/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=NARROWEST --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-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:16:40,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:16:40,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:16:40,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:16:40,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:16:41,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:16:41,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:16:41,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:16:41,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:16:41,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:16:41,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:16:41,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:16:41,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:16:41,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:16:41,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:16:41,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:16:41,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:16:41,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:16:41,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:16:41,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:16:41,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:16:41,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:16:41,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:16:41,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:16:41,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:16:41,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:16:41,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:16:41,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:16:41,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:16:41,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:16:41,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:16:41,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:16:41,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:16:41,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:16:41,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:16:41,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:16:41,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:16:41,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:16:41,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:16:41,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:16:41,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:16:41,079 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 [2020-10-13 14:16:41,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:16:41,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:16:41,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:16:41,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:16:41,129 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:16:41,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:16:41,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:16:41,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:16:41,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:16:41,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:16:41,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:16:41,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:16:41,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:16:41,130 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:16:41,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:16:41,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:16:41,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:16:41,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:16:41,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:16:41,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:16:41,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:16:41,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:16:41,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:16:41,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:16:41,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:16:41,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:16:41,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:16:41,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:16:41,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:16:41,133 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 14:16:41,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:16:41,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:16:41,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:16:41,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:16:41,428 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:16:41,429 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-13 14:16:41,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cee958e24/39f6850eba34493da461c4fbfc90ae4d/FLAG09f9c598b [2020-10-13 14:16:42,243 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:16:42,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-13 14:16:42,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cee958e24/39f6850eba34493da461c4fbfc90ae4d/FLAG09f9c598b [2020-10-13 14:16:42,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cee958e24/39f6850eba34493da461c4fbfc90ae4d [2020-10-13 14:16:42,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:16:42,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:16:42,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:16:42,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:16:42,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:16:42,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:16:42" (1/1) ... [2020-10-13 14:16:42,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510a549d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:42, skipping insertion in model container [2020-10-13 14:16:42,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:16:42" (1/1) ... [2020-10-13 14:16:42,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:16:42,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:16:43,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:16:43,474 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:16:43,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:16:44,019 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:16:44,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44 WrapperNode [2020-10-13 14:16:44,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:16:44,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:16:44,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:16:44,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:16:44,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (1/1) ... [2020-10-13 14:16:44,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (1/1) ... [2020-10-13 14:16:44,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (1/1) ... [2020-10-13 14:16:44,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (1/1) ... [2020-10-13 14:16:44,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (1/1) ... [2020-10-13 14:16:44,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (1/1) ... [2020-10-13 14:16:44,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (1/1) ... [2020-10-13 14:16:44,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:16:44,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:16:44,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:16:44,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:16:44,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (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 [2020-10-13 14:16:44,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:16:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:16:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:16:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:16:44,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:16:44,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:16:44,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:16:44,286 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:16:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:16:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:16:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:16:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:16:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:16:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:16:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:16:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 14:16:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 14:16:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:16:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:16:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:16:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:16:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:16:46,464 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:16:46,464 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:16:46,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:16:46 BoogieIcfgContainer [2020-10-13 14:16:46,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:16:46,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:16:46,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:16:46,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:16:46,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:16:42" (1/3) ... [2020-10-13 14:16:46,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2aac08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:16:46, skipping insertion in model container [2020-10-13 14:16:46,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:16:44" (2/3) ... [2020-10-13 14:16:46,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2aac08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:16:46, skipping insertion in model container [2020-10-13 14:16:46,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:16:46" (3/3) ... [2020-10-13 14:16:46,483 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-13 14:16:46,493 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:16:46,502 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-13 14:16:46,517 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-13 14:16:46,547 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:16:46,547 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:16:46,547 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:16:46,547 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:16:46,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:16:46,548 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:16:46,548 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:16:46,548 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:16:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states. [2020-10-13 14:16:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-13 14:16:46,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:16:46,604 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] [2020-10-13 14:16:46,605 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:16:46,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:16:46,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1881396577, now seen corresponding path program 1 times [2020-10-13 14:16:46,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:16:46,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18412699] [2020-10-13 14:16:46,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:16:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:47,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:47,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:47,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:47,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:47,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:48,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:50,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:50,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:52,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:52,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 14:16:52,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:16:52,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 14:16:52,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:16:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:16:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 14:16:52,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 14:16:52,941 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:16:52,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:16:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:16:52,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:16:53,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:16:53,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:16:53,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:16:53,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 14:16:53,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:16:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:16:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:16:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:16:53,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:16:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:16:53,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18412699] [2020-10-13 14:16:53,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:16:53,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:16:53,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721389228] [2020-10-13 14:16:53,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:16:53,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:16:53,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:16:53,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:16:53,100 INFO L87 Difference]: Start difference. First operand 634 states. Second operand 7 states. [2020-10-13 14:16:53,798 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-13 14:17:00,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:00,895 INFO L93 Difference]: Finished difference Result 2160 states and 3577 transitions. [2020-10-13 14:17:00,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:00,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-13 14:17:00,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:00,940 INFO L225 Difference]: With dead ends: 2160 [2020-10-13 14:17:00,940 INFO L226 Difference]: Without dead ends: 1724 [2020-10-13 14:17:00,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:17:00,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2020-10-13 14:17:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1025. [2020-10-13 14:17:01,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-10-13 14:17:01,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1395 transitions. [2020-10-13 14:17:01,077 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1395 transitions. Word has length 76 [2020-10-13 14:17:01,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:01,078 INFO L479 AbstractCegarLoop]: Abstraction has 1025 states and 1395 transitions. [2020-10-13 14:17:01,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:17:01,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1395 transitions. [2020-10-13 14:17:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 14:17:01,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:01,085 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] [2020-10-13 14:17:01,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:17:01,086 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:01,087 INFO L82 PathProgramCache]: Analyzing trace with hash -947425987, now seen corresponding path program 1 times [2020-10-13 14:17:01,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:01,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946469941] [2020-10-13 14:17:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:01,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:01,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:06,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:06,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 14:17:06,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 14:17:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 14:17:06,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:17:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:17:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 14:17:06,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:06,804 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:17:06,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:06,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:06,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:06,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:06,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:06,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 14:17:06,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:06,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:17:06,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946469941] [2020-10-13 14:17:06,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:06,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:17:06,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655139600] [2020-10-13 14:17:06,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:17:06,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:06,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:17:06,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:17:06,859 INFO L87 Difference]: Start difference. First operand 1025 states and 1395 transitions. Second operand 7 states. [2020-10-13 14:17:07,428 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-13 14:17:11,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:11,653 INFO L93 Difference]: Finished difference Result 4341 states and 6137 transitions. [2020-10-13 14:17:11,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:11,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-13 14:17:11,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:11,677 INFO L225 Difference]: With dead ends: 4341 [2020-10-13 14:17:11,677 INFO L226 Difference]: Without dead ends: 3520 [2020-10-13 14:17:11,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:17:11,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2020-10-13 14:17:11,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 2112. [2020-10-13 14:17:11,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2112 states. [2020-10-13 14:17:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 3004 transitions. [2020-10-13 14:17:11,815 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 3004 transitions. Word has length 77 [2020-10-13 14:17:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:11,815 INFO L479 AbstractCegarLoop]: Abstraction has 2112 states and 3004 transitions. [2020-10-13 14:17:11,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:17:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 3004 transitions. [2020-10-13 14:17:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:17:11,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:11,823 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] [2020-10-13 14:17:11,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:17:11,824 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:11,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:11,824 INFO L82 PathProgramCache]: Analyzing trace with hash -407579335, now seen corresponding path program 1 times [2020-10-13 14:17:11,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:11,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705203290] [2020-10-13 14:17:11,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:11,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:12,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:12,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:12,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:13,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:15,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:15,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:15,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:16,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:16,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:16,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:16,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:17:16,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 14:17:16,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 14:17:16,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:17:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:17:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 14:17:16,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:17:17,543 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:17:17,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:17,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:17,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:17,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:17,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:17,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 14:17:17,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:17,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:17:17,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705203290] [2020-10-13 14:17:17,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:17,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:17:17,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138388304] [2020-10-13 14:17:17,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:17:17,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:17,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:17:17,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:17:17,617 INFO L87 Difference]: Start difference. First operand 2112 states and 3004 transitions. Second operand 7 states. [2020-10-13 14:17:18,131 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-13 14:17:21,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:21,577 INFO L93 Difference]: Finished difference Result 6065 states and 8737 transitions. [2020-10-13 14:17:21,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:21,577 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-13 14:17:21,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:21,603 INFO L225 Difference]: With dead ends: 6065 [2020-10-13 14:17:21,603 INFO L226 Difference]: Without dead ends: 5211 [2020-10-13 14:17:21,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:17:21,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5211 states. [2020-10-13 14:17:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 2607. [2020-10-13 14:17:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2607 states. [2020-10-13 14:17:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3748 transitions. [2020-10-13 14:17:21,762 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3748 transitions. Word has length 78 [2020-10-13 14:17:21,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:21,764 INFO L479 AbstractCegarLoop]: Abstraction has 2607 states and 3748 transitions. [2020-10-13 14:17:21,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:17:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3748 transitions. [2020-10-13 14:17:21,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:17:21,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:21,773 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] [2020-10-13 14:17:21,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:17:21,774 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:21,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:21,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1510875425, now seen corresponding path program 1 times [2020-10-13 14:17:21,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:21,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783439810] [2020-10-13 14:17:21,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:21,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:21,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:22,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:22,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:22,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:22,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:23,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:23,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:23,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:23,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:26,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:26,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:17:26,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 14:17:26,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:17:26,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:26,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:17:26,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:17:26,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 14:17:26,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:27,514 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:17:27,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:27,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:27,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:27,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:27,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:27,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 14:17:27,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:27,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:17:27,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783439810] [2020-10-13 14:17:27,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:27,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:17:27,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764403871] [2020-10-13 14:17:27,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:17:27,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:27,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:17:27,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:17:27,566 INFO L87 Difference]: Start difference. First operand 2607 states and 3748 transitions. Second operand 7 states. [2020-10-13 14:17:28,122 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-13 14:17:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:32,991 INFO L93 Difference]: Finished difference Result 5583 states and 8008 transitions. [2020-10-13 14:17:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:32,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-13 14:17:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:33,013 INFO L225 Difference]: With dead ends: 5583 [2020-10-13 14:17:33,013 INFO L226 Difference]: Without dead ends: 4318 [2020-10-13 14:17:33,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:17:33,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2020-10-13 14:17:33,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 2327. [2020-10-13 14:17:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2327 states. [2020-10-13 14:17:33,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3318 transitions. [2020-10-13 14:17:33,151 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3318 transitions. Word has length 78 [2020-10-13 14:17:33,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:33,151 INFO L479 AbstractCegarLoop]: Abstraction has 2327 states and 3318 transitions. [2020-10-13 14:17:33,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:17:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3318 transitions. [2020-10-13 14:17:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:17:33,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:33,157 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] [2020-10-13 14:17:33,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:17:33,158 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:33,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:33,158 INFO L82 PathProgramCache]: Analyzing trace with hash -267797277, now seen corresponding path program 1 times [2020-10-13 14:17:33,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:33,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643754788] [2020-10-13 14:17:33,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:33,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:33,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:33,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:33,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:33,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:34,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:34,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:34,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:34,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:35,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:37,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:37,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:37,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:37,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:37,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:37,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:38,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:38,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:17:38,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:17:38,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:17:38,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:17:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:17:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 14:17:38,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:38,987 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:17:38,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:39,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:39,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:39,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:39,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:39,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 14:17:39,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:39,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:17:39,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:17:39,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643754788] [2020-10-13 14:17:39,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:39,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:17:39,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324371049] [2020-10-13 14:17:39,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:17:39,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:39,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:17:39,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:17:39,097 INFO L87 Difference]: Start difference. First operand 2327 states and 3318 transitions. Second operand 7 states. [2020-10-13 14:17:39,855 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-13 14:17:43,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:43,186 INFO L93 Difference]: Finished difference Result 6404 states and 9254 transitions. [2020-10-13 14:17:43,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:43,186 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-13 14:17:43,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:43,211 INFO L225 Difference]: With dead ends: 6404 [2020-10-13 14:17:43,212 INFO L226 Difference]: Without dead ends: 5457 [2020-10-13 14:17:43,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:17:43,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5457 states. [2020-10-13 14:17:43,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5457 to 2790. [2020-10-13 14:17:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2790 states. [2020-10-13 14:17:43,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 4002 transitions. [2020-10-13 14:17:43,383 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 4002 transitions. Word has length 78 [2020-10-13 14:17:43,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:43,384 INFO L479 AbstractCegarLoop]: Abstraction has 2790 states and 4002 transitions. [2020-10-13 14:17:43,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:17:43,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 4002 transitions. [2020-10-13 14:17:43,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:17:43,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:43,389 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] [2020-10-13 14:17:43,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:17:43,389 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:43,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:43,390 INFO L82 PathProgramCache]: Analyzing trace with hash 835498813, now seen corresponding path program 1 times [2020-10-13 14:17:43,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:43,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653123971] [2020-10-13 14:17:43,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:43,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:43,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:43,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:43,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:43,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:46,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:46,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:46,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:46,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:46,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:47,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:47,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:47,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:48,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:48,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:48,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:48,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:48,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:17:48,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:17:48,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 14:17:48,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:48,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:17:48,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:17:48,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 14:17:48,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:49,029 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:17:49,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:49,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:49,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:49,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:49,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:49,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:17:49,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:49,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:49,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:49,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:49,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:17:49,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653123971] [2020-10-13 14:17:49,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:49,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:17:49,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022028651] [2020-10-13 14:17:49,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:17:49,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:49,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:17:49,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:17:49,073 INFO L87 Difference]: Start difference. First operand 2790 states and 4002 transitions. Second operand 7 states. [2020-10-13 14:17:49,652 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-13 14:17:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:17:52,818 INFO L93 Difference]: Finished difference Result 6831 states and 9885 transitions. [2020-10-13 14:17:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:17:52,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-13 14:17:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:17:52,844 INFO L225 Difference]: With dead ends: 6831 [2020-10-13 14:17:52,845 INFO L226 Difference]: Without dead ends: 5922 [2020-10-13 14:17:52,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:17:52,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5922 states. [2020-10-13 14:17:53,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5922 to 3235. [2020-10-13 14:17:53,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3235 states. [2020-10-13 14:17:53,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4662 transitions. [2020-10-13 14:17:53,026 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4662 transitions. Word has length 78 [2020-10-13 14:17:53,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:17:53,027 INFO L479 AbstractCegarLoop]: Abstraction has 3235 states and 4662 transitions. [2020-10-13 14:17:53,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:17:53,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4662 transitions. [2020-10-13 14:17:53,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:17:53,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:53,032 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] [2020-10-13 14:17:53,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:17:53,032 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:17:53,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:53,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1681976929, now seen corresponding path program 1 times [2020-10-13 14:17:53,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:53,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018877922] [2020-10-13 14:17:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:53,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:55,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:55,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:55,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:57,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-13 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:17:58,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:17:58,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 14:17:58,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:58,636 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:17:58,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:58,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:58,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:58,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:58,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:17:58,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:58,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:17:58,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018877922] [2020-10-13 14:17:58,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:58,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:17:58,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457025797] [2020-10-13 14:17:58,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:17:58,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:58,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:17:58,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:17:58,684 INFO L87 Difference]: Start difference. First operand 3235 states and 4662 transitions. Second operand 7 states. [2020-10-13 14:17:59,323 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-13 14:18:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:02,809 INFO L93 Difference]: Finished difference Result 10584 states and 15578 transitions. [2020-10-13 14:18:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:18:02,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-13 14:18:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:02,834 INFO L225 Difference]: With dead ends: 10584 [2020-10-13 14:18:02,834 INFO L226 Difference]: Without dead ends: 9235 [2020-10-13 14:18:02,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:02,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9235 states. [2020-10-13 14:18:03,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9235 to 3977. [2020-10-13 14:18:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3977 states. [2020-10-13 14:18:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 5771 transitions. [2020-10-13 14:18:03,166 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 5771 transitions. Word has length 79 [2020-10-13 14:18:03,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:03,167 INFO L479 AbstractCegarLoop]: Abstraction has 3977 states and 5771 transitions. [2020-10-13 14:18:03,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:18:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 5771 transitions. [2020-10-13 14:18:03,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:18:03,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:03,173 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] [2020-10-13 14:18:03,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 14:18:03,173 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:03,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1445264895, now seen corresponding path program 1 times [2020-10-13 14:18:03,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:03,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996266612] [2020-10-13 14:18:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:03,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:03,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:03,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:03,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:03,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:03,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:04,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:08,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:08,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:18:08,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:18:08,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 14:18:08,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:18:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 14:18:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 14:18:08,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:08,905 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:18:08,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:08,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:08,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:08,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:08,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:08,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 14:18:08,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:08,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:08,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:08,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:08,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:08,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:08,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996266612] [2020-10-13 14:18:08,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:08,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:18:08,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322281378] [2020-10-13 14:18:08,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:18:08,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:08,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:18:08,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:18:08,966 INFO L87 Difference]: Start difference. First operand 3977 states and 5771 transitions. Second operand 9 states. [2020-10-13 14:18:09,615 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-13 14:18:15,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:15,633 INFO L93 Difference]: Finished difference Result 13979 states and 20693 transitions. [2020-10-13 14:18:15,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:18:15,634 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-13 14:18:15,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:15,670 INFO L225 Difference]: With dead ends: 13979 [2020-10-13 14:18:15,670 INFO L226 Difference]: Without dead ends: 12230 [2020-10-13 14:18:15,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2020-10-13 14:18:15,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12230 states. [2020-10-13 14:18:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12230 to 3965. [2020-10-13 14:18:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3965 states. [2020-10-13 14:18:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5746 transitions. [2020-10-13 14:18:16,061 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5746 transitions. Word has length 79 [2020-10-13 14:18:16,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:16,061 INFO L479 AbstractCegarLoop]: Abstraction has 3965 states and 5746 transitions. [2020-10-13 14:18:16,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:18:16,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5746 transitions. [2020-10-13 14:18:16,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:18:16,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:16,067 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] [2020-10-13 14:18:16,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 14:18:16,067 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:16,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:16,067 INFO L82 PathProgramCache]: Analyzing trace with hash -625884730, now seen corresponding path program 1 times [2020-10-13 14:18:16,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:16,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102533554] [2020-10-13 14:18:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:16,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:17,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:18,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:18,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:18,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:19,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:19,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:21,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:18:21,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:18:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 14:18:21,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:18:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 14:18:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 14:18:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:21,815 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:18:21,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:21,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:21,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:21,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:21,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 14:18:21,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:21,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:21,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:21,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102533554] [2020-10-13 14:18:21,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:21,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:18:21,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719620925] [2020-10-13 14:18:21,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:18:21,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:21,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:18:21,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:18:21,854 INFO L87 Difference]: Start difference. First operand 3965 states and 5746 transitions. Second operand 9 states. [2020-10-13 14:18:22,487 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 335 [2020-10-13 14:18:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:28,979 INFO L93 Difference]: Finished difference Result 14105 states and 20809 transitions. [2020-10-13 14:18:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:18:28,979 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-13 14:18:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:29,006 INFO L225 Difference]: With dead ends: 14105 [2020-10-13 14:18:29,006 INFO L226 Difference]: Without dead ends: 13238 [2020-10-13 14:18:29,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2020-10-13 14:18:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13238 states. [2020-10-13 14:18:29,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13238 to 3965. [2020-10-13 14:18:29,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3965 states. [2020-10-13 14:18:29,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5745 transitions. [2020-10-13 14:18:29,499 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5745 transitions. Word has length 79 [2020-10-13 14:18:29,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:29,499 INFO L479 AbstractCegarLoop]: Abstraction has 3965 states and 5745 transitions. [2020-10-13 14:18:29,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:18:29,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5745 transitions. [2020-10-13 14:18:29,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:18:29,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:29,506 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] [2020-10-13 14:18:29,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 14:18:29,506 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:29,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:29,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1810040801, now seen corresponding path program 1 times [2020-10-13 14:18:29,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:29,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367813002] [2020-10-13 14:18:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:29,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:29,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:29,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:29,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:29,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:30,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:30,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:30,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:32,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:33,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:33,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:33,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:33,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:34,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:34,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:34,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:34,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:34,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:18:34,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:18:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:18:34,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:34,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:18:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 14:18:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 14:18:34,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:35,299 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:18:35,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:35,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:35,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:35,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:35,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:35,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 14:18:35,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:35,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:35,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:35,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:35,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:35,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367813002] [2020-10-13 14:18:35,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:35,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:18:35,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921132528] [2020-10-13 14:18:35,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:18:35,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:35,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:18:35,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:18:35,348 INFO L87 Difference]: Start difference. First operand 3965 states and 5745 transitions. Second operand 9 states. [2020-10-13 14:18:35,999 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-13 14:18:40,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:40,318 INFO L93 Difference]: Finished difference Result 16013 states and 23862 transitions. [2020-10-13 14:18:40,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 14:18:40,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-13 14:18:40,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:40,343 INFO L225 Difference]: With dead ends: 16013 [2020-10-13 14:18:40,343 INFO L226 Difference]: Without dead ends: 13620 [2020-10-13 14:18:40,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-13 14:18:40,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13620 states. [2020-10-13 14:18:40,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13620 to 3978. [2020-10-13 14:18:40,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3978 states. [2020-10-13 14:18:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3978 states to 3978 states and 5733 transitions. [2020-10-13 14:18:40,803 INFO L78 Accepts]: Start accepts. Automaton has 3978 states and 5733 transitions. Word has length 79 [2020-10-13 14:18:40,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:40,804 INFO L479 AbstractCegarLoop]: Abstraction has 3978 states and 5733 transitions. [2020-10-13 14:18:40,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:18:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3978 states and 5733 transitions. [2020-10-13 14:18:40,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:18:40,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:40,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:18:40,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 14:18:40,810 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:40,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:40,811 INFO L82 PathProgramCache]: Analyzing trace with hash -922352288, now seen corresponding path program 1 times [2020-10-13 14:18:40,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:40,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908815792] [2020-10-13 14:18:40,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:40,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:40,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:41,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:41,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:43,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:43,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:44,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:44,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:44,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:44,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:45,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:45,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:45,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:45,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:18:45,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:18:45,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-13 14:18:45,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:18:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:18:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 14:18:45,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:46,453 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:18:46,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:46,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:46,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:46,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:46,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:46,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 14:18:46,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:18:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:18:46,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:46,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:46,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908815792] [2020-10-13 14:18:46,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:46,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:18:46,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515112782] [2020-10-13 14:18:46,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:18:46,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:46,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:18:46,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:18:46,542 INFO L87 Difference]: Start difference. First operand 3978 states and 5733 transitions. Second operand 6 states. [2020-10-13 14:18:47,154 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-13 14:18:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:49,878 INFO L93 Difference]: Finished difference Result 8727 states and 12683 transitions. [2020-10-13 14:18:49,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:18:49,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-13 14:18:49,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:49,888 INFO L225 Difference]: With dead ends: 8727 [2020-10-13 14:18:49,888 INFO L226 Difference]: Without dead ends: 5993 [2020-10-13 14:18:49,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:18:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2020-10-13 14:18:50,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 5192. [2020-10-13 14:18:50,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5192 states. [2020-10-13 14:18:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 7550 transitions. [2020-10-13 14:18:50,600 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 7550 transitions. Word has length 79 [2020-10-13 14:18:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:50,600 INFO L479 AbstractCegarLoop]: Abstraction has 5192 states and 7550 transitions. [2020-10-13 14:18:50,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:18:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 7550 transitions. [2020-10-13 14:18:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 14:18:50,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:50,608 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] [2020-10-13 14:18:50,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 14:18:50,608 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:18:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:50,609 INFO L82 PathProgramCache]: Analyzing trace with hash 921105331, now seen corresponding path program 1 times [2020-10-13 14:18:50,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:50,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315656288] [2020-10-13 14:18:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:50,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:50,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:50,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:51,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:51,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:51,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:51,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:52,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:52,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:53,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:53,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:53,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:54,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:54,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:55,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:55,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:55,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 14:18:55,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 14:18:55,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 14:18:55,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:18:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:18:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 14:18:55,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:56,235 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:18:56,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:56,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:56,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:56,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:56,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 14:18:56,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:18:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:18:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:56,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315656288] [2020-10-13 14:18:56,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:56,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:18:56,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491388551] [2020-10-13 14:18:56,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:18:56,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:56,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:18:56,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:18:56,290 INFO L87 Difference]: Start difference. First operand 5192 states and 7550 transitions. Second operand 6 states. [2020-10-13 14:18:56,874 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-13 14:18:59,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:59,733 INFO L93 Difference]: Finished difference Result 8278 states and 11975 transitions. [2020-10-13 14:18:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:18:59,734 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-10-13 14:18:59,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:59,741 INFO L225 Difference]: With dead ends: 8278 [2020-10-13 14:18:59,742 INFO L226 Difference]: Without dead ends: 6580 [2020-10-13 14:18:59,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:18:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2020-10-13 14:19:00,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 4631. [2020-10-13 14:19:00,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4631 states. [2020-10-13 14:19:00,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 6725 transitions. [2020-10-13 14:19:00,431 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 6725 transitions. Word has length 80 [2020-10-13 14:19:00,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:00,431 INFO L479 AbstractCegarLoop]: Abstraction has 4631 states and 6725 transitions. [2020-10-13 14:19:00,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:19:00,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 6725 transitions. [2020-10-13 14:19:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 14:19:00,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:00,436 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] [2020-10-13 14:19:00,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 14:19:00,437 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:19:00,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:00,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1226497979, now seen corresponding path program 1 times [2020-10-13 14:19:00,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:00,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626845894] [2020-10-13 14:19:00,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:00,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:01,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:01,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:01,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:01,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:02,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:02,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:04,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:04,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:05,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:05,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 14:19:05,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:19:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:19:05,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:19:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:19:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 14:19:05,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:06,044 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:19:06,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:06,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:06,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:06,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:06,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 14:19:06,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:19:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:19:06,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:06,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626845894] [2020-10-13 14:19:06,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:06,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:19:06,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742937062] [2020-10-13 14:19:06,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:19:06,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:06,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:19:06,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:19:06,107 INFO L87 Difference]: Start difference. First operand 4631 states and 6725 transitions. Second operand 6 states. [2020-10-13 14:19:06,702 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-13 14:19:09,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:09,426 INFO L93 Difference]: Finished difference Result 7021 states and 10162 transitions. [2020-10-13 14:19:09,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:19:09,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-10-13 14:19:09,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:09,433 INFO L225 Difference]: With dead ends: 7021 [2020-10-13 14:19:09,434 INFO L226 Difference]: Without dead ends: 4298 [2020-10-13 14:19:09,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:19:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2020-10-13 14:19:10,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 4238. [2020-10-13 14:19:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4238 states. [2020-10-13 14:19:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4238 states to 4238 states and 6160 transitions. [2020-10-13 14:19:10,355 INFO L78 Accepts]: Start accepts. Automaton has 4238 states and 6160 transitions. Word has length 80 [2020-10-13 14:19:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:10,356 INFO L479 AbstractCegarLoop]: Abstraction has 4238 states and 6160 transitions. [2020-10-13 14:19:10,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:19:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 4238 states and 6160 transitions. [2020-10-13 14:19:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 14:19:10,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:10,362 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] [2020-10-13 14:19:10,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 14:19:10,362 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:19:10,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:10,363 INFO L82 PathProgramCache]: Analyzing trace with hash -306117305, now seen corresponding path program 1 times [2020-10-13 14:19:10,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:10,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619821084] [2020-10-13 14:19:10,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:10,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:10,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:10,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:10,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:14,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:14,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:14,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:15,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:15,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:15,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:15,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 14:19:15,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 14:19:15,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 14:19:15,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:15,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:19:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:19:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 14:19:15,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:16,035 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:19:16,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:16,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:16,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:16,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:16,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:16,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 14:19:16,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:19:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:19:16,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:16,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619821084] [2020-10-13 14:19:16,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:16,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:19:16,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715715633] [2020-10-13 14:19:16,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:19:16,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:16,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:19:16,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:19:16,088 INFO L87 Difference]: Start difference. First operand 4238 states and 6160 transitions. Second operand 6 states. [2020-10-13 14:19:16,672 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-13 14:19:19,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:19,283 INFO L93 Difference]: Finished difference Result 6482 states and 9352 transitions. [2020-10-13 14:19:19,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:19:19,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-10-13 14:19:19,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:19,287 INFO L225 Difference]: With dead ends: 6482 [2020-10-13 14:19:19,288 INFO L226 Difference]: Without dead ends: 3621 [2020-10-13 14:19:19,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:19:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2020-10-13 14:19:19,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3563. [2020-10-13 14:19:19,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3563 states. [2020-10-13 14:19:19,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 5123 transitions. [2020-10-13 14:19:19,772 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 5123 transitions. Word has length 80 [2020-10-13 14:19:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:19,772 INFO L479 AbstractCegarLoop]: Abstraction has 3563 states and 5123 transitions. [2020-10-13 14:19:19,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:19:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 5123 transitions. [2020-10-13 14:19:19,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 14:19:19,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:19,776 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] [2020-10-13 14:19:19,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 14:19:19,776 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:19:19,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:19,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1862895533, now seen corresponding path program 1 times [2020-10-13 14:19:19,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:19,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374829276] [2020-10-13 14:19:19,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:19,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:21,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:21,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:21,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:22,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:22,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:22,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:24,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:24,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:24,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 14:19:24,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:19:24,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-13 14:19:24,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:24,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:19:24,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:19:24,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 14:19:24,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:25,410 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:19:25,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:25,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:25,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:25,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:25,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:25,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 14:19:25,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:19:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:19:25,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:25,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374829276] [2020-10-13 14:19:25,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:25,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:19:25,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909053531] [2020-10-13 14:19:25,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:19:25,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:25,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:19:25,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:19:25,478 INFO L87 Difference]: Start difference. First operand 3563 states and 5123 transitions. Second operand 6 states. [2020-10-13 14:19:26,036 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-13 14:19:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:28,568 INFO L93 Difference]: Finished difference Result 5917 states and 8497 transitions. [2020-10-13 14:19:28,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:19:28,569 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-10-13 14:19:28,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:28,573 INFO L225 Difference]: With dead ends: 5917 [2020-10-13 14:19:28,573 INFO L226 Difference]: Without dead ends: 3161 [2020-10-13 14:19:28,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:19:28,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2020-10-13 14:19:29,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3101. [2020-10-13 14:19:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3101 states. [2020-10-13 14:19:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4435 transitions. [2020-10-13 14:19:29,034 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4435 transitions. Word has length 80 [2020-10-13 14:19:29,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:29,034 INFO L479 AbstractCegarLoop]: Abstraction has 3101 states and 4435 transitions. [2020-10-13 14:19:29,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:19:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4435 transitions. [2020-10-13 14:19:29,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 14:19:29,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:29,036 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] [2020-10-13 14:19:29,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 14:19:29,036 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:19:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:29,037 INFO L82 PathProgramCache]: Analyzing trace with hash -336261525, now seen corresponding path program 1 times [2020-10-13 14:19:29,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:29,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109443049] [2020-10-13 14:19:29,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:29,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:29,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:29,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:29,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:29,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:30,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:30,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:30,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:30,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:32,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:33,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:33,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:33,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:34,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:34,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 14:19:34,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 14:19:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 14:19:34,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:19:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:19:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 14:19:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:34,723 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:19:34,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:34,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:34,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:34,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:34,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:34,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:19:34,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:19:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:19:34,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:34,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109443049] [2020-10-13 14:19:34,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:34,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:19:34,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958168909] [2020-10-13 14:19:34,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:19:34,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:34,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:19:34,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:19:34,762 INFO L87 Difference]: Start difference. First operand 3101 states and 4435 transitions. Second operand 11 states. [2020-10-13 14:19:35,373 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2020-10-13 14:19:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:46,329 INFO L93 Difference]: Finished difference Result 19550 states and 28635 transitions. [2020-10-13 14:19:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-13 14:19:46,330 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-10-13 14:19:46,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:46,350 INFO L225 Difference]: With dead ends: 19550 [2020-10-13 14:19:46,350 INFO L226 Difference]: Without dead ends: 17593 [2020-10-13 14:19:46,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 14:19:46,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17593 states. [2020-10-13 14:19:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17593 to 3101. [2020-10-13 14:19:46,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3101 states. [2020-10-13 14:19:46,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4434 transitions. [2020-10-13 14:19:46,989 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4434 transitions. Word has length 81 [2020-10-13 14:19:46,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:46,990 INFO L479 AbstractCegarLoop]: Abstraction has 3101 states and 4434 transitions. [2020-10-13 14:19:46,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:19:46,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4434 transitions. [2020-10-13 14:19:46,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 14:19:46,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:46,991 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] [2020-10-13 14:19:46,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 14:19:46,992 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:19:46,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:46,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1887556146, now seen corresponding path program 1 times [2020-10-13 14:19:46,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:46,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113969895] [2020-10-13 14:19:46,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:47,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:47,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:47,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:48,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:48,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:48,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:48,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:48,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:49,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:52,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:52,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 14:19:52,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 14:19:52,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 14:19:52,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 14:19:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:19:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 14:19:52,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:52,653 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:19:52,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:52,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:52,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:52,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:52,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:52,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 14:19:52,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:19:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:19:52,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:52,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113969895] [2020-10-13 14:19:52,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:52,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 14:19:52,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643859860] [2020-10-13 14:19:52,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 14:19:52,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:52,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 14:19:52,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-13 14:19:52,702 INFO L87 Difference]: Start difference. First operand 3101 states and 4434 transitions. Second operand 10 states. [2020-10-13 14:19:53,431 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2020-10-13 14:19:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:57,764 INFO L93 Difference]: Finished difference Result 9389 states and 13742 transitions. [2020-10-13 14:19:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 14:19:57,764 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-13 14:19:57,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:57,772 INFO L225 Difference]: With dead ends: 9389 [2020-10-13 14:19:57,773 INFO L226 Difference]: Without dead ends: 7334 [2020-10-13 14:19:57,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2020-10-13 14:19:57,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7334 states. [2020-10-13 14:19:58,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7334 to 3101. [2020-10-13 14:19:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3101 states. [2020-10-13 14:19:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4433 transitions. [2020-10-13 14:19:58,340 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4433 transitions. Word has length 81 [2020-10-13 14:19:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:58,340 INFO L479 AbstractCegarLoop]: Abstraction has 3101 states and 4433 transitions. [2020-10-13 14:19:58,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 14:19:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4433 transitions. [2020-10-13 14:19:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 14:19:58,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:58,342 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] [2020-10-13 14:19:58,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 14:19:58,342 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:19:58,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash 28514381, now seen corresponding path program 1 times [2020-10-13 14:19:58,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:58,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699254836] [2020-10-13 14:19:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:58,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:58,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:58,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:59,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:59,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:03,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:03,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 14:20:03,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 14:20:03,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:20:03,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:03,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:20:03,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:20:03,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 14:20:03,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:03,967 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:20:03,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:20:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:03,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:03,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:03,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:20:03,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:20:03,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 14:20:03,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:03,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:20:03,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:20:03,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:20:03,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:20:04,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699254836] [2020-10-13 14:20:04,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:20:04,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:20:04,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459440206] [2020-10-13 14:20:04,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:20:04,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:20:04,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:20:04,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:20:04,011 INFO L87 Difference]: Start difference. First operand 3101 states and 4433 transitions. Second operand 7 states. [2020-10-13 14:20:04,610 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2020-10-13 14:20:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:20:07,655 INFO L93 Difference]: Finished difference Result 6444 states and 9309 transitions. [2020-10-13 14:20:07,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 14:20:07,656 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-10-13 14:20:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:20:07,660 INFO L225 Difference]: With dead ends: 6444 [2020-10-13 14:20:07,661 INFO L226 Difference]: Without dead ends: 4119 [2020-10-13 14:20:07,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:20:07,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2020-10-13 14:20:08,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 3101. [2020-10-13 14:20:08,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3101 states. [2020-10-13 14:20:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4432 transitions. [2020-10-13 14:20:08,191 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4432 transitions. Word has length 81 [2020-10-13 14:20:08,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:20:08,191 INFO L479 AbstractCegarLoop]: Abstraction has 3101 states and 4432 transitions. [2020-10-13 14:20:08,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:20:08,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4432 transitions. [2020-10-13 14:20:08,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-13 14:20:08,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:20:08,193 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] [2020-10-13 14:20:08,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 14:20:08,194 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:20:08,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:20:08,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1217552850, now seen corresponding path program 1 times [2020-10-13 14:20:08,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:20:08,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190124988] [2020-10-13 14:20:08,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:20:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:08,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:08,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:08,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:09,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:09,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:09,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:09,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:09,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:10,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:10,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:11,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:12,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:12,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:13,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:13,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 14:20:13,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-13 14:20:13,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 14:20:13,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:13,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:20:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:20:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 14:20:13,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:13,997 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 14:20:13,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:20:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:14,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:14,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:14,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:20:14,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:20:14,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:20:14,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:20:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:20:14,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:20:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:20:14,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190124988] [2020-10-13 14:20:14,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:20:14,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:20:14,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787201572] [2020-10-13 14:20:14,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:20:14,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:20:14,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:20:14,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:20:14,035 INFO L87 Difference]: Start difference. First operand 3101 states and 4432 transitions. Second operand 11 states. [2020-10-13 14:20:14,743 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2020-10-13 14:20:23,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:20:23,270 INFO L93 Difference]: Finished difference Result 18617 states and 27222 transitions. [2020-10-13 14:20:23,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-13 14:20:23,271 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-10-13 14:20:23,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:20:23,289 INFO L225 Difference]: With dead ends: 18617 [2020-10-13 14:20:23,290 INFO L226 Difference]: Without dead ends: 16665 [2020-10-13 14:20:23,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=219, Invalid=903, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 14:20:23,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16665 states. [2020-10-13 14:20:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16665 to 3101. [2020-10-13 14:20:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3101 states. [2020-10-13 14:20:23,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4430 transitions. [2020-10-13 14:20:23,927 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4430 transitions. Word has length 83 [2020-10-13 14:20:23,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:20:23,927 INFO L479 AbstractCegarLoop]: Abstraction has 3101 states and 4430 transitions. [2020-10-13 14:20:23,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:20:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4430 transitions. [2020-10-13 14:20:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-13 14:20:23,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:20:23,929 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] [2020-10-13 14:20:23,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 14:20:23,929 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:20:23,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:20:23,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1088102105, now seen corresponding path program 1 times [2020-10-13 14:20:23,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:20:23,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153216014] [2020-10-13 14:20:23,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:20:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:23,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:24,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:24,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:24,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking...