/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:45:10,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:45:10,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:45:10,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:45:10,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:45:10,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:45:10,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:45:10,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:45:10,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:45:10,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:45:10,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:45:10,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:45:10,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:45:10,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:45:10,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:45:10,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:45:10,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:45:10,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:45:10,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:45:10,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:45:10,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:45:10,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:45:10,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:45:10,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:45:10,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:45:10,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:45:10,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:45:10,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:45:10,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:45:10,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:45:10,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:45:10,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:45:10,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:45:10,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:45:10,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:45:10,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:45:10,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:45:10,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:45:10,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:45:10,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:45:10,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:45:10,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:45:10,228 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:45:10,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:45:10,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:45:10,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:45:10,230 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:45:10,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:45:10,231 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:45:10,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:45:10,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:45:10,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:45:10,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:45:10,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:45:10,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:45:10,233 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:45:10,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:45:10,233 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:45:10,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:45:10,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:45:10,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:45:10,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:45:10,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:45:10,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:45:10,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:45:10,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:45:10,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:45:10,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:45:10,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:45:10,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:45:10,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:45:10,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:45:10,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:45:10,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:45:10,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:45:10,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:45:10,565 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:45:10,566 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:45:10,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3659f1f20/bb8a4dc6eb024e438cb7d272782e9d47/FLAG9de182b97 [2020-10-12 19:45:11,309 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:45:11,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:45:11,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3659f1f20/bb8a4dc6eb024e438cb7d272782e9d47/FLAG9de182b97 [2020-10-12 19:45:11,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3659f1f20/bb8a4dc6eb024e438cb7d272782e9d47 [2020-10-12 19:45:11,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:45:11,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:45:11,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:45:11,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:45:11,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:45:11,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:45:11" (1/1) ... [2020-10-12 19:45:11,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3afd2ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:11, skipping insertion in model container [2020-10-12 19:45:11,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:45:11" (1/1) ... [2020-10-12 19:45:11,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:45:11,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:45:12,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:45:12,913 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:45:13,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:45:13,647 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:45:13,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13 WrapperNode [2020-10-12 19:45:13,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:45:13,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:45:13,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:45:13,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:45:13,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (1/1) ... [2020-10-12 19:45:13,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (1/1) ... [2020-10-12 19:45:13,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (1/1) ... [2020-10-12 19:45:13,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (1/1) ... [2020-10-12 19:45:13,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (1/1) ... [2020-10-12 19:45:13,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (1/1) ... [2020-10-12 19:45:13,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (1/1) ... [2020-10-12 19:45:13,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:45:13,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:45:13,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:45:13,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:45:13,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:45:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:45:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:45:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:45:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:45:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:45:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:45:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:45:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 19:45:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:45:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:45:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:45:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:45:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:45:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:45:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:45:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:45:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:45:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:45:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 19:45:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:45:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:45:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:45:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:45:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:45:17,465 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:45:17,466 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:45:17,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:45:17 BoogieIcfgContainer [2020-10-12 19:45:17,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:45:17,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:45:17,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:45:17,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:45:17,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:45:11" (1/3) ... [2020-10-12 19:45:17,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f041932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:45:17, skipping insertion in model container [2020-10-12 19:45:17,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:45:13" (2/3) ... [2020-10-12 19:45:17,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f041932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:45:17, skipping insertion in model container [2020-10-12 19:45:17,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:45:17" (3/3) ... [2020-10-12 19:45:17,483 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:45:17,493 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:45:17,501 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-12 19:45:17,515 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-12 19:45:17,543 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:45:17,544 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:45:17,544 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:45:17,544 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:45:17,544 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:45:17,544 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:45:17,545 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:45:17,545 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:45:17,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states. [2020-10-12 19:45:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 19:45:17,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:17,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:45:17,608 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:17,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:17,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1865040373, now seen corresponding path program 1 times [2020-10-12 19:45:17,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:17,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095807649] [2020-10-12 19:45:17,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:18,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:18,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:18,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:18,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:18,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:19,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:19,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:19,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:20,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:20,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:21,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:21,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:21,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:23,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:23,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 19:45:23,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:45:23,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-12 19:45:23,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:45:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 19:45:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 19:45:23,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 19:45:24,488 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:45:24,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:45:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:24,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:24,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:24,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:45:24,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:45:24,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 19:45:24,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:45:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:45:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:45:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:45:24,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095807649] [2020-10-12 19:45:24,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:45:24,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:45:24,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362015048] [2020-10-12 19:45:24,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:45:24,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:45:24,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:45:24,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:45:24,707 INFO L87 Difference]: Start difference. First operand 1129 states. Second operand 7 states. [2020-10-12 19:45:26,074 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 470 [2020-10-12 19:45:40,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:45:40,712 INFO L93 Difference]: Finished difference Result 3395 states and 5707 transitions. [2020-10-12 19:45:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:45:40,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-12 19:45:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:45:40,771 INFO L225 Difference]: With dead ends: 3395 [2020-10-12 19:45:40,771 INFO L226 Difference]: Without dead ends: 2718 [2020-10-12 19:45:40,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:45:40,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2020-10-12 19:45:40,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1799. [2020-10-12 19:45:40,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1799 states. [2020-10-12 19:45:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2435 transitions. [2020-10-12 19:45:40,971 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2435 transitions. Word has length 89 [2020-10-12 19:45:40,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:45:40,973 INFO L479 AbstractCegarLoop]: Abstraction has 1799 states and 2435 transitions. [2020-10-12 19:45:40,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:45:40,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2435 transitions. [2020-10-12 19:45:40,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 19:45:40,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:40,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:45:40,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:45:40,983 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:40,986 INFO L82 PathProgramCache]: Analyzing trace with hash -759680036, now seen corresponding path program 1 times [2020-10-12 19:45:40,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:40,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425859578] [2020-10-12 19:45:40,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:41,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:43,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:46,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:46,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 19:45:46,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:45:46,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:45:46,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:46,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:45:46,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:45:46,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 19:45:46,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:47,313 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:45:47,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:45:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:47,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:47,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:47,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:45:47,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:45:47,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:45:47,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:45:47,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:45:47,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:45:47,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:45:47,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:45:47,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425859578] [2020-10-12 19:45:47,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:45:47,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:45:47,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183735916] [2020-10-12 19:45:47,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:45:47,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:45:47,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:45:47,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:45:47,401 INFO L87 Difference]: Start difference. First operand 1799 states and 2435 transitions. Second operand 7 states. [2020-10-12 19:45:48,647 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 470 [2020-10-12 19:45:56,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:45:56,925 INFO L93 Difference]: Finished difference Result 4651 states and 6483 transitions. [2020-10-12 19:45:56,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:45:56,925 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 19:45:56,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:45:56,946 INFO L225 Difference]: With dead ends: 4651 [2020-10-12 19:45:56,946 INFO L226 Difference]: Without dead ends: 3683 [2020-10-12 19:45:56,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:45:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2020-10-12 19:45:57,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 2200. [2020-10-12 19:45:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-10-12 19:45:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 3052 transitions. [2020-10-12 19:45:57,053 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 3052 transitions. Word has length 90 [2020-10-12 19:45:57,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:45:57,055 INFO L479 AbstractCegarLoop]: Abstraction has 2200 states and 3052 transitions. [2020-10-12 19:45:57,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:45:57,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 3052 transitions. [2020-10-12 19:45:57,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 19:45:57,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:57,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:45:57,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:45:57,063 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:57,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:57,063 INFO L82 PathProgramCache]: Analyzing trace with hash -495703738, now seen corresponding path program 1 times [2020-10-12 19:45:57,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:57,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391847332] [2020-10-12 19:45:57,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:57,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:58,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:58,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:01,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:01,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:02,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:02,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:02,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 19:46:02,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:46:02,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 19:46:02,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:02,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:46:02,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 19:46:02,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 19:46:02,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:03,662 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:46:03,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:46:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:03,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:03,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:03,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:46:03,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:46:03,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 19:46:03,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:03,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:46:03,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:46:03,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:46:03,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:46:03,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391847332] [2020-10-12 19:46:03,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:46:03,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:46:03,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18554297] [2020-10-12 19:46:03,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:46:03,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:46:03,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:46:03,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:46:03,770 INFO L87 Difference]: Start difference. First operand 2200 states and 3052 transitions. Second operand 7 states. [2020-10-12 19:46:05,158 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 470 [2020-10-12 19:46:14,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:46:14,595 INFO L93 Difference]: Finished difference Result 10036 states and 14608 transitions. [2020-10-12 19:46:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:46:14,596 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 19:46:14,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:46:14,634 INFO L225 Difference]: With dead ends: 10036 [2020-10-12 19:46:14,634 INFO L226 Difference]: Without dead ends: 8186 [2020-10-12 19:46:14,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:46:14,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8186 states. [2020-10-12 19:46:14,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8186 to 5062. [2020-10-12 19:46:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5062 states. [2020-10-12 19:46:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 7361 transitions. [2020-10-12 19:46:14,913 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 7361 transitions. Word has length 90 [2020-10-12 19:46:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:46:14,914 INFO L479 AbstractCegarLoop]: Abstraction has 5062 states and 7361 transitions. [2020-10-12 19:46:14,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:46:14,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 7361 transitions. [2020-10-12 19:46:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:46:14,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:46:14,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:46:14,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:46:14,932 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:46:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:46:14,932 INFO L82 PathProgramCache]: Analyzing trace with hash 327210963, now seen corresponding path program 1 times [2020-10-12 19:46:14,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:46:14,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668523885] [2020-10-12 19:46:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:46:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:15,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:15,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:15,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:15,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:15,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:16,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:16,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:17,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:17,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:17,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:19,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:19,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:46:19,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:46:19,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 19:46:19,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:46:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:46:19,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 19:46:19,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:46:21,434 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:46:21,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:46:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:21,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:21,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:21,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:46:21,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:46:21,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 19:46:21,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:46:21,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:46:21,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:46:21,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:46:21,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668523885] [2020-10-12 19:46:21,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:46:21,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:46:21,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576962103] [2020-10-12 19:46:21,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:46:21,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:46:21,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:46:21,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:46:21,519 INFO L87 Difference]: Start difference. First operand 5062 states and 7361 transitions. Second operand 10 states. [2020-10-12 19:46:22,817 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 478 [2020-10-12 19:46:33,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:46:33,057 INFO L93 Difference]: Finished difference Result 11697 states and 17099 transitions. [2020-10-12 19:46:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:46:33,058 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-10-12 19:46:33,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:46:33,099 INFO L225 Difference]: With dead ends: 11697 [2020-10-12 19:46:33,100 INFO L226 Difference]: Without dead ends: 10579 [2020-10-12 19:46:33,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:46:33,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2020-10-12 19:46:33,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 5062. [2020-10-12 19:46:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5062 states. [2020-10-12 19:46:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 7359 transitions. [2020-10-12 19:46:33,378 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 7359 transitions. Word has length 91 [2020-10-12 19:46:33,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:46:33,378 INFO L479 AbstractCegarLoop]: Abstraction has 5062 states and 7359 transitions. [2020-10-12 19:46:33,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:46:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 7359 transitions. [2020-10-12 19:46:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:46:33,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:46:33,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:46:33,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:46:33,388 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:46:33,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:46:33,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1377825751, now seen corresponding path program 1 times [2020-10-12 19:46:33,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:46:33,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433642221] [2020-10-12 19:46:33,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:46:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:33,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:33,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:33,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:33,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:34,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:34,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:34,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:34,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:37,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:37,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:37,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:38,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:38,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:46:38,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:46:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 19:46:38,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:46:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:46:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:46:38,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:46:40,022 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:46:40,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:46:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:40,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:40,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:40,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:46:40,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:46:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:46:40,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:46:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:46:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:46:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:46:40,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433642221] [2020-10-12 19:46:40,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:46:40,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:46:40,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089019715] [2020-10-12 19:46:40,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:46:40,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:46:40,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:46:40,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:46:40,121 INFO L87 Difference]: Start difference. First operand 5062 states and 7359 transitions. Second operand 12 states. [2020-10-12 19:46:40,256 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2020-10-12 19:46:42,859 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 495 DAG size of output: 495 [2020-10-12 19:46:43,512 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-10-12 19:46:45,944 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-10-12 19:47:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:47:04,062 INFO L93 Difference]: Finished difference Result 15738 states and 23140 transitions. [2020-10-12 19:47:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 19:47:04,062 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2020-10-12 19:47:04,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:47:04,091 INFO L225 Difference]: With dead ends: 15738 [2020-10-12 19:47:04,092 INFO L226 Difference]: Without dead ends: 14887 [2020-10-12 19:47:04,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=371, Invalid=1351, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 19:47:04,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14887 states. [2020-10-12 19:47:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14887 to 5068. [2020-10-12 19:47:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5068 states. [2020-10-12 19:47:04,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5068 states to 5068 states and 7366 transitions. [2020-10-12 19:47:04,486 INFO L78 Accepts]: Start accepts. Automaton has 5068 states and 7366 transitions. Word has length 91 [2020-10-12 19:47:04,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:47:04,487 INFO L479 AbstractCegarLoop]: Abstraction has 5068 states and 7366 transitions. [2020-10-12 19:47:04,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:47:04,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5068 states and 7366 transitions. [2020-10-12 19:47:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:47:04,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:47:04,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:47:04,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:47:04,497 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:47:04,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:47:04,497 INFO L82 PathProgramCache]: Analyzing trace with hash -250323803, now seen corresponding path program 1 times [2020-10-12 19:47:04,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:47:04,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932723492] [2020-10-12 19:47:04,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:47:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:04,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:04,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:04,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:04,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:05,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:05,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:06,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:06,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:07,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:07,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:09,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:09,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:47:09,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:47:09,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 19:47:09,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:09,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:47:09,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:47:09,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 19:47:09,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:11,099 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:47:11,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:47:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:11,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:11,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:11,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:47:11,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:47:11,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 19:47:11,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:47:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:47:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:47:11,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:47:11,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932723492] [2020-10-12 19:47:11,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:47:11,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:47:11,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057461041] [2020-10-12 19:47:11,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:47:11,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:47:11,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:47:11,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:47:11,182 INFO L87 Difference]: Start difference. First operand 5068 states and 7366 transitions. Second operand 11 states. [2020-10-12 19:47:13,803 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 485 DAG size of output: 484 [2020-10-12 19:47:25,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:47:25,032 INFO L93 Difference]: Finished difference Result 10200 states and 14835 transitions. [2020-10-12 19:47:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 19:47:25,032 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2020-10-12 19:47:25,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:47:25,057 INFO L225 Difference]: With dead ends: 10200 [2020-10-12 19:47:25,057 INFO L226 Difference]: Without dead ends: 8721 [2020-10-12 19:47:25,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2020-10-12 19:47:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8721 states. [2020-10-12 19:47:25,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8721 to 5072. [2020-10-12 19:47:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5072 states. [2020-10-12 19:47:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 7369 transitions. [2020-10-12 19:47:25,471 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 7369 transitions. Word has length 91 [2020-10-12 19:47:25,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:47:25,472 INFO L479 AbstractCegarLoop]: Abstraction has 5072 states and 7369 transitions. [2020-10-12 19:47:25,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:47:25,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 7369 transitions. [2020-10-12 19:47:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:47:25,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:47:25,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:47:25,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:47:25,481 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:47:25,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:47:25,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1272344570, now seen corresponding path program 1 times [2020-10-12 19:47:25,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:47:25,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422094055] [2020-10-12 19:47:25,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:47:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:25,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:25,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:25,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:25,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:27,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:27,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:27,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:28,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:29,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:29,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:29,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:30,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:30,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:30,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:47:30,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:47:30,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 19:47:30,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:47:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:47:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 19:47:30,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:32,430 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:47:32,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:47:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:32,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:32,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:32,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:47:32,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:47:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:47:32,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:47:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:47:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:47:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:47:32,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422094055] [2020-10-12 19:47:32,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:47:32,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:47:32,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326702099] [2020-10-12 19:47:32,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:47:32,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:47:32,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:47:32,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:47:32,525 INFO L87 Difference]: Start difference. First operand 5072 states and 7369 transitions. Second operand 14 states. [2020-10-12 19:47:35,418 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 523 DAG size of output: 500 [2020-10-12 19:47:35,918 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-10-12 19:47:36,140 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-12 19:47:36,960 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-10-12 19:47:39,258 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2020-10-12 19:47:52,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:47:52,053 INFO L93 Difference]: Finished difference Result 10823 states and 15843 transitions. [2020-10-12 19:47:52,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 19:47:52,053 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-12 19:47:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:47:52,068 INFO L225 Difference]: With dead ends: 10823 [2020-10-12 19:47:52,068 INFO L226 Difference]: Without dead ends: 10074 [2020-10-12 19:47:52,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=272, Invalid=918, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 19:47:52,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2020-10-12 19:47:52,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 5088. [2020-10-12 19:47:52,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5088 states. [2020-10-12 19:47:52,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5088 states to 5088 states and 7389 transitions. [2020-10-12 19:47:52,604 INFO L78 Accepts]: Start accepts. Automaton has 5088 states and 7389 transitions. Word has length 92 [2020-10-12 19:47:52,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:47:52,605 INFO L479 AbstractCegarLoop]: Abstraction has 5088 states and 7389 transitions. [2020-10-12 19:47:52,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:47:52,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5088 states and 7389 transitions. [2020-10-12 19:47:52,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:47:52,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:47:52,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:47:52,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:47:52,612 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:47:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:47:52,613 INFO L82 PathProgramCache]: Analyzing trace with hash -72180344, now seen corresponding path program 1 times [2020-10-12 19:47:52,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:47:52,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366118031] [2020-10-12 19:47:52,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:47:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:52,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:52,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:52,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:52,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:53,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:55,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:55,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:56,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:56,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:56,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:57,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:57,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:57,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:57,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:47:57,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:47:57,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:47:57,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:47:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:47:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 19:47:57,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:59,145 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:47:59,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:47:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:59,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:59,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:59,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:47:59,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:47:59,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:47:59,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:47:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:47:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:47:59,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:59,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:47:59,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366118031] [2020-10-12 19:47:59,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:47:59,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:47:59,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953253414] [2020-10-12 19:47:59,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:47:59,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:47:59,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:47:59,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:47:59,233 INFO L87 Difference]: Start difference. First operand 5088 states and 7389 transitions. Second operand 11 states. [2020-10-12 19:47:59,376 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-12 19:48:02,313 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 504 DAG size of output: 501 [2020-10-12 19:48:02,745 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-10-12 19:48:02,942 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-10-12 19:48:03,153 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-10-12 19:48:03,369 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-10-12 19:48:04,163 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-12 19:48:05,983 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-12 19:48:12,284 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-12 19:48:12,599 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-10-12 19:48:14,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:48:14,536 INFO L93 Difference]: Finished difference Result 11107 states and 16405 transitions. [2020-10-12 19:48:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:48:14,536 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2020-10-12 19:48:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:48:14,552 INFO L225 Difference]: With dead ends: 11107 [2020-10-12 19:48:14,553 INFO L226 Difference]: Without dead ends: 10551 [2020-10-12 19:48:14,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930 [2020-10-12 19:48:14,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10551 states. [2020-10-12 19:48:15,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10551 to 5128. [2020-10-12 19:48:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5128 states. [2020-10-12 19:48:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5128 states to 5128 states and 7443 transitions. [2020-10-12 19:48:15,144 INFO L78 Accepts]: Start accepts. Automaton has 5128 states and 7443 transitions. Word has length 92 [2020-10-12 19:48:15,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:48:15,183 INFO L479 AbstractCegarLoop]: Abstraction has 5128 states and 7443 transitions. [2020-10-12 19:48:15,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:48:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5128 states and 7443 transitions. [2020-10-12 19:48:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:48:15,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:48:15,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:48:15,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:48:15,189 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:48:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:48:15,190 INFO L82 PathProgramCache]: Analyzing trace with hash -532075823, now seen corresponding path program 1 times [2020-10-12 19:48:15,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:48:15,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862230269] [2020-10-12 19:48:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:48:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:48:15,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:15,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:15,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:15,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:15,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:15,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:16,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:16,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:16,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:17,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:18,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:19,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:19,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:20,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:48:20,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:48:20,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:48:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:48:20,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:48:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:48:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:48:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 19:48:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:48:21,822 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:48:21,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:48:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:48:21,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:21,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:48:21,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:48:21,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:48:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:48:21,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:48:21,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:48:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:48:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:48:21,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:48:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:48:21,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862230269] [2020-10-12 19:48:21,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:48:21,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 19:48:21,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666210484] [2020-10-12 19:48:21,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 19:48:21,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:48:21,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 19:48:21,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-12 19:48:21,959 INFO L87 Difference]: Start difference. First operand 5128 states and 7443 transitions. Second operand 15 states. [2020-10-12 19:48:23,373 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 485 [2020-10-12 19:48:36,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:48:36,605 INFO L93 Difference]: Finished difference Result 14442 states and 21361 transitions. [2020-10-12 19:48:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:48:36,606 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 92 [2020-10-12 19:48:36,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:48:36,626 INFO L225 Difference]: With dead ends: 14442 [2020-10-12 19:48:36,627 INFO L226 Difference]: Without dead ends: 13109 [2020-10-12 19:48:36,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=338, Invalid=1468, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 19:48:36,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13109 states. [2020-10-12 19:48:37,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13109 to 5194. [2020-10-12 19:48:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5194 states. [2020-10-12 19:48:37,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 5194 states and 7535 transitions. [2020-10-12 19:48:37,181 INFO L78 Accepts]: Start accepts. Automaton has 5194 states and 7535 transitions. Word has length 92 [2020-10-12 19:48:37,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:48:37,182 INFO L479 AbstractCegarLoop]: Abstraction has 5194 states and 7535 transitions. [2020-10-12 19:48:37,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 19:48:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5194 states and 7535 transitions. [2020-10-12 19:48:37,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:48:37,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:48:37,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:48:37,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:48:37,187 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:48:37,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:48:37,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1375722959, now seen corresponding path program 1 times [2020-10-12 19:48:37,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:48:37,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988396465] [2020-10-12 19:48:37,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:48:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:48:37,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:37,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:37,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:37,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:37,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:37,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:38,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:38,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:38,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:38,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:38,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:39,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:39,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:39,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:39,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:39,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:42,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:48:42,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:48:42,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:48:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 19:48:42,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:48:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:48:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:48:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 19:48:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:48:44,188 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:48:44,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:48:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:48:44,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:48:44,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:48:44,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:48:44,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:48:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:48:44,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:48:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:48:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:48:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:48:44,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:48:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:48:44,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988396465] [2020-10-12 19:48:44,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:48:44,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 19:48:44,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235398112] [2020-10-12 19:48:44,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 19:48:44,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:48:44,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 19:48:44,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-12 19:48:44,299 INFO L87 Difference]: Start difference. First operand 5194 states and 7535 transitions. Second operand 15 states. [2020-10-12 19:48:44,450 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-10-12 19:48:47,272 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 514 DAG size of output: 511 [2020-10-12 19:48:47,517 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2020-10-12 19:48:47,707 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-10-12 19:48:47,887 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-10-12 19:48:48,109 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-10-12 19:48:48,301 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-10-12 19:48:48,566 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-10-12 19:48:48,915 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-10-12 19:48:49,488 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 19:48:50,173 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-10-12 19:48:52,018 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-10-12 19:48:52,290 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2020-10-12 19:48:52,541 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47