/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:45:46,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:45:46,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:45:46,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:45:46,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:45:46,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:45:46,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:45:46,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:45:46,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:45:46,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:45:46,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:45:46,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:45:46,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:45:46,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:45:46,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:45:46,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:45:46,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:45:46,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:45:46,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:45:46,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:45:46,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:45:46,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:45:46,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:45:46,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:45:46,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:45:46,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:45:46,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:45:46,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:45:46,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:45:46,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:45:46,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:45:46,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:45:46,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:45:46,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:45:46,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:45:46,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:45:46,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:45:46,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:45:46,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:45:46,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:45:46,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:45:46,244 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 07:45:46,265 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:45:46,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:45:46,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:45:46,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:45:46,267 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:45:46,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:45:46,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:45:46,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:45:46,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:45:46,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:45:46,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:45:46,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:45:46,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:45:46,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:45:46,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:45:46,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:45:46,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:45:46,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:45:46,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:45:46,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:45:46,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:45:46,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:45:46,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:45:46,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:45:46,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:45:46,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:45:46,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:45:46,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:45:46,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:45:46,272 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 07:45:46,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:45:46,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:45:46,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:45:46,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:45:46,583 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:45:46,584 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.ufo.UNBOUNDED.pals.c [2020-10-14 07:45:46,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5c214948/8294f356bc94421c9e82eee114d3af5c/FLAG9543001b0 [2020-10-14 07:45:47,204 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:45:47,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.ufo.UNBOUNDED.pals.c [2020-10-14 07:45:47,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5c214948/8294f356bc94421c9e82eee114d3af5c/FLAG9543001b0 [2020-10-14 07:45:47,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5c214948/8294f356bc94421c9e82eee114d3af5c [2020-10-14 07:45:47,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:45:47,493 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:45:47,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:45:47,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:45:47,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:45:47,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:47,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d2a1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47, skipping insertion in model container [2020-10-14 07:45:47,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:47,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:45:47,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:45:47,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:45:47,903 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:45:47,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:45:47,998 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:45:47,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47 WrapperNode [2020-10-14 07:45:47,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:45:48,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:45:48,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:45:48,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:45:48,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:48,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:48,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:48,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:48,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:48,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:48,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (1/1) ... [2020-10-14 07:45:48,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:45:48,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:45:48,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:45:48,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:45:48,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (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 07:45:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:45:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:45:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:45:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:45:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:45:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:45:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:45:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:45:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:45:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:45:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:45:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:45:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 07:45:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:45:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:45:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:45:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:45:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:45:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:45:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:45:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:45:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:45:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:45:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:45:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:45:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:45:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:45:48,892 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:45:48,892 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:45:48,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:45:48 BoogieIcfgContainer [2020-10-14 07:45:48,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:45:48,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:45:48,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:45:48,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:45:48,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:45:47" (1/3) ... [2020-10-14 07:45:48,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e3bcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:45:48, skipping insertion in model container [2020-10-14 07:45:48,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:45:47" (2/3) ... [2020-10-14 07:45:48,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e3bcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:45:48, skipping insertion in model container [2020-10-14 07:45:48,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:45:48" (3/3) ... [2020-10-14 07:45:48,907 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.UNBOUNDED.pals.c [2020-10-14 07:45:48,918 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:45:48,927 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:45:48,941 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:45:48,967 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:45:48,967 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:45:48,967 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:45:48,967 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:45:48,968 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:45:48,968 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:45:48,968 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:45:48,968 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:45:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-14 07:45:49,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 07:45:49,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:45:49,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:45:49,008 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:45:49,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:45:49,013 INFO L82 PathProgramCache]: Analyzing trace with hash -697851026, now seen corresponding path program 1 times [2020-10-14 07:45:49,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:45:49,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240948013] [2020-10-14 07:45:49,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:45:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:49,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:49,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:49,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 07:45:49,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:49,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-14 07:45:49,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:49,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 07:45:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:49,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:45:50,058 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:45:50,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:45:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:50,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:50,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:45:50,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:50,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:45:50,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:50,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:50,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:45:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:50,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:50,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:45:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:50,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:50,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:50,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 07:45:50,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:50,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:45:50,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:50,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:45:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:50,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:50,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 07:45:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:50,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:50,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:50,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:45:50,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:50,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:45:50,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:50,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:50,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:45:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:50,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:50,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:45:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:50,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:50,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:50,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:45:50,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:50,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:45:50,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:50,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:50,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:50,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:45:50,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:50,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:50,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:45:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:50,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:50,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:50,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:45:50,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:45:50,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:50,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:45:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:50,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:45:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:50,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:50,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:50,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:45:50,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:50,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:45:50,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:50,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:50,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:50,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:45:50,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:50,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:50,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:45:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:50,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:50,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:50,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:45:50,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:50,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:45:50,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:50,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:45:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:50,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:45:50,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240948013] [2020-10-14 07:45:50,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:45:50,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 07:45:50,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250473740] [2020-10-14 07:45:50,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:45:50,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:45:50,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:45:50,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:45:50,372 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 6 states. [2020-10-14 07:45:51,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:45:51,601 INFO L93 Difference]: Finished difference Result 272 states and 432 transitions. [2020-10-14 07:45:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:45:51,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-14 07:45:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:45:51,618 INFO L225 Difference]: With dead ends: 272 [2020-10-14 07:45:51,619 INFO L226 Difference]: Without dead ends: 174 [2020-10-14 07:45:51,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:45:51,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-14 07:45:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2020-10-14 07:45:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-14 07:45:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 255 transitions. [2020-10-14 07:45:51,689 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 255 transitions. Word has length 62 [2020-10-14 07:45:51,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:45:51,689 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 255 transitions. [2020-10-14 07:45:51,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:45:51,690 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 255 transitions. [2020-10-14 07:45:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 07:45:51,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:45:51,693 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] [2020-10-14 07:45:51,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:45:51,694 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:45:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:45:51,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1541856528, now seen corresponding path program 1 times [2020-10-14 07:45:51,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:45:51,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186865781] [2020-10-14 07:45:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:45:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:51,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:52,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:52,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 07:45:52,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:52,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-14 07:45:52,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:52,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:45:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 07:45:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:45:52,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:52,500 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:45:52,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:45:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:52,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:52,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:52,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:45:52,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:52,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:45:52,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:52,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:52,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:52,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:45:52,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:52,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:52,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:45:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:52,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:52,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:52,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 07:45:52,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 07:45:52,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:52,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:45:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:45:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 07:45:52,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:52,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 07:45:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:52,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:52,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:52,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:45:52,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:52,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:45:52,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:52,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:45:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:45:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:45:52,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:52,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:45:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:52,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:52,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:52,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:45:52,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:52,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:45:52,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:52,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:52,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:52,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:45:52,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:52,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:52,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:45:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:52,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:52,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:52,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:45:52,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:52,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:45:52,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:52,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:52,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:45:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:52,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:45:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:52,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:52,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:45:52,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:52,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:45:52,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:52,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:45:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 34 [2020-10-14 07:45:52,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:45:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:52,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:52,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:45:52,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:45:52,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:45:52,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:45:52,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:45:52,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:45:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:45:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:45:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:45:52,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:45:52,985 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 07:45:52,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186865781] [2020-10-14 07:45:52,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:45:52,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:45:52,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681055696] [2020-10-14 07:45:52,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:45:52,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:45:52,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:45:52,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:45:52,990 INFO L87 Difference]: Start difference. First operand 159 states and 255 transitions. Second operand 12 states. [2020-10-14 07:45:53,467 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:45:53,684 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-14 07:45:53,966 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 07:45:54,174 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 07:45:55,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:45:55,612 INFO L93 Difference]: Finished difference Result 270 states and 424 transitions. [2020-10-14 07:45:55,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:45:55,614 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2020-10-14 07:45:55,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:45:55,620 INFO L225 Difference]: With dead ends: 270 [2020-10-14 07:45:55,620 INFO L226 Difference]: Without dead ends: 174 [2020-10-14 07:45:55,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:45:55,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-14 07:45:55,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2020-10-14 07:45:55,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-14 07:45:55,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 228 transitions. [2020-10-14 07:45:55,663 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 228 transitions. Word has length 62 [2020-10-14 07:45:55,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:45:55,663 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 228 transitions. [2020-10-14 07:45:55,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:45:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 228 transitions. [2020-10-14 07:45:55,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 07:45:55,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:45:55,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:45:55,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:45:55,673 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:45:55,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:45:55,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1465750151, now seen corresponding path program 1 times [2020-10-14 07:45:55,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:45:55,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630550635] [2020-10-14 07:45:55,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:45:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:45:55,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:55,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:45:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:00,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:00,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 07:46:00,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:46:00,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 07:46:00,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:00,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:00,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:46:00,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 07:46:00,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:46:00,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:00,942 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:46:00,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:46:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:00,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:00,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:00,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:46:00,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:00,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:00,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:00,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:46:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:00,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:01,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:01,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 07:46:01,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:01,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 07:46:01,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:01,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:01,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:01,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:46:01,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:01,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:46:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:01,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:01,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:01,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:46:01,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:01,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:01,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:01,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:01,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:46:01,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:46:01,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 07:46:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:01,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:01,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:01,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:01,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:01,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:46:01,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:01,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:01,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:01,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:46:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:01,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:01,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:01,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:01,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:01,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 07:46:01,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:01,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:01,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:01,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:46:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:01,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:01,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:01,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:01,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:01,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:46:01,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:01,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:01,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:46:01,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:46:01,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:46:01,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:01,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 07:46:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:01,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:01,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:01,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:01,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:01,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:01,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:01,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:01,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:01,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:46:01,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630550635] [2020-10-14 07:46:01,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:46:01,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:46:01,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420270710] [2020-10-14 07:46:01,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:46:01,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:46:01,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:46:01,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:46:01,344 INFO L87 Difference]: Start difference. First operand 159 states and 228 transitions. Second operand 9 states. [2020-10-14 07:46:01,538 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:46:03,563 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-14 07:46:03,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:46:03,892 INFO L93 Difference]: Finished difference Result 375 states and 560 transitions. [2020-10-14 07:46:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:46:03,894 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-14 07:46:03,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:46:03,898 INFO L225 Difference]: With dead ends: 375 [2020-10-14 07:46:03,899 INFO L226 Difference]: Without dead ends: 285 [2020-10-14 07:46:03,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:46:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-14 07:46:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 249. [2020-10-14 07:46:03,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-14 07:46:03,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 369 transitions. [2020-10-14 07:46:03,935 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 369 transitions. Word has length 88 [2020-10-14 07:46:03,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:46:03,935 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 369 transitions. [2020-10-14 07:46:03,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:46:03,935 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 369 transitions. [2020-10-14 07:46:03,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 07:46:03,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:46:03,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:46:03,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:46:03,939 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:46:03,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:46:03,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1097676554, now seen corresponding path program 1 times [2020-10-14 07:46:03,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:46:03,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517417090] [2020-10-14 07:46:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:46:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:04,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:04,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:04,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:04,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:05,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:08,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:08,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 07:46:08,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:46:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 07:46:08,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:08,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:46:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:46:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 07:46:08,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:09,168 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:46:09,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:46:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:09,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:09,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:09,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:46:09,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:46:09,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:09,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:09,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:46:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:09,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:09,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:09,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 07:46:09,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:09,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 07:46:09,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:09,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:09,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:46:09,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:09,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:46:09,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:09,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:46:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:09,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:09,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:09,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:46:09,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:09,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:09,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:09,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:46:09,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:09,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 07:46:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:09,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:09,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:09,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:09,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:09,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:46:09,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:09,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:09,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:09,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:09,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:09,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:09,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:46:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:09,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:09,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:09,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:09,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:09,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:46:09,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:09,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:09,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:09,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:09,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:09,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:09,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:46:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:09,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:09,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:09,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:46:09,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:09,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:46:09,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:09,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:46:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:46:09,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:09,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 07:46:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:09,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:09,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:09,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:09,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:46:09,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:09,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:09,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:46:09,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517417090] [2020-10-14 07:46:09,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:46:09,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:46:09,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88596106] [2020-10-14 07:46:09,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:46:09,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:46:09,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:46:09,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:46:09,577 INFO L87 Difference]: Start difference. First operand 249 states and 369 transitions. Second operand 9 states. [2020-10-14 07:46:09,759 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:46:10,004 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 07:46:10,204 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 07:46:10,535 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-14 07:46:11,495 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:46:14,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:46:14,146 INFO L93 Difference]: Finished difference Result 974 states and 1455 transitions. [2020-10-14 07:46:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 07:46:14,147 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-10-14 07:46:14,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:46:14,155 INFO L225 Difference]: With dead ends: 974 [2020-10-14 07:46:14,155 INFO L226 Difference]: Without dead ends: 751 [2020-10-14 07:46:14,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:46:14,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-10-14 07:46:14,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 674. [2020-10-14 07:46:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2020-10-14 07:46:14,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1001 transitions. [2020-10-14 07:46:14,244 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1001 transitions. Word has length 90 [2020-10-14 07:46:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:46:14,245 INFO L479 AbstractCegarLoop]: Abstraction has 674 states and 1001 transitions. [2020-10-14 07:46:14,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:46:14,245 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1001 transitions. [2020-10-14 07:46:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 07:46:14,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:46:14,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:46:14,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:46:14,249 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:46:14,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:46:14,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1119143682, now seen corresponding path program 1 times [2020-10-14 07:46:14,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:46:14,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047712375] [2020-10-14 07:46:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:46:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:14,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:14,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:14,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:14,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:15,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:17,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:19,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 07:46:19,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:46:19,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:46:19,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:19,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:19,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:19,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:46:19,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:46:19,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:19,462 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:46:19,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:46:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:19,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:19,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:46:19,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:46:19,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:19,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:19,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:19,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:46:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:19,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:19,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:46:19,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:46:19,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 07:46:19,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:19,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:19,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:19,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:46:19,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:46:19,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:19,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:46:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:19,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:19,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:46:19,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:19,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:46:19,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:19,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:19,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:19,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:46:19,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:19,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:19,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:46:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:19,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:19,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:19,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:19,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:19,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:19,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:19,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:19,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:19,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 07:46:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:19,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:19,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:19,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:19,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:19,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:19,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:19,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:46:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:19,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:19,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:46:19,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:19,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:46:19,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:19,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:19,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:19,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:46:19,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:19,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:19,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:46:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:19,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:19,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:19,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:19,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:19,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:46:19,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:19,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:19,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:46:19,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047712375] [2020-10-14 07:46:19,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:46:19,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:46:19,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246827604] [2020-10-14 07:46:19,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:46:19,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:46:19,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:46:19,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:46:19,736 INFO L87 Difference]: Start difference. First operand 674 states and 1001 transitions. Second operand 7 states. [2020-10-14 07:46:20,007 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:46:21,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:46:21,105 INFO L93 Difference]: Finished difference Result 1454 states and 2097 transitions. [2020-10-14 07:46:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:46:21,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-14 07:46:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:46:21,112 INFO L225 Difference]: With dead ends: 1454 [2020-10-14 07:46:21,113 INFO L226 Difference]: Without dead ends: 849 [2020-10-14 07:46:21,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:46:21,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2020-10-14 07:46:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 683. [2020-10-14 07:46:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2020-10-14 07:46:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1012 transitions. [2020-10-14 07:46:21,162 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1012 transitions. Word has length 91 [2020-10-14 07:46:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:46:21,162 INFO L479 AbstractCegarLoop]: Abstraction has 683 states and 1012 transitions. [2020-10-14 07:46:21,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:46:21,163 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1012 transitions. [2020-10-14 07:46:21,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 07:46:21,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:46:21,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:46:21,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:46:21,166 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:46:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:46:21,166 INFO L82 PathProgramCache]: Analyzing trace with hash 900283963, now seen corresponding path program 1 times [2020-10-14 07:46:21,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:46:21,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357688956] [2020-10-14 07:46:21,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:46:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:21,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:21,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:21,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:26,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:26,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 07:46:26,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:46:26,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:46:26,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:26,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:46:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:46:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 07:46:26,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:26,386 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:46:26,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:46:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:26,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:26,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:26,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:46:26,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:26,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:46:26,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:26,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:26,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:26,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:46:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:26,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:26,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:26,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 07:46:26,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 07:46:26,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:26,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:46:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:46:26,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:26,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:46:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:26,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:26,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:26,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:46:26,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:26,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:46:26,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:26,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:46:26,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:26,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 07:46:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:26,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:26,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:26,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:26,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:26,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:46:26,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:26,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:26,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:46:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:26,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:26,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:26,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:26,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:26,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:46:26,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:26,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:26,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:26,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:46:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:26,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:26,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:26,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:46:26,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:26,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:46:26,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:26,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:46:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:46:26,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:26,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:46:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:26,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:26,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:26,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:26,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:26,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:26,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:26,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:26,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:26,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:46:26,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357688956] [2020-10-14 07:46:26,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:46:26,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:46:26,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007976847] [2020-10-14 07:46:26,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:46:26,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:46:26,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:46:26,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:46:26,779 INFO L87 Difference]: Start difference. First operand 683 states and 1012 transitions. Second operand 9 states. [2020-10-14 07:46:27,019 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:46:27,213 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 07:46:27,651 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-14 07:46:27,862 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 07:46:28,729 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:46:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:46:31,422 INFO L93 Difference]: Finished difference Result 2637 states and 3918 transitions. [2020-10-14 07:46:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 07:46:31,423 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-14 07:46:31,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:46:31,436 INFO L225 Difference]: With dead ends: 2637 [2020-10-14 07:46:31,437 INFO L226 Difference]: Without dead ends: 2020 [2020-10-14 07:46:31,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:46:31,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2020-10-14 07:46:31,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1833. [2020-10-14 07:46:31,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1833 states. [2020-10-14 07:46:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2698 transitions. [2020-10-14 07:46:31,568 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2698 transitions. Word has length 92 [2020-10-14 07:46:31,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:46:31,569 INFO L479 AbstractCegarLoop]: Abstraction has 1833 states and 2698 transitions. [2020-10-14 07:46:31,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:46:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2698 transitions. [2020-10-14 07:46:31,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 07:46:31,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:46:31,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:46:31,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:46:31,575 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:46:31,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:46:31,575 INFO L82 PathProgramCache]: Analyzing trace with hash -128668889, now seen corresponding path program 1 times [2020-10-14 07:46:31,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:46:31,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639950317] [2020-10-14 07:46:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:46:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:31,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:31,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:31,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:31,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:33,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:33,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:36,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:36,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 07:46:36,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:46:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:46:36,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:36,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:46:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:46:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:46:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:36,810 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:46:36,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:46:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:36,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:36,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:46:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:46:36,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:36,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:36,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:36,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:46:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:36,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:36,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:36,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 07:46:36,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 07:46:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:36,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:46:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:46:36,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:36,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:46:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:36,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:36,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:36,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:46:36,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:36,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:46:36,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:36,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:46:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:36,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 07:46:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:36,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:36,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:36,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:36,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:36,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:46:36,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:36,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:36,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:46:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:37,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:37,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:37,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:37,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:37,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:46:37,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:37,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:37,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:37,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:37,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:37,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:37,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:46:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:37,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:37,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:37,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:46:37,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:46:37,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:37,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:46:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:46:37,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:46:37,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:46:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:37,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:37,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:37,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:37,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:37,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:46:37,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:37,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:37,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:37,113 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 07:46:37,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639950317] [2020-10-14 07:46:37,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:46:37,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:46:37,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94943479] [2020-10-14 07:46:37,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:46:37,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:46:37,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:46:37,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:46:37,122 INFO L87 Difference]: Start difference. First operand 1833 states and 2698 transitions. Second operand 9 states. [2020-10-14 07:46:37,300 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:46:37,481 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-14 07:46:37,703 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-14 07:46:37,869 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:46:38,483 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:46:40,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:46:40,470 INFO L93 Difference]: Finished difference Result 5517 states and 8204 transitions. [2020-10-14 07:46:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:46:40,471 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-14 07:46:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:46:40,494 INFO L225 Difference]: With dead ends: 5517 [2020-10-14 07:46:40,494 INFO L226 Difference]: Without dead ends: 3716 [2020-10-14 07:46:40,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:46:40,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2020-10-14 07:46:40,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3389. [2020-10-14 07:46:40,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3389 states. [2020-10-14 07:46:40,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 4926 transitions. [2020-10-14 07:46:40,725 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 4926 transitions. Word has length 92 [2020-10-14 07:46:40,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:46:40,726 INFO L479 AbstractCegarLoop]: Abstraction has 3389 states and 4926 transitions. [2020-10-14 07:46:40,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:46:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 4926 transitions. [2020-10-14 07:46:40,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 07:46:40,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:46:40,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:46:40,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:46:40,735 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:46:40,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:46:40,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1076562166, now seen corresponding path program 1 times [2020-10-14 07:46:40,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:46:40,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247438409] [2020-10-14 07:46:40,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:46:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:40,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:40,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:40,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:41,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:45,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:45,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 07:46:45,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:46:45,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:46:45,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:45,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:46:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 07:46:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 07:46:45,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:45,942 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:46:45,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:46:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:45,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:45,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:45,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:46:45,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:46:45,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:45,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:45,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:46:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:45,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:46,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:46,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:46:46,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:46:46,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 07:46:46,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:46,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:46,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:46:46,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:46,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:46:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:46,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:46,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:46,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:46:46,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:46:46,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:46,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:46,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:46,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:46,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:46:46,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:46,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:46:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:46,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:46,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:46,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:46,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:46,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:46:46,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:46,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:46,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:46,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:46,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:46:46,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:46,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:46:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:46,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:46,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:46,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:46,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:46:46,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:46,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:46:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:46:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:46:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:46,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 07:46:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:46,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:46,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:46,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:46:46,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:46:46,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:46,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:46:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:46,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:46:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:46,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:46,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:46,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:46,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:46:46,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:46,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:46,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:46:46,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247438409] [2020-10-14 07:46:46,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:46:46,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:46:46,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716722476] [2020-10-14 07:46:46,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:46:46,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:46:46,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:46:46,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:46:46,271 INFO L87 Difference]: Start difference. First operand 3389 states and 4926 transitions. Second operand 9 states. [2020-10-14 07:46:46,449 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:46:48,657 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-14 07:46:49,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:46:49,078 INFO L93 Difference]: Finished difference Result 8066 states and 11988 transitions. [2020-10-14 07:46:49,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:46:49,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-14 07:46:49,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:46:49,109 INFO L225 Difference]: With dead ends: 8066 [2020-10-14 07:46:49,110 INFO L226 Difference]: Without dead ends: 5704 [2020-10-14 07:46:49,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:46:49,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2020-10-14 07:46:49,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5155. [2020-10-14 07:46:49,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5155 states. [2020-10-14 07:46:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 7540 transitions. [2020-10-14 07:46:49,472 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 7540 transitions. Word has length 92 [2020-10-14 07:46:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:46:49,473 INFO L479 AbstractCegarLoop]: Abstraction has 5155 states and 7540 transitions. [2020-10-14 07:46:49,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:46:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 7540 transitions. [2020-10-14 07:46:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 07:46:49,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:46:49,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:46:49,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:46:49,484 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:46:49,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:46:49,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1036517370, now seen corresponding path program 1 times [2020-10-14 07:46:49,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:46:49,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112005994] [2020-10-14 07:46:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:46:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:49,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:49,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:49,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:49,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:51,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:54,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 07:46:54,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:46:54,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:46:54,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:54,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 07:46:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:46:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:54,669 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:46:54,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:46:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:54,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:54,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:46:54,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:46:54,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:54,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:46:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:54,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:46:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:54,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:54,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:46:54,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:46:54,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 07:46:54,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:54,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:54,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:46:54,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:54,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:46:54,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:54,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:46:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:54,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:54,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:46:54,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:54,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:46:54,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:54,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:46:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:54,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:54,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:46:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:54,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:54,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:54,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:46:54,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:54,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:54,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:54,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:54,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:54,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:54,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 07:46:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:54,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:46:54,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:54,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:54,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:54,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:46:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:54,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:54,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:46:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:54,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:54,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:46:54,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:46:54,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:54,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:46:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:54,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 07:46:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:54,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:54,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:46:54,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:46:54,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:46:54,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:46:54,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:46:54,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:46:54,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:46:54,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:46:54,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:46:54,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:46:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:46:54,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112005994] [2020-10-14 07:46:54,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:46:54,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:46:54,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604867413] [2020-10-14 07:46:54,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:46:54,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:46:54,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:46:54,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:46:54,860 INFO L87 Difference]: Start difference. First operand 5155 states and 7540 transitions. Second operand 7 states. [2020-10-14 07:46:55,092 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:46:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:46:56,434 INFO L93 Difference]: Finished difference Result 8330 states and 12009 transitions. [2020-10-14 07:46:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:46:56,435 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2020-10-14 07:46:56,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:46:56,511 INFO L225 Difference]: With dead ends: 8330 [2020-10-14 07:46:56,511 INFO L226 Difference]: Without dead ends: 5923 [2020-10-14 07:46:56,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:46:56,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2020-10-14 07:46:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5164. [2020-10-14 07:46:56,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5164 states. [2020-10-14 07:46:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 5164 states and 7549 transitions. [2020-10-14 07:46:56,822 INFO L78 Accepts]: Start accepts. Automaton has 5164 states and 7549 transitions. Word has length 95 [2020-10-14 07:46:56,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:46:56,822 INFO L479 AbstractCegarLoop]: Abstraction has 5164 states and 7549 transitions. [2020-10-14 07:46:56,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:46:56,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5164 states and 7549 transitions. [2020-10-14 07:46:56,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 07:46:56,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:46:56,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:46:56,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:46:56,831 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:46:56,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:46:56,832 INFO L82 PathProgramCache]: Analyzing trace with hash -83834562, now seen corresponding path program 1 times [2020-10-14 07:46:56,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:46:56,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370758439] [2020-10-14 07:46:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:46:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:46:56,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:56,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:56,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:56,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:46:57,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:01,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:01,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 07:47:01,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:47:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 07:47:01,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:01,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:47:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:47:01,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:02,041 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:47:02,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:02,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:02,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:02,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:02,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:02,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:02,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:02,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:02,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:02,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:02,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:02,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:02,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:02,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:47:02,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:47:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-14 07:47:02,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:02,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:02,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:02,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:47:02,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 07:47:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:02,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:47:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:02,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:02,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:02,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:02,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:47:02,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:02,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:02,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:47:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:02,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:02,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:02,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:02,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:02,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:02,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:02,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:02,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:02,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:02,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:02,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:47:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:02,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:47:02,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:02,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:47:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:02,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:02,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:47:02,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:02,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:02,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:02,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:02,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:02,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:47:02,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:02,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:02,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 07:47:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:02,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:02,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:02,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:02,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:02,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:47:02,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:02,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:02,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:02,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370758439] [2020-10-14 07:47:02,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:02,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:47:02,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419058910] [2020-10-14 07:47:02,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:47:02,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:02,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:47:02,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:47:02,514 INFO L87 Difference]: Start difference. First operand 5164 states and 7549 transitions. Second operand 10 states. [2020-10-14 07:47:02,698 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:47:03,032 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-14 07:47:03,197 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:47:03,370 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-14 07:47:03,532 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-14 07:47:03,723 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 07:47:07,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:07,077 INFO L93 Difference]: Finished difference Result 11225 states and 16540 transitions. [2020-10-14 07:47:07,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 07:47:07,078 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-14 07:47:07,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:07,118 INFO L225 Difference]: With dead ends: 11225 [2020-10-14 07:47:07,118 INFO L226 Difference]: Without dead ends: 6120 [2020-10-14 07:47:07,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:47:07,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2020-10-14 07:47:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 5704. [2020-10-14 07:47:07,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5704 states. [2020-10-14 07:47:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 8312 transitions. [2020-10-14 07:47:07,558 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 8312 transitions. Word has length 96 [2020-10-14 07:47:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:07,559 INFO L479 AbstractCegarLoop]: Abstraction has 5704 states and 8312 transitions. [2020-10-14 07:47:07,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:47:07,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 8312 transitions. [2020-10-14 07:47:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 07:47:07,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:07,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:07,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:47:07,568 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:07,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:07,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1629601743, now seen corresponding path program 1 times [2020-10-14 07:47:07,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:07,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026733433] [2020-10-14 07:47:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:07,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:07,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:07,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:07,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:07,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:08,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:10,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:12,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 07:47:12,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:47:12,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:47:12,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:12,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:47:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:47:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:12,759 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:47:12,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:12,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:12,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:12,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:12,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:12,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:12,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:12,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:12,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:47:12,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:47:12,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 07:47:12,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:12,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:12,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:12,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:12,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:47:12,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:12,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:47:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:12,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:12,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:12,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:12,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:12,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:12,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:12,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:12,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:12,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:12,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:47:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:12,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:12,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:12,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:12,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:47:12,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:12,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:12,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:12,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:12,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:12,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:12,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:47:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:12,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:12,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:47:12,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:47:12,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:12,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:47:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:13,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:47:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:13,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:13,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:47:13,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:13,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:47:13,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:13,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:47:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:13,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:13,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 07:47:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:13,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:13,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:13,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:13,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:13,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:13,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:13,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:13,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026733433] [2020-10-14 07:47:13,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:13,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:47:13,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15749553] [2020-10-14 07:47:13,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:47:13,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:13,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:47:13,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:47:13,103 INFO L87 Difference]: Start difference. First operand 5704 states and 8312 transitions. Second operand 8 states. [2020-10-14 07:47:13,310 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:47:13,590 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-14 07:47:17,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:17,155 INFO L93 Difference]: Finished difference Result 18644 states and 27656 transitions. [2020-10-14 07:47:17,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:47:17,158 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-10-14 07:47:17,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:17,214 INFO L225 Difference]: With dead ends: 18644 [2020-10-14 07:47:17,214 INFO L226 Difference]: Without dead ends: 13774 [2020-10-14 07:47:17,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:47:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13774 states. [2020-10-14 07:47:18,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13774 to 13114. [2020-10-14 07:47:18,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13114 states. [2020-10-14 07:47:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13114 states to 13114 states and 18974 transitions. [2020-10-14 07:47:18,092 INFO L78 Accepts]: Start accepts. Automaton has 13114 states and 18974 transitions. Word has length 96 [2020-10-14 07:47:18,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:18,092 INFO L479 AbstractCegarLoop]: Abstraction has 13114 states and 18974 transitions. [2020-10-14 07:47:18,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:47:18,093 INFO L276 IsEmpty]: Start isEmpty. Operand 13114 states and 18974 transitions. [2020-10-14 07:47:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 07:47:18,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:18,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:18,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:47:18,111 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:18,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:18,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1522863087, now seen corresponding path program 1 times [2020-10-14 07:47:18,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:18,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039636055] [2020-10-14 07:47:18,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:18,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:18,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:18,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:18,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:18,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:18,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:18,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:19,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 07:47:23,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:23,318 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:47:23,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:23,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:23,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:23,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:23,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:23,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:23,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:23,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:23,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:23,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:47:23,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:47:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 07:47:23,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:23,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:47:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 07:47:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:23,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:47:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:23,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:23,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:23,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:23,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:23,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:23,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:23,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:47:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:23,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:23,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:23,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:23,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:23,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:23,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:47:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:23,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:23,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:47:23,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:23,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:23,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:23,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:47:23,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:23,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:47:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:23,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:23,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:47:23,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:23,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:23,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:23,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:47:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:23,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:23,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 07:47:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:23,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:23,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:23,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:23,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:23,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:47:23,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:23,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:23,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:23,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039636055] [2020-10-14 07:47:23,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:23,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:47:23,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767665534] [2020-10-14 07:47:23,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:47:23,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:23,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:47:23,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:47:23,683 INFO L87 Difference]: Start difference. First operand 13114 states and 18974 transitions. Second operand 10 states. [2020-10-14 07:47:23,864 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:47:24,174 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:47:24,336 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-14 07:47:24,487 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-14 07:47:24,676 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 07:47:24,855 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-14 07:47:28,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:28,900 INFO L93 Difference]: Finished difference Result 16066 states and 23128 transitions. [2020-10-14 07:47:28,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 07:47:28,901 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-14 07:47:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:28,937 INFO L225 Difference]: With dead ends: 16066 [2020-10-14 07:47:28,937 INFO L226 Difference]: Without dead ends: 9680 [2020-10-14 07:47:28,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:47:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9680 states. [2020-10-14 07:47:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9680 to 9163. [2020-10-14 07:47:29,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9163 states. [2020-10-14 07:47:29,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9163 states to 9163 states and 13297 transitions. [2020-10-14 07:47:29,583 INFO L78 Accepts]: Start accepts. Automaton has 9163 states and 13297 transitions. Word has length 96 [2020-10-14 07:47:29,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:29,583 INFO L479 AbstractCegarLoop]: Abstraction has 9163 states and 13297 transitions. [2020-10-14 07:47:29,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:47:29,583 INFO L276 IsEmpty]: Start isEmpty. Operand 9163 states and 13297 transitions. [2020-10-14 07:47:29,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:47:29,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:29,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:29,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:47:29,593 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:29,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:29,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1240746659, now seen corresponding path program 1 times [2020-10-14 07:47:29,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:29,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597838690] [2020-10-14 07:47:29,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:29,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:29,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:29,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:29,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:30,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:33,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 07:47:34,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:47:34,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 07:47:34,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:34,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:47:34,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 07:47:34,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:34,798 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:47:34,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:34,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:34,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:34,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 07:47:34,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 07:47:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:47:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:47:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:34,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:34,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:34,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:34,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:34,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 07:47:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:34,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:34,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:34,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:34,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:34,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:47:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:47:34,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:34,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:47:34,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:35,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:47:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:35,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:35,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:35,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:47:35,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:35,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:35,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:35,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:35,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:47:35,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:47:35,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:35,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:47:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:35,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:35,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:47:35,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:35,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:35,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597838690] [2020-10-14 07:47:35,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:35,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:47:35,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112741115] [2020-10-14 07:47:35,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:47:35,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:35,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:47:35,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:47:35,059 INFO L87 Difference]: Start difference. First operand 9163 states and 13297 transitions. Second operand 9 states. [2020-10-14 07:47:35,253 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:47:35,458 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 07:47:35,682 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 07:47:36,389 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:47:40,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:40,126 INFO L93 Difference]: Finished difference Result 13457 states and 19393 transitions. [2020-10-14 07:47:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:47:40,128 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 07:47:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:40,167 INFO L225 Difference]: With dead ends: 13457 [2020-10-14 07:47:40,167 INFO L226 Difference]: Without dead ends: 11023 [2020-10-14 07:47:40,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:47:40,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11023 states. [2020-10-14 07:47:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11023 to 10381. [2020-10-14 07:47:40,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10381 states. [2020-10-14 07:47:40,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10381 states to 10381 states and 15017 transitions. [2020-10-14 07:47:40,870 INFO L78 Accepts]: Start accepts. Automaton has 10381 states and 15017 transitions. Word has length 97 [2020-10-14 07:47:40,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:40,870 INFO L479 AbstractCegarLoop]: Abstraction has 10381 states and 15017 transitions. [2020-10-14 07:47:40,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:47:40,870 INFO L276 IsEmpty]: Start isEmpty. Operand 10381 states and 15017 transitions. [2020-10-14 07:47:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:47:40,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:40,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:40,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:47:40,882 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:40,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:40,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1890419827, now seen corresponding path program 1 times [2020-10-14 07:47:40,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:40,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546686096] [2020-10-14 07:47:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:40,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:40,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:41,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:41,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:41,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 07:47:45,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:47:45,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 07:47:45,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:47:45,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:47:45,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,088 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:47:46,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:46,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:46,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:46,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:46,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:46,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:47:46,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:47:46,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 07:47:46,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:46,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:46,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:47:46,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:47:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:46,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:47:46,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:46,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:46,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:47:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:46,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:46,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:46,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:46,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:46,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:47:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:47:46,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:46,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:47:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:46,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:47:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:47:46,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:46,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:47:46,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:46,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:47:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:46,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:46,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:46,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:46,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:46,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:47:46,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:46,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:46,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:46,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:46,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:46,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:46,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546686096] [2020-10-14 07:47:46,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:46,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:47:46,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501883281] [2020-10-14 07:47:46,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:47:46,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:46,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:47:46,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:47:46,381 INFO L87 Difference]: Start difference. First operand 10381 states and 15017 transitions. Second operand 9 states. [2020-10-14 07:47:46,565 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:47:46,761 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 07:47:47,008 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 07:47:47,573 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:47:50,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:50,209 INFO L93 Difference]: Finished difference Result 14427 states and 20758 transitions. [2020-10-14 07:47:50,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:47:50,210 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 07:47:50,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:50,245 INFO L225 Difference]: With dead ends: 14427 [2020-10-14 07:47:50,245 INFO L226 Difference]: Without dead ends: 11461 [2020-10-14 07:47:50,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:47:50,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11461 states. [2020-10-14 07:47:50,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11461 to 10806. [2020-10-14 07:47:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10806 states. [2020-10-14 07:47:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 15592 transitions. [2020-10-14 07:47:50,847 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 15592 transitions. Word has length 97 [2020-10-14 07:47:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:50,848 INFO L479 AbstractCegarLoop]: Abstraction has 10806 states and 15592 transitions. [2020-10-14 07:47:50,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:47:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 15592 transitions. [2020-10-14 07:47:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 07:47:50,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:50,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:50,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:47:50,857 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:50,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:50,857 INFO L82 PathProgramCache]: Analyzing trace with hash -872345876, now seen corresponding path program 1 times [2020-10-14 07:47:50,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:50,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842300081] [2020-10-14 07:47:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:50,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:50,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:50,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:50,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:52,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:54,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:54,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 07:47:54,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:47:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3933 [2020-10-14 07:47:54,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:54,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 07:47:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 07:47:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:54,965 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:47:54,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:54,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:54,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:54,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:54,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:54,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:54,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:54,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:54,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:54,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:55,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:55,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:47:55,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:47:55,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 07:47:55,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:55,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:47:55,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:55,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:47:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:55,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:55,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:55,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:55,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:55,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:47:55,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:55,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:55,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:47:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:55,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:55,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:55,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:55,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:55,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:55,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:55,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:55,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:55,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:47:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:55,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:55,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:55,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:47:55,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:55,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:55,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:55,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:55,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:55,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:47:55,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:55,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:55,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:47:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:55,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:55,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:55,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:47:55,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:55,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:55,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:47:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:55,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:55,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:47:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:55,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:55,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:55,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:55,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:55,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:47:55,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:55,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:55,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:55,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842300081] [2020-10-14 07:47:55,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:55,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:47:55,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947247599] [2020-10-14 07:47:55,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:47:55,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:55,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:47:55,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:47:55,178 INFO L87 Difference]: Start difference. First operand 10806 states and 15592 transitions. Second operand 8 states. [2020-10-14 07:47:55,355 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:47:55,674 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-14 07:47:59,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:59,442 INFO L93 Difference]: Finished difference Result 31301 states and 45911 transitions. [2020-10-14 07:47:59,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:47:59,443 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-10-14 07:47:59,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:59,514 INFO L225 Difference]: With dead ends: 31301 [2020-10-14 07:47:59,514 INFO L226 Difference]: Without dead ends: 22647 [2020-10-14 07:47:59,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:47:59,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22647 states. [2020-10-14 07:48:00,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22647 to 22101. [2020-10-14 07:48:00,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22101 states. [2020-10-14 07:48:00,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22101 states to 22101 states and 31407 transitions. [2020-10-14 07:48:00,585 INFO L78 Accepts]: Start accepts. Automaton has 22101 states and 31407 transitions. Word has length 98 [2020-10-14 07:48:00,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:00,585 INFO L479 AbstractCegarLoop]: Abstraction has 22101 states and 31407 transitions. [2020-10-14 07:48:00,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:48:00,586 INFO L276 IsEmpty]: Start isEmpty. Operand 22101 states and 31407 transitions. [2020-10-14 07:48:00,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 07:48:00,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:00,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:00,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 07:48:00,604 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:00,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:00,604 INFO L82 PathProgramCache]: Analyzing trace with hash -33312214, now seen corresponding path program 1 times [2020-10-14 07:48:00,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:00,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016244754] [2020-10-14 07:48:00,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:00,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:00,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:00,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:00,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:00,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:01,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:05,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:05,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 07:48:05,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:48:05,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 07:48:05,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:05,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:05,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:05,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:05,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 07:48:05,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:05,791 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:48:05,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:05,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:05,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:05,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:05,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:05,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:48:05,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:05,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:05,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:05,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:05,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:05,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:05,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:05,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:05,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:48:05,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:48:05,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 07:48:05,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:05,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:48:05,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:05,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:48:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:05,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:05,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:05,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:05,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:05,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:05,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:05,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:05,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:48:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:05,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:05,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:05,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:05,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:05,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:05,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:05,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:48:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:06,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:06,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:06,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:48:06,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:06,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:48:06,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:06,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:48:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:06,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:06,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:48:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:06,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:48:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:06,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:06,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:48:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:06,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:06,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:06,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:06,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:06,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:06,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:06,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:06,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:06,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:06,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:06,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016244754] [2020-10-14 07:48:06,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:06,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:48:06,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024337447] [2020-10-14 07:48:06,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:48:06,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:06,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:48:06,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:48:06,086 INFO L87 Difference]: Start difference. First operand 22101 states and 31407 transitions. Second operand 10 states. [2020-10-14 07:48:06,269 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:48:06,644 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:48:06,821 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-14 07:48:07,015 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 07:48:07,175 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-14 07:48:07,365 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-14 07:48:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:10,985 INFO L93 Difference]: Finished difference Result 31997 states and 45428 transitions. [2020-10-14 07:48:10,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 07:48:10,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 98 [2020-10-14 07:48:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:11,047 INFO L225 Difference]: With dead ends: 31997 [2020-10-14 07:48:11,047 INFO L226 Difference]: Without dead ends: 17689 [2020-10-14 07:48:11,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:48:11,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17689 states. [2020-10-14 07:48:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17689 to 17249. [2020-10-14 07:48:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17249 states. [2020-10-14 07:48:12,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17249 states to 17249 states and 24611 transitions. [2020-10-14 07:48:12,116 INFO L78 Accepts]: Start accepts. Automaton has 17249 states and 24611 transitions. Word has length 98 [2020-10-14 07:48:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:12,117 INFO L479 AbstractCegarLoop]: Abstraction has 17249 states and 24611 transitions. [2020-10-14 07:48:12,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:48:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 17249 states and 24611 transitions. [2020-10-14 07:48:12,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-14 07:48:12,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:12,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:12,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 07:48:12,129 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:12,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:12,130 INFO L82 PathProgramCache]: Analyzing trace with hash -263805928, now seen corresponding path program 1 times [2020-10-14 07:48:12,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:12,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221864281] [2020-10-14 07:48:12,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:12,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:12,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:12,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 07:48:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:17,316 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:48:17,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:17,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:17,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:17,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:17,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:17,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:17,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:17,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:17,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:17,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 07:48:17,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:17,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 07:48:17,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:17,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:48:17,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:17,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:48:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:17,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:17,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:17,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:17,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:17,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:17,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:17,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:17,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:17,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:17,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:17,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 07:48:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:17,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:17,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:17,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:17,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:48:17,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:17,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:17,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:48:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:17,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:17,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:48:17,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:17,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:48:17,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:17,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:48:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:48:17,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:17,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 07:48:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:17,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:17,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:48:17,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:17,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:17,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:17,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:48:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:17,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:17,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 07:48:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:17,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:17,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:17,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:17,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:17,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:17,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:17,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221864281] [2020-10-14 07:48:17,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:17,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:48:17,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188523076] [2020-10-14 07:48:17,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:48:17,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:17,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:48:17,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:48:17,576 INFO L87 Difference]: Start difference. First operand 17249 states and 24611 transitions. Second operand 9 states. [2020-10-14 07:48:17,767 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:48:17,977 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 07:48:18,183 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 07:48:18,876 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:48:22,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:22,002 INFO L93 Difference]: Finished difference Result 24811 states and 35183 transitions. [2020-10-14 07:48:22,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:48:22,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-14 07:48:22,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:22,050 INFO L225 Difference]: With dead ends: 24811 [2020-10-14 07:48:22,050 INFO L226 Difference]: Without dead ends: 19928 [2020-10-14 07:48:22,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:48:22,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19928 states. [2020-10-14 07:48:23,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19928 to 19319. [2020-10-14 07:48:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19319 states. [2020-10-14 07:48:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19319 states to 19319 states and 27436 transitions. [2020-10-14 07:48:23,129 INFO L78 Accepts]: Start accepts. Automaton has 19319 states and 27436 transitions. Word has length 99 [2020-10-14 07:48:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:23,129 INFO L479 AbstractCegarLoop]: Abstraction has 19319 states and 27436 transitions. [2020-10-14 07:48:23,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:48:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 19319 states and 27436 transitions. [2020-10-14 07:48:23,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-14 07:48:23,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:23,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:23,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 07:48:23,145 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:23,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:23,145 INFO L82 PathProgramCache]: Analyzing trace with hash -2049697794, now seen corresponding path program 1 times [2020-10-14 07:48:23,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:23,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767402653] [2020-10-14 07:48:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:23,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:23,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:23,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:23,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:28,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:28,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 07:48:28,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:48:28,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 07:48:28,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:28,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:48:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 07:48:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:48:28,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:28,373 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:48:28,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:28,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:28,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:28,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:28,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:28,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:28,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:28,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:28,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:28,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:28,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:28,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:28,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:28,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:28,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:28,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:48:28,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:28,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:48:28,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:28,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:28,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:28,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:28,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:48:28,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:28,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:48:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:28,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:28,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:28,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:28,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:28,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:28,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:28,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:28,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:28,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:28,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:28,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:28,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:48:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:28,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:28,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:28,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:28,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:48:28,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:28,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:48:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:48:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:48:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:28,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:48:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:28,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:28,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:28,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:48:28,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:28,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:48:28,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:28,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:28,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:28,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:48:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:28,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:28,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 07:48:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:28,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:28,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:28,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:48:28,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:28,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:28,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:28,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:48:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:28,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:28,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 07:48:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:28,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:28,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:28,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:28,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:28,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:28,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:28,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:28,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:28,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:28,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:28,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:28,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:28,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767402653] [2020-10-14 07:48:28,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:28,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:48:28,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012169492] [2020-10-14 07:48:28,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:48:28,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:28,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:48:28,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:48:28,584 INFO L87 Difference]: Start difference. First operand 19319 states and 27436 transitions. Second operand 9 states. [2020-10-14 07:48:28,774 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:48:29,669 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-14 07:48:30,790 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-14 07:48:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:32,185 INFO L93 Difference]: Finished difference Result 44507 states and 63670 transitions. [2020-10-14 07:48:32,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:48:32,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-14 07:48:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:32,249 INFO L225 Difference]: With dead ends: 44507 [2020-10-14 07:48:32,250 INFO L226 Difference]: Without dead ends: 27527 [2020-10-14 07:48:32,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:48:32,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27527 states. [2020-10-14 07:48:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27527 to 26016. [2020-10-14 07:48:33,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26016 states. [2020-10-14 07:48:33,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26016 states to 26016 states and 35598 transitions. [2020-10-14 07:48:33,526 INFO L78 Accepts]: Start accepts. Automaton has 26016 states and 35598 transitions. Word has length 99 [2020-10-14 07:48:33,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:33,526 INFO L479 AbstractCegarLoop]: Abstraction has 26016 states and 35598 transitions. [2020-10-14 07:48:33,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:48:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand 26016 states and 35598 transitions. [2020-10-14 07:48:33,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 07:48:33,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:33,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:33,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 07:48:33,539 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:33,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:33,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1341179656, now seen corresponding path program 1 times [2020-10-14 07:48:33,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:33,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695798526] [2020-10-14 07:48:33,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:33,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:33,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:33,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:33,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:33,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:34,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:38,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:38,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 07:48:38,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:48:38,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:48:38,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:38,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:48:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 07:48:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 07:48:38,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:38,942 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:48:38,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:38,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:38,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:38,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:38,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:38,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:38,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:38,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:38,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:38,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:38,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:39,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:39,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:48:39,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:48:39,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 07:48:39,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:39,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:39,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:39,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:39,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 07:48:39,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:39,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:48:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:39,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:39,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:39,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:39,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:39,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:39,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:39,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:39,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:39,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:48:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:39,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:39,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:39,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:48:39,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:39,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:48:39,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:39,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:48:39,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:39,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 07:48:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:39,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:39,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:39,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:48:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:48:39,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:39,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 07:48:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:39,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 07:48:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:39,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:39,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:39,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:48:39,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:39,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:48:39,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:39,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:48:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:48:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:48:39,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:39,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 07:48:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:39,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:39,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:39,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:39,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:39,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:48:39,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:39,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:39,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:39,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:39,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:39,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:39,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695798526] [2020-10-14 07:48:39,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:39,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:48:39,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473539768] [2020-10-14 07:48:39,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:48:39,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:39,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:48:39,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:48:39,255 INFO L87 Difference]: Start difference. First operand 26016 states and 35598 transitions. Second operand 8 states. [2020-10-14 07:48:39,445 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:48:41,556 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-14 07:48:42,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:42,948 INFO L93 Difference]: Finished difference Result 45970 states and 63410 transitions. [2020-10-14 07:48:42,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:48:42,949 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2020-10-14 07:48:42,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:43,037 INFO L225 Difference]: With dead ends: 45970 [2020-10-14 07:48:43,037 INFO L226 Difference]: Without dead ends: 33411 [2020-10-14 07:48:43,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:48:43,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33411 states. [2020-10-14 07:48:44,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33411 to 32681. [2020-10-14 07:48:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32681 states. [2020-10-14 07:48:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32681 states to 32681 states and 44567 transitions. [2020-10-14 07:48:44,797 INFO L78 Accepts]: Start accepts. Automaton has 32681 states and 44567 transitions. Word has length 102 [2020-10-14 07:48:44,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:44,797 INFO L479 AbstractCegarLoop]: Abstraction has 32681 states and 44567 transitions. [2020-10-14 07:48:44,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:48:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 32681 states and 44567 transitions. [2020-10-14 07:48:44,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 07:48:44,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:44,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:44,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 07:48:44,805 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:44,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:44,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1199925237, now seen corresponding path program 1 times [2020-10-14 07:48:44,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:44,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815393791] [2020-10-14 07:48:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:44,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:44,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:44,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:44,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:44,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:49,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:49,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 07:48:49,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:48:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 07:48:49,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:49,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:48:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 07:48:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:48:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:50,002 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:48:50,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:50,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:50,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:50,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:48:50,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:50,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:50,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:50,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:50,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:48:50,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:48:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 07:48:50,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:50,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:48:50,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:50,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:48:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:50,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:50,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:50,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:50,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:50,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:50,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:50,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:50,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:50,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:50,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:50,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:48:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:50,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:50,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:48:50,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:50,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:50,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:48:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:50,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 07:48:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:50,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:50,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:48:50,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:50,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:48:50,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:50,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:48:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:48:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:48:50,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:50,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 07:48:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:50,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:50,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:48:50,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:50,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:50,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:48:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:50,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:50,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 07:48:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:50,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:50,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:50,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:50,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:50,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:50,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:50,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:50,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:50,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:50,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:50,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:50,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815393791] [2020-10-14 07:48:50,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:50,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:48:50,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159251304] [2020-10-14 07:48:50,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:48:50,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:50,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:48:50,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:48:50,330 INFO L87 Difference]: Start difference. First operand 32681 states and 44567 transitions. Second operand 8 states. [2020-10-14 07:48:50,516 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:48:52,330 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-14 07:48:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:54,511 INFO L93 Difference]: Finished difference Result 54898 states and 75432 transitions. [2020-10-14 07:48:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:48:54,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-10-14 07:48:54,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:54,606 INFO L225 Difference]: With dead ends: 54898 [2020-10-14 07:48:54,606 INFO L226 Difference]: Without dead ends: 38682 [2020-10-14 07:48:54,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:48:54,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38682 states. [2020-10-14 07:48:56,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38682 to 38205. [2020-10-14 07:48:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38205 states. [2020-10-14 07:48:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38205 states to 38205 states and 52014 transitions. [2020-10-14 07:48:56,845 INFO L78 Accepts]: Start accepts. Automaton has 38205 states and 52014 transitions. Word has length 103 [2020-10-14 07:48:56,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:56,845 INFO L479 AbstractCegarLoop]: Abstraction has 38205 states and 52014 transitions. [2020-10-14 07:48:56,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:48:56,845 INFO L276 IsEmpty]: Start isEmpty. Operand 38205 states and 52014 transitions. [2020-10-14 07:48:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 07:48:56,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:56,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:56,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 07:48:56,851 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:56,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:56,851 INFO L82 PathProgramCache]: Analyzing trace with hash 905410664, now seen corresponding path program 1 times [2020-10-14 07:48:56,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:56,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983362792] [2020-10-14 07:48:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:56,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:56,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:56,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:00,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:00,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:49:00,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:49:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4078 [2020-10-14 07:49:00,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:00,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:49:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 07:49:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:49:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:01,110 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:49:01,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:01,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:01,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:01,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:01,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:01,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:01,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:01,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:01,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:49:01,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:49:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 07:49:01,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:01,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:49:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:49:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:49:01,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:01,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:49:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:01,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:01,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:01,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:01,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:49:01,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:01,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:01,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:01,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:49:01,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:01,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:01,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:49:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:01,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:01,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:49:01,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:49:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:01,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:49:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:01,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:01,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 07:49:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:01,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:01,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:49:01,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:01,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:49:01,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:01,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:01,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:01,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:49:01,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:01,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:01,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:49:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:01,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:01,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:49:01,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:01,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:01,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:49:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:01,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 07:49:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:01,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:01,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:01,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:01,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:01,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:01,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:01,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:01,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983362792] [2020-10-14 07:49:01,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:01,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:49:01,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433895824] [2020-10-14 07:49:01,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:49:01,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:01,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:49:01,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:49:01,396 INFO L87 Difference]: Start difference. First operand 38205 states and 52014 transitions. Second operand 8 states. [2020-10-14 07:49:01,605 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-14 07:49:01,813 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 07:49:04,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:49:04,970 INFO L93 Difference]: Finished difference Result 70267 states and 95651 transitions. [2020-10-14 07:49:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:49:04,971 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-10-14 07:49:04,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:49:05,043 INFO L225 Difference]: With dead ends: 70267 [2020-10-14 07:49:05,044 INFO L226 Difference]: Without dead ends: 32807 [2020-10-14 07:49:05,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:49:05,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32807 states. [2020-10-14 07:49:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32807 to 32399. [2020-10-14 07:49:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32399 states. [2020-10-14 07:49:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32399 states to 32399 states and 44145 transitions. [2020-10-14 07:49:06,782 INFO L78 Accepts]: Start accepts. Automaton has 32399 states and 44145 transitions. Word has length 104 [2020-10-14 07:49:06,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:49:06,783 INFO L479 AbstractCegarLoop]: Abstraction has 32399 states and 44145 transitions. [2020-10-14 07:49:06,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:49:06,783 INFO L276 IsEmpty]: Start isEmpty. Operand 32399 states and 44145 transitions. [2020-10-14 07:49:06,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 07:49:06,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:49:06,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:49:06,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 07:49:06,789 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:49:06,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:49:06,789 INFO L82 PathProgramCache]: Analyzing trace with hash 344915143, now seen corresponding path program 1 times [2020-10-14 07:49:06,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:49:06,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168515022] [2020-10-14 07:49:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:49:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:06,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:06,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:06,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:11,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:11,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 07:49:11,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:49:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 07:49:11,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:11,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:49:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 07:49:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 07:49:11,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:12,015 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:49:12,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:12,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:12,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:12,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:12,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:12,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:49:12,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:12,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:12,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:12,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:12,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:12,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:12,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 07:49:12,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 07:49:12,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:12,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:12,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 07:49:12,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:12,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:49:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:12,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:12,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:12,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:12,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:12,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:49:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:12,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:12,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:12,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:49:12,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:12,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:49:12,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:12,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:49:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:49:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:49:12,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:12,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:49:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:12,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:12,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:12,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:49:12,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:12,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:49:12,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:12,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:49:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:12,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:12,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 07:49:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:12,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:12,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:12,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:49:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:12,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:12,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:49:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:12,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:49:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:12,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:12,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:12,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:12,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:12,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:12,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:12,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:12,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168515022] [2020-10-14 07:49:12,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:12,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:49:12,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834657017] [2020-10-14 07:49:12,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:49:12,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:12,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:49:12,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:49:12,255 INFO L87 Difference]: Start difference. First operand 32399 states and 44145 transitions. Second operand 8 states. [2020-10-14 07:49:12,456 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-14 07:49:13,739 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-14 07:49:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:49:16,809 INFO L93 Difference]: Finished difference Result 57057 states and 78974 transitions. [2020-10-14 07:49:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:49:16,813 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2020-10-14 07:49:16,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:49:16,915 INFO L225 Difference]: With dead ends: 57057 [2020-10-14 07:49:16,915 INFO L226 Difference]: Without dead ends: 37091 [2020-10-14 07:49:16,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:49:16,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37091 states. [2020-10-14 07:49:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37091 to 36105. [2020-10-14 07:49:19,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36105 states. [2020-10-14 07:49:19,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36105 states to 36105 states and 49314 transitions. [2020-10-14 07:49:19,144 INFO L78 Accepts]: Start accepts. Automaton has 36105 states and 49314 transitions. Word has length 105 [2020-10-14 07:49:19,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:49:19,144 INFO L479 AbstractCegarLoop]: Abstraction has 36105 states and 49314 transitions. [2020-10-14 07:49:19,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:49:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 36105 states and 49314 transitions. [2020-10-14 07:49:19,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 07:49:19,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:49:19,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:49:19,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 07:49:19,147 INFO L427 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:49:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:49:19,147 INFO L82 PathProgramCache]: Analyzing trace with hash -674609589, now seen corresponding path program 1 times [2020-10-14 07:49:19,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:49:19,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707683022] [2020-10-14 07:49:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:49:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:19,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:19,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:19,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:20,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:20,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 07:49:20,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:49:20,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1524 [2020-10-14 07:49:20,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:20,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:49:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:49:20,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:21,080 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 07:49:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:21,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:21,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:21,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:21,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:21,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:21,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:21,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:21,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:21,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:21,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:21,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:21,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:21,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:49:21,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:49:21,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 07:49:21,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:21,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:49:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:49:21,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:21,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:49:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:21,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:21,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:21,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:21,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:21,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:49:21,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:21,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:49:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:21,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:21,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:49:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:21,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:21,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:21,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:49:21,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:21,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:49:21,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:21,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:49:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:21,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:21,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 07:49:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:21,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:21,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:49:21,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:21,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:21,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:21,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:49:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:21,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:21,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:49:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:21,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:21,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:21,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:49:21,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:21,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:49:21,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:21,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:49:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:21,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:21,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:49:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:21,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:21,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:21,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:21,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:21,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:21,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:21,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:21,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:21,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:21,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707683022] [2020-10-14 07:49:21,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:21,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:49:21,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726778798] [2020-10-14 07:49:21,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:49:21,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:21,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:49:21,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:49:21,281 INFO L87 Difference]: Start difference. First operand 36105 states and 49314 transitions. Second operand 7 states. [2020-10-14 07:49:21,491 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 07:49:24,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:49:24,571 INFO L93 Difference]: Finished difference Result 62540 states and 85310 transitions. [2020-10-14 07:49:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:49:24,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-14 07:49:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:49:24,668 INFO L225 Difference]: With dead ends: 62540 [2020-10-14 07:49:24,668 INFO L226 Difference]: Without dead ends: 36718 [2020-10-14 07:49:24,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:49:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36718 states.