:40,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 5748 transitions. [2020-10-14 07:54:40,116 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 5748 transitions. Word has length 131 [2020-10-14 07:54:40,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:40,117 INFO L479 AbstractCegarLoop]: Abstraction has 4581 states and 5748 transitions. [2020-10-14 07:54:40,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:54:40,117 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 5748 transitions. [2020-10-14 07:54:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:54:40,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:40,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:40,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:54:40,120 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:40,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:40,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1211962869, now seen corresponding path program 1 times [2020-10-14 07:54:40,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:40,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111247960] [2020-10-14 07:54:40,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:40,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:40,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:40,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:54:45,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:54:45,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 07:54:45,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:54:45,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 07:54:45,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 07:54:45,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:45,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:45,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:45,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:45,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:45,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:54:45,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:45,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:45,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:45,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:45,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:45,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:45,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:45,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:45,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:45,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:45,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:45,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:45,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:45,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:45,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:45,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:45,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:45,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:45,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:45,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:54:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:54:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:45,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:45,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:45,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:45,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:54:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:45,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:45,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:54:45,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:54:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:45,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:45,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:45,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:54:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:45,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:45,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:54:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:45,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 07:54:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:45,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:45,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:45,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:45,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:45,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:54:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:45,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:45,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:45,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:45,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:54:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:54:45,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 07:54:45,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111247960] [2020-10-14 07:54:45,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:45,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:54:45,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193907872] [2020-10-14 07:54:45,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:54:45,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:45,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:54:45,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:54:45,579 INFO L87 Difference]: Start difference. First operand 4581 states and 5748 transitions. Second operand 17 states. [2020-10-14 07:54:45,804 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-14 07:54:47,553 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-14 07:54:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:53,727 INFO L93 Difference]: Finished difference Result 17306 states and 22357 transitions. [2020-10-14 07:54:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 07:54:53,732 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-14 07:54:53,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:53,762 INFO L225 Difference]: With dead ends: 17306 [2020-10-14 07:54:53,762 INFO L226 Difference]: Without dead ends: 13148 [2020-10-14 07:54:53,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2224 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1243, Invalid=5563, Unknown=0, NotChecked=0, Total=6806 [2020-10-14 07:54:53,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13148 states. [2020-10-14 07:54:54,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13148 to 12880. [2020-10-14 07:54:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12880 states. [2020-10-14 07:54:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12880 states to 12880 states and 16275 transitions. [2020-10-14 07:54:54,409 INFO L78 Accepts]: Start accepts. Automaton has 12880 states and 16275 transitions. Word has length 131 [2020-10-14 07:54:54,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:54,409 INFO L479 AbstractCegarLoop]: Abstraction has 12880 states and 16275 transitions. [2020-10-14 07:54:54,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:54:54,410 INFO L276 IsEmpty]: Start isEmpty. Operand 12880 states and 16275 transitions. [2020-10-14 07:54:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:54:54,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:54,413 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:54,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 07:54:54,413 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:54,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:54,413 INFO L82 PathProgramCache]: Analyzing trace with hash 817910537, now seen corresponding path program 1 times [2020-10-14 07:54:54,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:54,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436981064] [2020-10-14 07:54:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:54,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:54,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:54,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:54:59,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:54:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 07:54:59,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:54:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:54:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:54:59,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:59,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:59,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:59,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:59,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:59,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:54:59,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:54:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:59,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:59,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:59,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:59,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:54:59,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:59,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:59,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:59,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:59,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:59,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:54:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:59,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:59,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:59,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:54:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:59,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:54:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:59,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:54:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:59,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:59,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:54:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:59,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:59,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:54:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:54:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:54:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:59,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:59,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:59,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:59,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:59,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 07:54:59,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436981064] [2020-10-14 07:54:59,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:59,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 07:54:59,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124646018] [2020-10-14 07:54:59,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 07:54:59,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:59,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 07:54:59,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:54:59,987 INFO L87 Difference]: Start difference. First operand 12880 states and 16275 transitions. Second operand 19 states. [2020-10-14 07:55:01,065 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-14 07:55:01,217 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-14 07:55:01,489 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-14 07:55:01,920 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-14 07:55:02,434 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-14 07:55:05,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:05,998 INFO L93 Difference]: Finished difference Result 47435 states and 60196 transitions. [2020-10-14 07:55:05,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-14 07:55:05,999 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 131 [2020-10-14 07:55:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:06,120 INFO L225 Difference]: With dead ends: 47435 [2020-10-14 07:55:06,120 INFO L226 Difference]: Without dead ends: 35080 [2020-10-14 07:55:06,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=621, Invalid=2571, Unknown=0, NotChecked=0, Total=3192 [2020-10-14 07:55:06,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35080 states. [2020-10-14 07:55:08,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35080 to 34266. [2020-10-14 07:55:08,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34266 states. [2020-10-14 07:55:08,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34266 states to 34266 states and 43663 transitions. [2020-10-14 07:55:08,183 INFO L78 Accepts]: Start accepts. Automaton has 34266 states and 43663 transitions. Word has length 131 [2020-10-14 07:55:08,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:08,184 INFO L479 AbstractCegarLoop]: Abstraction has 34266 states and 43663 transitions. [2020-10-14 07:55:08,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 07:55:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 34266 states and 43663 transitions. [2020-10-14 07:55:08,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:55:08,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:08,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:08,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 07:55:08,189 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:08,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:08,189 INFO L82 PathProgramCache]: Analyzing trace with hash -385762711, now seen corresponding path program 1 times [2020-10-14 07:55:08,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:08,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441533159] [2020-10-14 07:55:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:08,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:08,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:08,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:55:13,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:13,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 07:55:13,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:55:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 07:55:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:55:13,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:13,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:13,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:13,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:13,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:55:13,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:13,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:13,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:13,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:13,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:13,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:13,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:13,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:13,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:13,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:13,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:13,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:13,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:13,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:13,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:13,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:13,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:55:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:13,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:13,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:13,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:55:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:13,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:55:13,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:55:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:55:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:13,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:13,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:13,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:13,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 07:55:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:13,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:13,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 07:55:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:13,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:55:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 07:55:13,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441533159] [2020-10-14 07:55:13,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:13,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:55:13,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148115481] [2020-10-14 07:55:13,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:55:13,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:13,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:55:13,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:55:13,654 INFO L87 Difference]: Start difference. First operand 34266 states and 43663 transitions. Second operand 17 states. [2020-10-14 07:55:13,862 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-14 07:55:15,446 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-14 07:55:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:27,215 INFO L93 Difference]: Finished difference Result 80376 states and 102564 transitions. [2020-10-14 07:55:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 07:55:27,216 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-14 07:55:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:27,380 INFO L225 Difference]: With dead ends: 80376 [2020-10-14 07:55:27,381 INFO L226 Difference]: Without dead ends: 58110 [2020-10-14 07:55:27,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2203 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1247, Invalid=5559, Unknown=0, NotChecked=0, Total=6806 [2020-10-14 07:55:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58110 states. [2020-10-14 07:55:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58110 to 56608. [2020-10-14 07:55:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56608 states. [2020-10-14 07:55:30,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56608 states to 56608 states and 72108 transitions. [2020-10-14 07:55:30,755 INFO L78 Accepts]: Start accepts. Automaton has 56608 states and 72108 transitions. Word has length 131 [2020-10-14 07:55:30,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:30,756 INFO L479 AbstractCegarLoop]: Abstraction has 56608 states and 72108 transitions. [2020-10-14 07:55:30,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:55:30,756 INFO L276 IsEmpty]: Start isEmpty. Operand 56608 states and 72108 transitions. [2020-10-14 07:55:30,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:55:30,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:30,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:30,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 07:55:30,761 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:30,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:30,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1248749461, now seen corresponding path program 1 times [2020-10-14 07:55:30,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:30,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825211365] [2020-10-14 07:55:30,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:30,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:30,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:30,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:31,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:35,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:35,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:55:35,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:55:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:55:35,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:35,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:35,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:55:35,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:55:35,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 07:55:35,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:35,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:35,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:35,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:35,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:35,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:35,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:35,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:35,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:35,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:35,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:35,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:35,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:35,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:35,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:35,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:35,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:35,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:35,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:35,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:35,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:35,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:35,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:35,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:35,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:35,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:35,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:35,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:35,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:35,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:35,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:35,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:35,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:35,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:35,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:35,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:35,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:35,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:35,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:35,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:35,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:35,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:36,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:36,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:36,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:36,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:36,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:36,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:36,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:36,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:36,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:36,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:55:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:36,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:36,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:36,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:36,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:36,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:36,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:55:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:55:36,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:36,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 07:55:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 07:55:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:36,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:36,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:36,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:36,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:36,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 07:55:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:36,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:36,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:36,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:36,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 07:55:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:36,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:36,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:55:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:36,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:36,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:36,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:36,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:36,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:36,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:36,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:36,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:55:36,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:36,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 07:55:36,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825211365] [2020-10-14 07:55:36,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:36,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:55:36,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813884738] [2020-10-14 07:55:36,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:55:36,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:36,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:55:36,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:55:36,242 INFO L87 Difference]: Start difference. First operand 56608 states and 72108 transitions. Second operand 17 states. [2020-10-14 07:55:36,459 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-14 07:55:37,754 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-14 07:55:39,504 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 54 [2020-10-14 07:55:47,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:47,756 INFO L93 Difference]: Finished difference Result 92680 states and 118244 transitions. [2020-10-14 07:55:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 07:55:47,757 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-14 07:55:47,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:47,947 INFO L225 Difference]: With dead ends: 92680 [2020-10-14 07:55:47,947 INFO L226 Difference]: Without dead ends: 69218 [2020-10-14 07:55:48,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2206 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1247, Invalid=5559, Unknown=0, NotChecked=0, Total=6806 [2020-10-14 07:55:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69218 states. [2020-10-14 07:55:51,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69218 to 67108. [2020-10-14 07:55:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67108 states. [2020-10-14 07:55:51,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67108 states to 67108 states and 85443 transitions. [2020-10-14 07:55:51,981 INFO L78 Accepts]: Start accepts. Automaton has 67108 states and 85443 transitions. Word has length 131 [2020-10-14 07:55:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:51,982 INFO L479 AbstractCegarLoop]: Abstraction has 67108 states and 85443 transitions. [2020-10-14 07:55:51,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:55:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 67108 states and 85443 transitions. [2020-10-14 07:55:51,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:55:51,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:51,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:51,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 07:55:51,986 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:51,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:51,987 INFO L82 PathProgramCache]: Analyzing trace with hash 894811335, now seen corresponding path program 1 times [2020-10-14 07:55:51,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:51,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582213104] [2020-10-14 07:55:51,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:55:57,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:57,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:55:57,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:55:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-14 07:55:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 07:55:57,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:57,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:57,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:57,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:57,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:55:57,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:57,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:57,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:57,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:57,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:57,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:57,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:57,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:57,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:57,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:57,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:57,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:57,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:57,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:57,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:55:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:57,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:57,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:55:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:57,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:57,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:55:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:55:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:57,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:57,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:55:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:57,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:57,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:57,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:55:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:57,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:57,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:57,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:57,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:57,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:55:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:57,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:57,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:57,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:57,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:57,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:57,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:57,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:57,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:57,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:55:57,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:57,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:57,418 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 07:55:57,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582213104] [2020-10-14 07:55:57,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:57,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:55:57,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286885288] [2020-10-14 07:55:57,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:55:57,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:57,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:55:57,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:55:57,421 INFO L87 Difference]: Start difference. First operand 67108 states and 85443 transitions. Second operand 17 states. [2020-10-14 07:55:57,645 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-14 07:55:59,732 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-14 07:56:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:06,061 INFO L93 Difference]: Finished difference Result 140492 states and 179258 transitions. [2020-10-14 07:56:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 07:56:06,061 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-14 07:56:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:06,298 INFO L225 Difference]: With dead ends: 140492 [2020-10-14 07:56:06,298 INFO L226 Difference]: Without dead ends: 74404 [2020-10-14 07:56:06,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2020-10-14 07:56:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74404 states. [2020-10-14 07:56:13,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74404 to 73159. [2020-10-14 07:56:13,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73159 states. [2020-10-14 07:56:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73159 states to 73159 states and 93226 transitions. [2020-10-14 07:56:13,560 INFO L78 Accepts]: Start accepts. Automaton has 73159 states and 93226 transitions. Word has length 131 [2020-10-14 07:56:13,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:13,561 INFO L479 AbstractCegarLoop]: Abstraction has 73159 states and 93226 transitions. [2020-10-14 07:56:13,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:56:13,561 INFO L276 IsEmpty]: Start isEmpty. Operand 73159 states and 93226 transitions. [2020-10-14 07:56:13,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 07:56:13,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:13,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:13,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 07:56:13,564 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:13,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:13,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1275939013, now seen corresponding path program 1 times [2020-10-14 07:56:13,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:13,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294996782] [2020-10-14 07:56:13,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:13,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:13,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:13,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:14,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:18,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:56:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:18,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:18,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:18,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:18,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:18,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:18,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:18,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:18,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:18,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:18,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:18,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:18,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:18,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:18,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:18,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:18,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:56:18,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:18,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:18,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:18,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:18,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:56:18,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:18,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:56:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:18,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:18,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:18,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:18,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:18,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:18,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:18,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:18,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:18,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:56:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:18,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:18,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:18,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:18,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:18,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:18,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:18,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:18,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:18,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:18,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:56:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:18,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:18,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:18,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:18,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:18,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:18,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:18,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:18,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:56:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:18,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:18,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:18,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:18,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:18,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:56:18,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:18,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:56:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:18,981 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-10-14 07:56:19,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:56:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:19,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:19,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:19,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:19,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:56:19,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:19,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:19,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:19,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:19,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:19,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:19,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:19,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:19,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:19,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:19,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:19,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:19,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:19,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:56:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:19,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:19,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:19,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:19,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:19,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:19,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:19,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:19,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:19,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:19,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:19,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:56:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:19,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:19,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:19,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:19,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:19,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:19,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:19,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:56:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:19,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:19,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:19,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:19,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:19,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:19,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:56:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:19,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:19,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:19,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:19,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:19,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:19,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:56:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:19,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:19,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:56:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:19,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:19,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:19,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:19,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:19,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:19,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:19,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:56:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:19,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-14 07:56:19,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294996782] [2020-10-14 07:56:19,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:56:19,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 07:56:19,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638402768] [2020-10-14 07:56:19,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:56:19,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:19,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:56:19,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:56:19,178 INFO L87 Difference]: Start difference. First operand 73159 states and 93226 transitions. Second operand 16 states. [2020-10-14 07:56:20,179 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 120 [2020-10-14 07:56:22,917 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 07:56:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:27,248 INFO L93 Difference]: Finished difference Result 150060 states and 190405 transitions. [2020-10-14 07:56:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 07:56:27,248 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 132 [2020-10-14 07:56:27,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:27,421 INFO L225 Difference]: With dead ends: 150060 [2020-10-14 07:56:27,421 INFO L226 Difference]: Without dead ends: 77023 [2020-10-14 07:56:27,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=482, Invalid=2068, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 07:56:27,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77023 states. [2020-10-14 07:56:34,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77023 to 73783. [2020-10-14 07:56:34,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73783 states. [2020-10-14 07:56:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73783 states to 73783 states and 93850 transitions. [2020-10-14 07:56:34,745 INFO L78 Accepts]: Start accepts. Automaton has 73783 states and 93850 transitions. Word has length 132 [2020-10-14 07:56:34,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:34,745 INFO L479 AbstractCegarLoop]: Abstraction has 73783 states and 93850 transitions. [2020-10-14 07:56:34,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:56:34,746 INFO L276 IsEmpty]: Start isEmpty. Operand 73783 states and 93850 transitions. [2020-10-14 07:56:34,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 07:56:34,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:34,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:34,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 07:56:34,750 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:34,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:34,751 INFO L82 PathProgramCache]: Analyzing trace with hash -310663281, now seen corresponding path program 1 times [2020-10-14 07:56:34,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:34,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311087232] [2020-10-14 07:56:34,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 07:56:39,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:56:39,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 07:56:39,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:39,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 07:56:39,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 07:56:39,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:39,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:39,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:39,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:56:39,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:39,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:39,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:39,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:56:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:39,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:56:39,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:39,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:56:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:39,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:39,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:39,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:39,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:56:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:39,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:39,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:39,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:39,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:56:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:39,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:39,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:39,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:39,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:56:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:39,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:39,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:56:39,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:39,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:39,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:39,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:39,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:56:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:39,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:39,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:39,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:39,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:39,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:39,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:39,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:39,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:39,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:40,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:40,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:40,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:40,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:40,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:40,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:40,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:40,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:40,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:40,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:40,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:56:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:40,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:40,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:40,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:40,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:40,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:40,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:40,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:40,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:56:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:40,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:40,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:40,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:40,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:40,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:40,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:40,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:40,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:40,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:40,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:40,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:40,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:56:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:40,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:40,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:40,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:40,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:40,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:40,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:40,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:40,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:40,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:40,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:40,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:40,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:56:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:40,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:40,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:40,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:40,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:40,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:40,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:56:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 07:56:40,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311087232] [2020-10-14 07:56:40,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:56:40,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:56:40,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306664101] [2020-10-14 07:56:40,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:56:40,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:40,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:56:40,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:56:40,087 INFO L87 Difference]: Start difference. First operand 73783 states and 93850 transitions. Second operand 10 states.