/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 SingleStatement --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:30:23,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:30:23,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:30:23,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:30:23,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:30:23,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:30:23,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:30:23,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:30:23,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:30:23,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:30:23,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:30:23,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:30:23,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:30:23,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:30:23,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:30:23,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:30:23,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:30:23,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:30:23,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:30:23,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:30:23,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:30:23,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:30:23,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:30:23,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:30:23,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:30:23,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:30:23,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:30:23,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:30:23,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:30:23,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:30:23,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:30:23,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:30:23,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:30:23,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:30:23,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:30:23,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:30:23,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:30:23,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:30:23,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:30:23,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:30:23,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:30:23,408 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 [2020-09-25 12:30:23,441 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:30:23,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:30:23,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:30:23,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:30:23,445 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:30:23,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:30:23,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:30:23,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:30:23,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:30:23,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:30:23,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:30:23,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:30:23,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:30:23,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:30:23,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:30:23,449 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:30:23,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:30:23,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:30:23,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:30:23,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:30:23,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:30:23,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:30:23,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:30:23,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:30:23,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:30:23,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:30:23,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:30:23,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:30:23,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:30:23,453 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 -> SingleStatement 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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:30:23,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:30:24,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:30:24,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:30:24,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:30:24,014 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:30:24,016 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 12:30:24,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0020faa44/11247dff611349c8a0e19524a111a194/FLAGfa18ea312 [2020-09-25 12:30:24,642 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:30:24,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 12:30:24,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0020faa44/11247dff611349c8a0e19524a111a194/FLAGfa18ea312 [2020-09-25 12:30:24,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0020faa44/11247dff611349c8a0e19524a111a194 [2020-09-25 12:30:25,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:30:25,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:30:25,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:30:25,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:30:25,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:30:25,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:30:24" (1/1) ... [2020-09-25 12:30:25,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d876c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25, skipping insertion in model container [2020-09-25 12:30:25,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:30:24" (1/1) ... [2020-09-25 12:30:25,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:30:25,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:30:25,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:30:25,307 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:30:25,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:30:25,356 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:30:25,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25 WrapperNode [2020-09-25 12:30:25,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:30:25,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:30:25,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:30:25,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:30:25,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (1/1) ... [2020-09-25 12:30:25,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (1/1) ... [2020-09-25 12:30:25,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (1/1) ... [2020-09-25 12:30:25,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (1/1) ... [2020-09-25 12:30:25,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (1/1) ... [2020-09-25 12:30:25,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (1/1) ... [2020-09-25 12:30:25,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (1/1) ... [2020-09-25 12:30:25,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:30:25,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:30:25,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:30:25,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:30:25,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (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 [2020-09-25 12:30:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:30:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:30:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 12:30:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-09-25 12:30:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-09-25 12:30:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:30:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:30:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 12:30:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:30:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-09-25 12:30:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:30:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-09-25 12:30:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:30:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:30:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:30:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:30:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:30:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:30:26,123 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:30:26,123 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-09-25 12:30:26,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:30:26 BoogieIcfgContainer [2020-09-25 12:30:26,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:30:26,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:30:26,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:30:26,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:30:26,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:30:24" (1/3) ... [2020-09-25 12:30:26,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c04bdad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:30:26, skipping insertion in model container [2020-09-25 12:30:26,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:25" (2/3) ... [2020-09-25 12:30:26,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c04bdad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:30:26, skipping insertion in model container [2020-09-25 12:30:26,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:30:26" (3/3) ... [2020-09-25 12:30:26,151 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-09-25 12:30:26,162 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:30:26,171 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:30:26,190 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:30:26,220 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:30:26,220 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:30:26,220 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:30:26,220 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:30:26,220 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:30:26,220 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:30:26,221 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:30:26,221 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:30:26,244 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-09-25 12:30:26,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 12:30:26,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:30:26,252 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] [2020-09-25 12:30:26,252 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:30:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:30:26,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1588916751, now seen corresponding path program 1 times [2020-09-25 12:30:26,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:30:26,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185151098] [2020-09-25 12:30:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:30:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:26,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:26,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:26,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:26,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:26,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:30:26,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:30:26,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 510 [2020-09-25 12:30:26,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:26,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:30:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:30:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:30:26,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:30:26,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:30:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:27,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:27,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:27,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:30:27,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:27,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:30:27,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:27,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:27,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:27,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:27,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:27,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:27,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:30:27,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185151098] [2020-09-25 12:30:27,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:30:27,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:30:27,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596388302] [2020-09-25 12:30:27,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:30:27,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:30:27,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:30:27,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:30:27,057 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 5 states. [2020-09-25 12:30:27,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:30:27,526 INFO L93 Difference]: Finished difference Result 266 states and 324 transitions. [2020-09-25 12:30:27,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:30:27,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-09-25 12:30:27,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:30:27,542 INFO L225 Difference]: With dead ends: 266 [2020-09-25 12:30:27,542 INFO L226 Difference]: Without dead ends: 135 [2020-09-25 12:30:27,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:30:27,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-25 12:30:27,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2020-09-25 12:30:27,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-25 12:30:27,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2020-09-25 12:30:27,619 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 23 [2020-09-25 12:30:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:30:27,620 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2020-09-25 12:30:27,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:30:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2020-09-25 12:30:27,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 12:30:27,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:30:27,625 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] [2020-09-25 12:30:27,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:30:27,625 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:30:27,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:30:27,626 INFO L82 PathProgramCache]: Analyzing trace with hash 23578911, now seen corresponding path program 1 times [2020-09-25 12:30:27,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:30:27,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853814522] [2020-09-25 12:30:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:30:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:27,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:27,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:27,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:27,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:27,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:28,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:32,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:32,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 12:30:32,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:30:32,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:30:32,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:32,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:30:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:30:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:30:32,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:30:32,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:30:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:32,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:32,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:32,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:30:32,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:32,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:30:32,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:32,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:32,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:32,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:32,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:30:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:32,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:32,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:32,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:32,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:30:32,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:30:32,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 12:30:32,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:32,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:30:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:32,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:30:32,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:30:32,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 12:30:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:32,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:32,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:32,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:30:32,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:32,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 12:30:32,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:32,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:30:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:32,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:30:32,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:30:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:30:32,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853814522] [2020-09-25 12:30:32,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:30:32,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 12:30:32,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025608836] [2020-09-25 12:30:32,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 12:30:32,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:30:32,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 12:30:32,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:30:32,961 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 11 states. [2020-09-25 12:30:33,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:30:33,863 INFO L93 Difference]: Finished difference Result 341 states and 389 transitions. [2020-09-25 12:30:33,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 12:30:33,864 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2020-09-25 12:30:33,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:30:33,874 INFO L225 Difference]: With dead ends: 341 [2020-09-25 12:30:33,876 INFO L226 Difference]: Without dead ends: 263 [2020-09-25 12:30:33,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2020-09-25 12:30:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-25 12:30:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 162. [2020-09-25 12:30:33,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-25 12:30:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 182 transitions. [2020-09-25 12:30:33,926 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 182 transitions. Word has length 59 [2020-09-25 12:30:33,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:30:33,926 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 182 transitions. [2020-09-25 12:30:33,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 12:30:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 182 transitions. [2020-09-25 12:30:33,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 12:30:33,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:30:33,932 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:30:33,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:30:33,933 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:30:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:30:33,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1272166002, now seen corresponding path program 1 times [2020-09-25 12:30:33,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:30:33,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237626931] [2020-09-25 12:30:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:30:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:33,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:33,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:34,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:34,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:34,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:35,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:35,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:35,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:35,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:35,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:38,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:38,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 12:30:38,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 12:30:38,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 12:30:38,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:38,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:30:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:30:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 12:30:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:30:39,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:30:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:39,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:39,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:39,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:30:39,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:39,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:30:39,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:39,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:39,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:39,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:30:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:39,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:39,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:39,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:39,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:30:39,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:30:39,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 12:30:39,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:39,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:30:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:39,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:30:39,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:30:39,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 12:30:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:39,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:39,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:39,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:30:39,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:39,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 12:30:39,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:39,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:30:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:30:39,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 12:30:39,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:30:39,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237626931] [2020-09-25 12:30:39,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:30:39,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 12:30:39,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187986659] [2020-09-25 12:30:39,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:30:39,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:30:39,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:30:39,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:30:39,201 INFO L87 Difference]: Start difference. First operand 162 states and 182 transitions. Second operand 12 states. [2020-09-25 12:30:39,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:30:39,983 INFO L93 Difference]: Finished difference Result 317 states and 358 transitions. [2020-09-25 12:30:39,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 12:30:39,984 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-09-25 12:30:39,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:30:39,986 INFO L225 Difference]: With dead ends: 317 [2020-09-25 12:30:39,986 INFO L226 Difference]: Without dead ends: 207 [2020-09-25 12:30:39,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2020-09-25 12:30:39,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-09-25 12:30:40,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 152. [2020-09-25 12:30:40,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-25 12:30:40,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 169 transitions. [2020-09-25 12:30:40,002 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 169 transitions. Word has length 65 [2020-09-25 12:30:40,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:30:40,002 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 169 transitions. [2020-09-25 12:30:40,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:30:40,002 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 169 transitions. [2020-09-25 12:30:40,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 12:30:40,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:30:40,005 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:30:40,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:30:40,006 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:30:40,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:30:40,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1668970121, now seen corresponding path program 1 times [2020-09-25 12:30:40,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:30:40,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678990356] [2020-09-25 12:30:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:30:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:40,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:40,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:40,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:40,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:40,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:40,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:44,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:44,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:44,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:45,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:45,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 12:30:45,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 12:30:45,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 12:30:45,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:45,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:45,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:30:45,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:30:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:30:45,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:45,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:30:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:45,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:45,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:45,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:30:45,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:45,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:30:45,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:45,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:45,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:45,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:30:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:45,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:45,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:45,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:30:45,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:45,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:30:45,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:45,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:45,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:30:45,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:45,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:30:45,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:45,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 12:30:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:45,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:45,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:45,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:30:45,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:45,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 12:30:45,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:45,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:30:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:30:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 12:30:45,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678990356] [2020-09-25 12:30:45,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:30:45,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:30:45,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546564586] [2020-09-25 12:30:45,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:30:45,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:30:45,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:30:45,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:30:45,229 INFO L87 Difference]: Start difference. First operand 152 states and 169 transitions. Second operand 10 states. [2020-09-25 12:30:45,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:30:45,749 INFO L93 Difference]: Finished difference Result 282 states and 317 transitions. [2020-09-25 12:30:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:30:45,749 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 12:30:45,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:30:45,752 INFO L225 Difference]: With dead ends: 282 [2020-09-25 12:30:45,752 INFO L226 Difference]: Without dead ends: 182 [2020-09-25 12:30:45,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-09-25 12:30:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-25 12:30:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 153. [2020-09-25 12:30:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-25 12:30:45,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 169 transitions. [2020-09-25 12:30:45,776 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 169 transitions. Word has length 71 [2020-09-25 12:30:45,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:30:45,777 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 169 transitions. [2020-09-25 12:30:45,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:30:45,777 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 169 transitions. [2020-09-25 12:30:45,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-25 12:30:45,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:30:45,782 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:30:45,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:30:45,782 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:30:45,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:30:45,783 INFO L82 PathProgramCache]: Analyzing trace with hash 928635750, now seen corresponding path program 1 times [2020-09-25 12:30:45,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:30:45,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49953813] [2020-09-25 12:30:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:30:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:45,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:45,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:45,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:45,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:46,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:46,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:46,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:46,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:46,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:47,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:50,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:50,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 12:30:50,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 12:30:50,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:30:50,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:50,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:50,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:30:50,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:30:50,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:30:50,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:50,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:30:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:50,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:50,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:50,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:30:50,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:50,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:30:50,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:50,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:50,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:50,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:30:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:50,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:50,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:50,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:30:50,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:50,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:30:50,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:50,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:30:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:30:50,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:50,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 12:30:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:50,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:50,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:30:50,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:30:50,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:50,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:50,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:30:50,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:30:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 12:30:50,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49953813] [2020-09-25 12:30:50,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:30:50,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 12:30:50,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971583654] [2020-09-25 12:30:51,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:30:51,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:30:51,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:30:51,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:30:51,001 INFO L87 Difference]: Start difference. First operand 153 states and 169 transitions. Second operand 12 states. [2020-09-25 12:30:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:30:51,734 INFO L93 Difference]: Finished difference Result 216 states and 239 transitions. [2020-09-25 12:30:51,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 12:30:51,735 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-09-25 12:30:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:30:51,736 INFO L225 Difference]: With dead ends: 216 [2020-09-25 12:30:51,737 INFO L226 Difference]: Without dead ends: 188 [2020-09-25 12:30:51,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2020-09-25 12:30:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-09-25 12:30:51,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 149. [2020-09-25 12:30:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-09-25 12:30:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 164 transitions. [2020-09-25 12:30:51,747 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 164 transitions. Word has length 77 [2020-09-25 12:30:51,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:30:51,748 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 164 transitions. [2020-09-25 12:30:51,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:30:51,748 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 164 transitions. [2020-09-25 12:30:51,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 12:30:51,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:30:51,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:30:51,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:30:51,750 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:30:51,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:30:51,751 INFO L82 PathProgramCache]: Analyzing trace with hash 864486983, now seen corresponding path program 1 times [2020-09-25 12:30:51,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:30:51,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183229001] [2020-09-25 12:30:51,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:30:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:51,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:51,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:51,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:51,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:51,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:52,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:56,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:56,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 12:30:56,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:30:56,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:30:56,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:56,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:30:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:30:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:30:56,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:56,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:30:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:56,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:56,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:30:56,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:56,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:30:56,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:56,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:56,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:56,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:56,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:56,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:56,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:30:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:56,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:56,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:56,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:30:56,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:30:56,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:56,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:30:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:30:56,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:56,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 12:30:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:56,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:56,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:56,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:30:56,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:56,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:30:56,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:56,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:30:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:56,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:30:56,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:56,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 12:30:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:56,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:56,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:56,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:30:56,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:56,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:30:56,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:56,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:56,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:30:56,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:30:56,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:30:56,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:56,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-25 12:30:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:57,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:57,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:57,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:30:57,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:57,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:30:57,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:57,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:30:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:30:57,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183229001] [2020-09-25 12:30:57,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:30:57,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 12:30:57,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293600672] [2020-09-25 12:30:57,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:30:57,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:30:57,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:30:57,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:30:57,037 INFO L87 Difference]: Start difference. First operand 149 states and 164 transitions. Second operand 12 states. [2020-09-25 12:30:57,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:30:57,732 INFO L93 Difference]: Finished difference Result 305 states and 343 transitions. [2020-09-25 12:30:57,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 12:30:57,732 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-09-25 12:30:57,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:30:57,734 INFO L225 Difference]: With dead ends: 305 [2020-09-25 12:30:57,735 INFO L226 Difference]: Without dead ends: 208 [2020-09-25 12:30:57,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2020-09-25 12:30:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-09-25 12:30:57,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 167. [2020-09-25 12:30:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 12:30:57,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 184 transitions. [2020-09-25 12:30:57,749 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 184 transitions. Word has length 99 [2020-09-25 12:30:57,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:30:57,750 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 184 transitions. [2020-09-25 12:30:57,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:30:57,750 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 184 transitions. [2020-09-25 12:30:57,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 12:30:57,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:30:57,758 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:30:57,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:30:57,758 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:30:57,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:30:57,759 INFO L82 PathProgramCache]: Analyzing trace with hash -537710077, now seen corresponding path program 1 times [2020-09-25 12:30:57,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:30:57,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720649632] [2020-09-25 12:30:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:30:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:57,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:57,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:57,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:58,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 12:30:58,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:30:58,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-09-25 12:30:58,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:58,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:30:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 12:30:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:30:58,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:58,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:30:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:58,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:58,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:30:58,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:58,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:30:58,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:58,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:58,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:58,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:58,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:30:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:58,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:58,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:30:58,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:58,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:30:58,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:58,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:58,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:30:58,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:30:58,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:30:58,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:58,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 12:30:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:58,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:58,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:30:58,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:30:58,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:58,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:30:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:58,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 12:30:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:58,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:58,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:30:58,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:58,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:30:58,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:58,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:58,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:58,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 12:30:58,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:58,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:30:58,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 12:30:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:58,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:30:58,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:30:58,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:30:58,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:30:58,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:30:58,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:30:58,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:30:58,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:30:58,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:30:58,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:30:58,462 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 12:30:58,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720649632] [2020-09-25 12:30:58,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:30:58,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:30:58,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770977325] [2020-09-25 12:30:58,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:30:58,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:30:58,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:30:58,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:30:58,465 INFO L87 Difference]: Start difference. First operand 167 states and 184 transitions. Second operand 6 states. [2020-09-25 12:30:58,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:30:58,822 INFO L93 Difference]: Finished difference Result 316 states and 355 transitions. [2020-09-25 12:30:58,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:30:58,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-09-25 12:30:58,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:30:58,824 INFO L225 Difference]: With dead ends: 316 [2020-09-25 12:30:58,824 INFO L226 Difference]: Without dead ends: 207 [2020-09-25 12:30:58,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:30:58,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-09-25 12:30:58,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 177. [2020-09-25 12:30:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 12:30:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 195 transitions. [2020-09-25 12:30:58,838 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 195 transitions. Word has length 102 [2020-09-25 12:30:58,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:30:58,838 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 195 transitions. [2020-09-25 12:30:58,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:30:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 195 transitions. [2020-09-25 12:30:58,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-25 12:30:58,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:30:58,841 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:30:58,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:30:58,841 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:30:58,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:30:58,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1406282615, now seen corresponding path program 1 times [2020-09-25 12:30:58,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:30:58,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877741295] [2020-09-25 12:30:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:30:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:30:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:58,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:30:59,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:31:03,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:31:03,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-25 12:31:03,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:31:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:31:03,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:31:03,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:31:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:31:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 12:31:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 12:31:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:31:03,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:31:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:31:03,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:31:03,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:31:03,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:31:03,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:31:03,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:31:03,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:31:03,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:31:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:31:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:31:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:31:03,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:31:03,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:31:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:31:03,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:31:03,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:31:03,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:31:03,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:31:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 12:31:03,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:31:03,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:31:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:31:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:31:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:31:03,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:31:04,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 12:31:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:31:04,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:31:04,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:31:04,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:31:04,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:31:04,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 12:31:04,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:31:04,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:31:04,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:31:04,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:31:04,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:31:04,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:31:04,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 12:31:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:31:04,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:31:04,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:31:04,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:31:04,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:31:04,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:31:04,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:31:04,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:31:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:31:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 12:31:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:31:04,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:31:04,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:31:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:31:04,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:31:04,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:31:04,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:31:04,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:31:04,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:31:04,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:31:04,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:31:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:31:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:31:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:31:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:31:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:31:04,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877741295] [2020-09-25 12:31:04,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:31:04,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 12:31:04,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431288813] [2020-09-25 12:31:04,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 12:31:04,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:31:04,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 12:31:04,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:31:04,144 INFO L87 Difference]: Start difference. First operand 177 states and 195 transitions. Second operand 14 states. [2020-09-25 12:31:04,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:31:04,948 INFO L93 Difference]: Finished difference Result 264 states and 297 transitions. [2020-09-25 12:31:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 12:31:04,948 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 105 [2020-09-25 12:31:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:31:04,949 INFO L225 Difference]: With dead ends: 264 [2020-09-25 12:31:04,949 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:31:04,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2020-09-25 12:31:04,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:31:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:31:04,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:31:04,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:31:04,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2020-09-25 12:31:04,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:31:04,953 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:31:04,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 12:31:04,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:31:04,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:31:04,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:31:04,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:31:05,718 INFO L271 CegarLoopResult]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true [2020-09-25 12:31:05,718 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 12:31:05,718 INFO L268 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2020-09-25 12:31:05,718 INFO L268 CegarLoopResult]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed. [2020-09-25 12:31:05,719 INFO L268 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2020-09-25 12:31:05,719 INFO L268 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2020-09-25 12:31:05,719 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-25 12:31:05,719 INFO L268 CegarLoopResult]: For program point L11-5(line 11) no Hoare annotation was computed. [2020-09-25 12:31:05,719 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (or (and (<= elem_exists_~size (+ |elem_exists_#in~size| elem_exists_~i~0)) (= elem_exists_~size |elem_exists_#in~size|)) (not (<= |elem_exists_#in~size| 0))) [2020-09-25 12:31:05,720 INFO L268 CegarLoopResult]: For program point L11-7(lines 11 13) no Hoare annotation was computed. [2020-09-25 12:31:05,721 INFO L268 CegarLoopResult]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-25 12:31:05,721 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 12:31:05,722 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 12:31:05,722 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 12:31:05,722 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 12:31:05,722 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 12:31:05,722 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 12:31:05,722 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 12:31:05,722 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 12:31:05,723 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 12:31:05,723 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 12:31:05,723 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:31:05,723 INFO L264 CegarLoopResult]: At program point insertENTRY(lines 5 8) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-25 12:31:05,723 INFO L268 CegarLoopResult]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed. [2020-09-25 12:31:05,723 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 12:31:05,724 INFO L268 CegarLoopResult]: For program point L5(lines 5 8) no Hoare annotation was computed. [2020-09-25 12:31:05,726 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 12:31:05,726 INFO L268 CegarLoopResult]: For program point L5-1(lines 5 8) no Hoare annotation was computed. [2020-09-25 12:31:05,726 INFO L268 CegarLoopResult]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed. [2020-09-25 12:31:05,726 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:31:05,726 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 12:31:05,727 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 12:31:05,728 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 12:31:05,728 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed. [2020-09-25 12:31:05,728 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 12:31:05,728 INFO L268 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed. [2020-09-25 12:31:05,728 INFO L264 CegarLoopResult]: At program point L52-2(line 52) the Hoare annotation is: false [2020-09-25 12:31:05,728 INFO L268 CegarLoopResult]: For program point L52-3(line 52) no Hoare annotation was computed. [2020-09-25 12:31:05,729 INFO L268 CegarLoopResult]: For program point L52-4(line 52) no Hoare annotation was computed. [2020-09-25 12:31:05,730 INFO L268 CegarLoopResult]: For program point L44-2(lines 44 48) no Hoare annotation was computed. [2020-09-25 12:31:05,730 INFO L268 CegarLoopResult]: For program point L44-3(line 44) no Hoare annotation was computed. [2020-09-25 12:31:05,730 INFO L268 CegarLoopResult]: For program point L44-4(line 44) no Hoare annotation was computed. [2020-09-25 12:31:05,730 INFO L264 CegarLoopResult]: At program point L44-5(lines 44 48) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 12:31:05,731 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-25 12:31:05,731 INFO L268 CegarLoopResult]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2020-09-25 12:31:05,732 INFO L268 CegarLoopResult]: For program point L36-4(line 36) no Hoare annotation was computed. [2020-09-25 12:31:05,732 INFO L268 CegarLoopResult]: For program point L36-5(line 36) no Hoare annotation was computed. [2020-09-25 12:31:05,732 INFO L264 CegarLoopResult]: At program point L36-6(lines 36 39) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 12:31:05,732 INFO L268 CegarLoopResult]: For program point L36-7(lines 36 39) no Hoare annotation was computed. [2020-09-25 12:31:05,732 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2020-09-25 12:31:05,733 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-25 12:31:05,733 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed. [2020-09-25 12:31:05,733 INFO L264 CegarLoopResult]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 12:31:05,733 INFO L268 CegarLoopResult]: For program point L28-6(lines 28 32) no Hoare annotation was computed. [2020-09-25 12:31:05,733 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 12:31:05,733 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 12:31:05,734 INFO L268 CegarLoopResult]: For program point L45-3(lines 45 47) no Hoare annotation was computed. [2020-09-25 12:31:05,735 INFO L268 CegarLoopResult]: For program point L45-4(line 45) no Hoare annotation was computed. [2020-09-25 12:31:05,735 INFO L268 CegarLoopResult]: For program point L45-5(line 45) no Hoare annotation was computed. [2020-09-25 12:31:05,735 INFO L264 CegarLoopResult]: At program point L45-6(lines 45 47) the Hoare annotation is: false [2020-09-25 12:31:05,735 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 12:31:05,735 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 31) no Hoare annotation was computed. [2020-09-25 12:31:05,736 INFO L268 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed. [2020-09-25 12:31:05,736 INFO L268 CegarLoopResult]: For program point L29-5(line 29) no Hoare annotation was computed. [2020-09-25 12:31:05,736 INFO L264 CegarLoopResult]: At program point L29-6(lines 29 31) the Hoare annotation is: false [2020-09-25 12:31:05,736 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 12:31:05,736 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 12:31:05,736 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed. [2020-09-25 12:31:05,736 INFO L264 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: false [2020-09-25 12:31:05,737 INFO L268 CegarLoopResult]: For program point L46-3(line 46) no Hoare annotation was computed. [2020-09-25 12:31:05,737 INFO L268 CegarLoopResult]: For program point L46-4(line 46) no Hoare annotation was computed. [2020-09-25 12:31:05,737 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 12:31:05,737 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-25 12:31:05,737 INFO L268 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-09-25 12:31:05,737 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 12:31:05,737 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 56) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-09-25 12:31:05,738 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 12:31:05,738 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: false [2020-09-25 12:31:05,738 INFO L268 CegarLoopResult]: For program point L30-3(line 30) no Hoare annotation was computed. [2020-09-25 12:31:05,738 INFO L268 CegarLoopResult]: For program point L30-4(line 30) no Hoare annotation was computed. [2020-09-25 12:31:05,738 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 12:31:05,738 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2020-09-25 12:31:05,738 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-25 12:31:05,739 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed. [2020-09-25 12:31:05,739 INFO L264 CegarLoopResult]: At program point L22-6(lines 22 25) the Hoare annotation is: (= main_~n~0 0) [2020-09-25 12:31:05,739 INFO L268 CegarLoopResult]: For program point L22-7(lines 22 25) no Hoare annotation was computed. [2020-09-25 12:31:05,739 INFO L268 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2020-09-25 12:31:05,739 INFO L268 CegarLoopResult]: For program point L40-3(line 40) no Hoare annotation was computed. [2020-09-25 12:31:05,739 INFO L268 CegarLoopResult]: For program point L40-4(line 40) no Hoare annotation was computed. [2020-09-25 12:31:05,740 INFO L264 CegarLoopResult]: At program point L40-5(lines 40 49) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 12:31:05,740 INFO L268 CegarLoopResult]: For program point L40-6(lines 40 49) no Hoare annotation was computed. [2020-09-25 12:31:05,740 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 12:31:05,740 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 12:31:05,740 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 12:31:05,740 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 12:31:05,740 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 12:31:05,741 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed. [2020-09-25 12:31:05,741 INFO L268 CegarLoopResult]: For program point L41-3(lines 41 43) no Hoare annotation was computed. [2020-09-25 12:31:05,741 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed. [2020-09-25 12:31:05,741 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed. [2020-09-25 12:31:05,741 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed. [2020-09-25 12:31:05,741 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 12:31:05,743 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed. [2020-09-25 12:31:05,745 INFO L268 CegarLoopResult]: For program point L41-9(lines 41 43) no Hoare annotation was computed. [2020-09-25 12:31:05,745 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 12:31:05,745 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-25 12:31:05,745 INFO L268 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-09-25 12:31:05,745 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 12:31:05,745 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-25 12:31:05,745 INFO L264 CegarLoopResult]: At program point L50-5(lines 50 54) the Hoare annotation is: (let ((.cse0 (<= main_~n~0 1))) (or (and (<= main_~n~0 main_~x~0) .cse0) (and (<= 1 main_~n~0) (<= main_~n~0 (+ main_~x~0 1)) .cse0))) [2020-09-25 12:31:05,746 INFO L268 CegarLoopResult]: For program point L50-6(lines 50 54) no Hoare annotation was computed. [2020-09-25 12:31:05,746 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 12:31:05,746 INFO L264 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: false [2020-09-25 12:31:05,746 INFO L268 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed. [2020-09-25 12:31:05,746 INFO L268 CegarLoopResult]: For program point L42-3(line 42) no Hoare annotation was computed. [2020-09-25 12:31:05,746 INFO L268 CegarLoopResult]: For program point L42-4(line 42) no Hoare annotation was computed. [2020-09-25 12:31:05,747 INFO L268 CegarLoopResult]: For program point L42-5(line 42) no Hoare annotation was computed. [2020-09-25 12:31:05,747 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 12:31:05,747 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 12:31:05,747 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 12:31:05,747 INFO L268 CegarLoopResult]: For program point L51-3(lines 51 53) no Hoare annotation was computed. [2020-09-25 12:31:05,747 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 12:31:05,747 INFO L268 CegarLoopResult]: For program point L51-4(line 51) no Hoare annotation was computed. [2020-09-25 12:31:05,747 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-09-25 12:31:05,748 INFO L268 CegarLoopResult]: For program point L51-5(line 51) no Hoare annotation was computed. [2020-09-25 12:31:05,748 INFO L264 CegarLoopResult]: At program point L51-6(lines 51 53) the Hoare annotation is: (let ((.cse0 (+ main_~x~0 1))) (and (<= 1 main_~n~0) (<= main_~n~0 .cse0) (<= main_~n~0 main_~y~0) (<= .cse0 main_~n~0) (<= main_~n~0 1))) [2020-09-25 12:31:05,749 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-25 12:31:05,749 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-25 12:31:05,749 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-25 12:31:05,750 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-25 12:31:05,750 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-25 12:31:05,750 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-25 12:31:05,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:31:05 BoogieIcfgContainer [2020-09-25 12:31:05,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:31:05,791 INFO L168 Benchmark]: Toolchain (without parser) took 40777.21 ms. Allocated memory was 140.5 MB in the beginning and 450.4 MB in the end (delta: 309.9 MB). Free memory was 103.7 MB in the beginning and 86.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 326.7 MB. Max. memory is 7.1 GB. [2020-09-25 12:31:05,792 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:31:05,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.37 ms. Allocated memory is still 140.5 MB. Free memory was 103.0 MB in the beginning and 92.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-09-25 12:31:05,794 INFO L168 Benchmark]: Boogie Preprocessor took 132.78 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 92.0 MB in the beginning and 180.3 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:31:05,795 INFO L168 Benchmark]: RCFGBuilder took 647.94 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 151.0 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:31:05,798 INFO L168 Benchmark]: TraceAbstraction took 39642.85 ms. Allocated memory was 202.9 MB in the beginning and 450.4 MB in the end (delta: 247.5 MB). Free memory was 150.4 MB in the beginning and 86.8 MB in the end (delta: 63.5 MB). Peak memory consumption was 311.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:31:05,810 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 343.37 ms. Allocated memory is still 140.5 MB. Free memory was 103.0 MB in the beginning and 92.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.78 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 92.0 MB in the beginning and 180.3 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 647.94 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 151.0 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39642.85 ms. Allocated memory was 202.9 MB in the beginning and 450.4 MB in the end (delta: 247.5 MB). Free memory was 150.4 MB in the beginning and 86.8 MB in the end (delta: 63.5 MB). Peak memory consumption was 311.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: n <= x && n == 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: n <= x && n == 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: (((1 <= n && n <= x + 1) && n <= y) && x + 1 <= n) && n <= 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (n <= x && n <= 1) || ((1 <= n && n <= x + 1) && n <= 1) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: n <= x && n == 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: n <= x && n == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (size <= \old(size) + i && size == \old(size)) || !(\old(size) <= 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: n == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.7s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 859 SDtfs, 2039 SDslu, 3232 SDs, 0 SdLazy, 3794 SolverSat, 333 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 308 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 77 PreInvPairs, 106 NumberOfFragments, 122 HoareAnnotationTreeSize, 77 FomulaSimplifications, 29415 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 22 FomulaSimplificationsInter, 445 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 32.7s InterpolantComputationTime, 601 NumberOfCodeBlocks, 601 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 593 ConstructedInterpolants, 0 QuantifiedInterpolants, 100446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 93/119 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...